Patents:

1. V.V. Rangarao, K.V.L. Subramaniam, S. Suriya Prakash ‘Lateral Reinforcement System and Method for Concrete Structures’, Patent Number: 3001/ CHE/2015 dated 16 June 2015
2. V.V. Rangarao, K.V.L. Subramaniam, S. Suriya Prakash ‘Lateral Reinforcement System and Method for Concrete Structures’, US Patent No. 9719245 B1, Aug. 1, 2017

Publications

Journals:

1. Amarteja Kocherla and Kolluru V. L. Subramaniam, “Stress and damage localization monitoring in fiber-reinforced concrete using surface mounted PZT sensors,” to appear in  Measurement Science and Technology.
2. Bhagath Singh G.V.P., and Kolluru V. L. Subramaniam, “Evaluation of total reactive oxide ratios and working solution ratios on strength development in fly ash-based geopolymers,” accepted in Journal of Materials, ASCE.
3. Vemuri, R., SuriyaPrakash S., and Kolluru V.L. Subramaniam, “The Behavior of Short Reinforced Concrete Column Elements with Buckling Resistant Anti Spring Clad Reinforcing Bars (BRASR) under Axial Compression,” accepted in the Journal of Structural Engineering, ASCE.
4. Anvit Gadkar and Kolluru V.L. Subramaniam, (2020) “An Evaluation of Yield and Maxwell Fluid Behaviors of Fly ash Suspensions in Alkali-silicate Solutions,” to appear in Materials and Structures, RILEM. (DOI: 10.1617/s11527-019-1429-7).
5. Ravula, M.B., and Kolluru V. L. Subramaniam, (2019) “Experimental Investigation and Interface Material Model for the Cohesive Frictional Shear Response of Soft-Brick Masonry under Applied Compression,” Journal of Materials, ASCE, 31(12), (DOI: 10.1061/(ASCE)MT.1943-5533.0002961).
6. Bhagath Singh G.V.P., and Kolluru V. L. Subramaniam, (2019) “Production and Characterization of Low-Energy Portland Composite Cement from Post-Industrial Waste,” Journal of Cleaner Production, 239, 1, 118024. (DOI: 10.1016/j.jclepro.2019.118024)
7. Kala Kondepudi and Kolluru V.L. Subramaniam, (2019) “Rheological characterization of low-calcium fly ash suspensions in alkaline silicate colloidal solutions for geopolymer concrete production,” Journal of Cleaner Production, 234, 690-701 (DOI: 10.1016/j.jclepro.2019.06.124).
8. Sahith Gali and Kolluru V. L. Subramaniam, (2019) “Synergistic Enhancements in Cohesive stress transfer and Shear capacity in Hybrid Steel and Macro-Polypropylene Fiber reinforced concrete,” Theoretical and Applied Fracture Mechanics 103 (2019) 102250 (DOI: 10.1016/j.tafmec.2019.102250)
9. Sahtih Gali, and Kolluru V.L. Subramaniam, (2019) “Efficiency of steel fibers in shear resistance of reinforced concrete beams without stirrups at different moment-to-shear ratios,” Engineering Structures, pp. 249-260 (DOI: 10.1016/j.engstruct.2019.03.015).
10. Ravula, M.B., and Kolluru V. L. Subramaniam, (2019) “Cohesive-Frictional Interface Fracture Behavior in Soft-Brick Masonry: Experimental Investigation and Theoretical Development,” Materials and Structures, RILEM, 52 (2) (DOI: 10.1617/s11527-019-1333-1)
11. Jayaprakash Vemuri, Kolluru V.L. Subramaniam, and Sumer Chopra, (2019) “Surface Level Synthetic Ground Motions for M7.6 2001 Gujarat Earthquake,” GeoSciences, 8(1), 429 (DOI: 10.3390/geosciences8120429).
12. Sahith Gali and Kolluru V. L. Subramaniam, (2019) “Influence of Cohesive Stress-Crack Separation Relationship on Shear Capacity of Steel Fiber Reinforced Concrete” Engineering Fracture Mechanics., 206, pp. 218-232 (10.1016/j.engfracmech.2018.11.035).
13. Sahith Gali and Kolluru V. L. Subramaniam, (2019) “Shear Strength Enhancement in Slender and non-slender Steel Fiber Reinforced Beams,” ACI Structural Journal. V. 116, No. 3, May 2019 (DOI: 10.14359/51713307).
14. Bhagath Singh G.V.P., and Kolluru V. L. Subramaniam, (2019) “Influence of Temperature on the Reaction Product and Strength gain in Alkali-activate Low-calcium Fly ash”, Cement and Concrete Composites, 95, pp. 10-18 (DOI: 10.1016/j.cemconcomp.2018.10.010).
15. Bhagath Singh G.V.P., and Kolluru V. L. Subramaniam, (2019) “Effect of active components on strength development in alkali-activated low calcium fly ash cements,” Journal of Sustainable Cement-Based Materials, Vol. 8, issue 1, pp. 1-19 (DOI: 10.1080/21650373.2018.1520657).
16. Vemuri J.P., Ehteshamuddin, S., and Kolluru V.L. Subramaniam, (2018) “Evaluation of seismic displacement demand for unreinforced masonry shear walls,” Cogent Engineering, 5(1), 1480189 (DOI: 10.1080/23311916.2018.1480189).
17. Vemuri J.P., Ehteshamuddin, S., and Kolluru V.L. Subramaniam, (2018) “Numerical Simulation of Soft Brick Unreinforced Masonry Walls Subjected to Lateral Loads,” Cogent Engineering, Vol. 5, Issue 1 (DOI: 10.1080/23311916.2018.1551503).
18. Sahith Gali and Kolluru V. L. Subramaniam, (2018) “Improvements in Fracture Behavior and Shear Capacity of Fiber Reinforced Normal and Self Consolidating Concrete: A comparative Study,” in Construction and Building Materials. November 2018, 189:205-217 (DOI: 10.1016/j.conbuildmat.2018.08.194)
19. Arun Narayanan, Amarteja Kocherla and Kolluru V. L. Subramaniam, (2018) “PZT Sensor Array for Local and Distributed Measurements of Localized Cracking in Concrete,” Smart Materials and Structures. Vol. 27, No. 7, p.075049 (DOI: 10.1088/1361-665X/aaca4d)
20. Arun Narayanan, Amarteja Kocherla and Kolluru V. L. Subramaniam, (2018) “Understanding the Coupled Electromechanical response of a PZT Patch attached to Concrete: Influence of Substrate size,” Measurement. Vol. 124, pp. 505-514 (DOI: 10.1016/j.measurement. 2018.04.055)
21. Sahith Gali and Kolluru V. L. Subramaniam, (2018) “Influence of Steel fibers on Fracture Energy and Shear Behavior of Steel Fiber Reinforced SCC,” Journal of Materials, ASCE, Vol. 30, Issue 11, (DOI: 10.1061/(ASCE)MT.1943-5533.0002496)
22. Sahith Gali and Kolluru V. L. Subramaniam, (2018) “Multi-linear Stress-crack Separation Relationship for Steel Fiber Reinforced Concrete: Analytical Framework and Experimental Evaluation,” Journal of Theoretical and Applied Fracture Mechanics, 93 pp. 33-43 (DOI: 10.1016/j.tafmec.2017.06.018)
23. Bhagath Singh G.V.P., and Kolluru V. L. Subramaniam, (2018) “Dissolution of the Glassy Phase in Low Calcium Fly ash during Alkaline Activation,” Advances in Cement Research, Volume 30 Issue 7, July, 2018, pp. 313-322 (DOI: 10.1680/jadcr.17.00170)
24. Sahith Gali and Kolluru V. L. Subramaniam, (2017) “Investigation of the Dilatant Behavior of Cracks in the Shear Response of Steel Fiber Reinforced Concrete Beams,” Engineering Structures, Volume 152, 1 December 2017, 832-842 (DOI: 10.1016/j.engstruct.2017.09.050).
25. Pruthvi Raj G., Mehar Babu, R., and Kolluru V. L. Subramaniam, (2017), “Failure in Clay Brick Masonry with Soft Brick under Compression: Experimental Investigation and Numerical Simulation,” Key Engineering Materials, 747:472-479 (DOI: 10.4028/www.scientific.net/ KEM.747.472).
26. Arun Narayanan, Amarteja Kocherla and Kolluru V. L. Subramaniam, (2017) “Embedded PZT sensor for Continuous monitoring of Mechanical Impedance of Hydrating Cementitious Materials,” Journal of Non Destructive Evaluation,36, No. 4, p.64 (DOI: 10.1007/s10921-017-0442-4).
27. Bhagath Singh, G.V.P. and Kolluru V. L. Subramaniam, (2017) “Evaluation of Sodium Content and Sodium Hydroxide Molarity on Compressive Strength of Alkali Activated low Calcium Fly ash,” Cement and Concrete Composites, Vol.81. pp. 122-132 (DOI: 10.1016/j.cemconcomp.2017.05.001).
28. Sahith Gali, and Kolluru V. L. Subramaniam, (2017) “Investigation of Post-cracking Hinge-type behavior in Flexural response of Steel Fiber Reinforce Concrete with the use of Digital Image Analysis,” International Journal of Concrete Structures and Materials, 11, No.2, pp.365–375, (DOI: 10.1007/s40069-017-0197-4)
29. Chiranjeevi K. Reddy, and Kolluru V. L. Subramaniam, (2017) “Post cracking Hinge-type Behavior in Flexure Response of Macro-synthetic Fiber Reinforced Concrete,” Magazine of Concrete Research, Volume 69 Issue 9, May, 2017, pp. 467-478 (DOI: 10.1680/jmacr.16.00396).
30. Kolluru V. L. Subramaniam, M. Ghosn and M. Ali Ahmad, (2017) “Evaluation of Variation in Local Interface Fracture Properties during Shear Debonding of CFRP from Concrete,” Journal of Adhesive Science and Technology, Volume 31, Issue 19-20, pp. 2202-2218 (DOI: 10.1080/01694243.2016.1261505)
31. Mehar Babu, R., and Kolluru V. L. Subramaniam, (2017) “Experimental Investigation of Compressive Failure in Masonry Brick Assemblages made with soft brick,” Materials and Structures, RILEM (DOI: 10.1617/s11527-016-0926-1).
32. Chiranjeevi Reddy, and Kolluru V. L. Subramaniam, (2017) “Analysis for multi-linear stress-crack opening cohesive relationship: Application to macro-synthetic fiber reinforced concrete,” Engineering Fracture Mechanics, 169, pp. 128-145, November 2016 (DOI: 10.1016/j.engfracmech.2016.11.015)
33. Bhagath Singh, G.V.P., and Kolluru V. L. Subramaniam, (2017) “Method for Direct Determination of Glassy Phase Dissolution in Hydrating Fly Ash‐Cement System Using X‐ray Diffraction,” Journal of American Ceramic Society. Vol. 100, Issue 1, pp. 403-412 (DOI: 10.1111/jace.14486).
34. Bhagath Singh, G.V.P., and Subramaniam, K.V.L., (2017) “Direct Decomposition X-ray Diffraction Method for Amorphous Phase Quantification in Binary Blends of Siliceous Fly ash and Hydrated Cement,” Journal of Sustainable Cement-based Materials. 6(2) pp. 111-125 (DOI: 1080/21650373.2016.1177478).
35. Jayaprakash Vemuri and Subramaniam V.L. Kolluru (2016). “Seismic Analyses of Unreinforced Masonry Walls,” International Journal of Integrated Disaster Risk Management, Vol. 6, No.2, pp. 102-115
36. Bhagath Singh, G.V.P., and Kolluru V. L. Subramaniam, (2016) “Influence of Temperature and Lime Content on Fly Ash Dissolution in a Binary Blend,” Journal of Advanced Concrete Technology, 14(9), 614-624 (DOI: 10.3151/jact.14.614)
37. Jain, S., SuriyaPrakash, S. and Kolluru V. L. Subramaniam, (2016) “Monitoring of Concrete Cylinders with and without Steel Fibers under Compression using Piezo-ceramic Smart Aggregates,” Journal of Nondestructive Evaluation, 35:59 (DOI: 10.1007/s10921-016-0376-2)
38. Bhagath Singh, G.V.P., and Kolluru V. L. Subramaniam, (2016) “Quantitative XRD Study of Amorphous Phase in Alkali activated Low Calcium siliceous Fly ash,” Construction and Building Materials, 124, pp. 139-147 (DOI: 10.1016/j.conbuildmat.2016.07.081)
39. Arun Narayanan and Kolluru V. L. Subramaniam, (2016) “Sensing of damage and substrate stress in Concrete using electro-mechanical impedance measurements of bonded PZT patches,” Smart Materials and Structures, 25(9):095011 (DOI: 10.1088/0964-1726/25/9/095011)
40. Nian, W., Kolluru V. L. Subramaniam, and Andreopoulos, Y., (2016) “Experimental Investigation on Blast Response of Cellular Concrete,” International Journal of Impact Engineering, 96, 105–115 (DOI: 10.1016/j.ijimpeng.2016.05.021).
41. Kolluru V.L. Subramaniam, (2016) “Identification of Early-age cracking in Concrete Bridge Decks,” Journal of Performance of Constructed Facilities, ASCE (DOI: 10.1061/(ASCE)CF.1943-5509.0000915)
42. Bhagath Singh, G.V.P., and Kolluru V. L. Subramaniam, (2016) “Quantitative XRD Analysis of Binary Blends of Siliceous Fly ash and Hydrated Cement,” Journal of Materials in Civil Engineering, ASCE, 28(8) (DOI: 10.1061/(ASCE)MT.1943-5533.0001554).
43. Kolluru V.L. Subramaniam, and Xiaojun Wang, (2016) “Ultrasonic Shear Wave Reflection Method for direct determination of Porosity and Shear Modulus in early age Cement Paste and Mortar,” Journal of Engineering Mechanics, ASCE, 142 (9) (DOI: 10.1061/(ASCE)EM.1943-7889.0001113)
44. Arun Narayanan and Kolluru V.L. Subramaniam, (2016) “Experimental evaluation of load-induced damage in concrete from distributed microcracks to localized cracking on electro-mechanical impedance response of bonded PZT,” Construction and Building Materials, Vol. 105, pp. 536-544 (DOI: 10.1016/j.conbuildmat.2015.12.148).
45. Nian, W., Subramaniam, K.V., and Andreopoulos, Y., (2016) “One-Dimensional Numerical Framework for Shock Compaction of Cellular Foams,” Journal of Aerospace Engineering, ASCE. Vol. 29, Issue 4, pp. 105-115(DOI: 10.1061/(ASCE)AS.1943-5525.0000576).
46. Nian, W., Subramaniam, K.V., and Andreopoulos, Y., (2015) “Experimental Investigation of Blast Pressure Attenuation by Cellular Cement Foams,” ACI Materials Journal, V. 112, No. 1, pp. 21-28 (DOI: 10.14359/51687242)
47. Carloni, C., Subramaniam, K.V., Savoia, M. and Mazzotti, C. (2015), “Confinement of Masonry Columns with PBO FRCM Composites,” Key Engineering, Vol. 624, 644-651 (DOI: 10.4028/www.scientific.net/KEM.624.644).
48. Subramaniam, K.V., and Popovics, J.S., (2015) “Review of ultrasonic wave reflection applied to early-age Concrete and Concrete Cementitious Materials,” Journal of Nondestructive Evaluation, 34(1):266-278 (DOI: 10.1007/s10921-014-0267-3)
49. Carloni, C., and Subramaniam, K.V., (2013), “Sub-critical Fatigue Crack Growth in FRP/Concrete Cohesive Interface,” Composites Part B, 51, 35-43 (DOI: 10.1016/j.compositesb.2013.02.015)
50. Carloni, C., Subramaniam, K.V., (2012) “Application of fracture mechanics to debonding of FRP from RC members,” ACI SP 286-10, 1-20 (DOI: 10.14359/51683910).
51. Carloni, C., Subramaniam, K.V., Savoia, M. and Mazzotti, C. (2012), “Experimental determination of FRP-concrete cohesive interface properties under fatigue loading”, Composite Structures , 94 , 1288–1296 (DOI: 10.1016/j.compstruct.2011.10.026)
52. Carloni, C., and Subramaniam, K.V., (2012), “FRP/Masonry Debonding: Numerical and Experimental Study of the Role of Mortar Joints,” Journal of Composites for Construction, ASCE, 16, No. 5, 581-589 (DOI: 10.1061/(ASCE)CC.1943-5614.0000282).
53. Nian, W., Subramaniam, K.V., and Andreopoulos, Y., (2012), “Dynamic Compaction of Foam under Blast Loading considering Fluid-structure Interaction Effects,” International Journal of Impact Engineering, 50, 29-39 (DOI: 10.1016/j.ijimpeng.2012.06.005).
54. Kamyab, W., Subramaniam, K.V., Andreopulos, Y., (2011) “Stress Transmission in Porous Materials Impacted by Shock Waves,” Journal of Applied Physics, 109, 013523 (DOI: 10.1063/1.3517791).
55. Wang, X., Subramaniam, K.V., (2011) “An Ultrasonic Procedure for Continuous Monitoring of Capillary Porosity and Elastic Properties in Hydrating Cement Paste,” Cement and Concrete Composites, 33(3), 389-401 (DOI: 10.1016/j.cemconcomp.2010.11.001).
56. Subramaniam, K.V., Carloni, C., and Nobile, L., (2011) “Geometric Scaling in the Ultimate Load during FRP-Concrete Debonding as a Function of Relative Width,” STRAIN, Vol. 47, Issue 3, pp. 127-137 (DOI: 1 1111/j.1475-1305.2008.00481.x)
57. Carloni, C., and Subramaniam, K.V., (2010) “Direct Determination of Cohesive Stress Transfer during Debonding of FRP from Concrete, Composite Structures, 93, Issue 1, pp. 184-192 (DOI: 10.1016/j.compstruct.2010.05.024).
58. Subramaniam, K.V., and Bi, M. (2010) “Investigation of steel corrosion in cracked concrete: Evaluation of Macrocell and Microcell rates using Tafel Polarization Response” Corrosion Science, 52, Issue 8, pp. 2725-2735 (DOI: 10.1016/j.corsci.2010.04.030).
59. Wang, X., Subramaniam, K.V., and Lin, F., (2010) “Ultrasonic Measurement of Viscoelastic Shear Modulus Development in Hydrating Cement Paste,” Ultrasonics, 50, Issue 7, pp. 726-738 (DOI: 10.1016/j.ultras.2010.02.010).
60. Subramaniam, K.V., Kunin, J., Curtis, R., Streeter, D., (2010) “Influence of Early Temperature Rise on Movements and Stress Development in Concrete Decks,” Journal of Bridge Engineering (ASCE), Vol. 15, Issue 1, pp. 108-116 (DOI: 10.1061/(ASCE)1084-0702(2010)15:1(108)).
61. Subramaniam, K.V., and Wang, X., (2010) “An Investigation of Microstructure Evolution in Hydrating Cement Paste through Setting using Ultrasonic and Rheological Measurements,” Cement and Concrete Research, Volume 40, Issue 1, January 2010, Pages 33-44 (DOI: 10.1016/j.cemconres.2009.09.018).
62. Nian, W., Subramaniam, K.V., and Andreopoulos, Y., (2009) “Response of an Elastic Structure Subject to Air Shock Considering Fluid-Structure Interaction,” Journal of Aerospace Engineering, ASCE (DOI: 10.1061/(ASCE)AS.1943-5525.0000022)
63. Carloni, C., and Subramaniam, K.V., (2009) “Investigation of interface fracture during debonding between FRP and Masonry” Advances in Structural Engineering, 12, No. 5., pp. 731-743 (DOI: 10.1260/136943309789867890).
64. Subramaniam, K.V., Nian, W., and Andreopoulos, Y., (2009) “Blast Response Simulation of an Elastic Structure: Evaluation of the Fluid-Structure Interaction Effect,” International Journal of Impact Engineering, 36, Issue 7, July Pages 965-974. (DOI: 10.1016/j.ijimpeng.2009.01.001).
65. Subramaniam, K.V., and Bi, M., (2009) “Investigation of the Local Steel-Concrete Interface Response for Corrosion Measurement,” Corrosion Science. 51, Issue 9, p. 1976–1984 (DOI: 10.1016/j.corsci.2009.05.025).
66. Subramaniam, K.V., Ali-Ahmad, M., and Ghosn, M., (2008) “Freeze-Thaw Degradation of FRP-Concrete Interface: Impact on Fracture Parameters,” Engineering Fracture Mechanics, Vol. 75, Issue 13, 3924-3940 (DOI: 10.1007/978-3-540-72448-3_42).
67. Andreopoulos, Y., Xanthos, S., and Subramaniam, K.V., (2007) “From interaction of moving shocks with metallic grids to blast wave mitigation,” Shock Waves, Vol. 16, No. 6, pp. 455-466 (DOI: 10.1007/s00193-007-0082-1).
68. Subramaniam, K.V., C. Carloni, and. L. Nobile, (2007) “Width effect in the interface fracture during shear debonding of FRP sheets from concrete,” Engineering Fracture Mechanics, Volume 74, Issue 4, March, pp. 578-594 (DOI: 10.1016/j.engfracmech.2006.09.002).
69. Ali-Ahmad, M., Subramaniam, K.V., and Ghosn, M., (2007) “Analysis of Scaling and Instability in FRP-Concrete Shear Debonding for Beam Strengthening Applications,” Journal of Engineering Mechanics, ASCE, Vol. 133, No. 1, pp. 58-67 (DOI: 10.1061/(ASCE)0733-9399(2007)133:1(58)).
70. Subramaniam, K.V., and Lee, J., (2007) “Ultrasonic Assessment of Early-age changes in the Material Properties of Cementitious Materials,” Materials and Structures, RILEM, Vol. 40, No. 3, pp. 301-309 (DOI: 10.1617/s11527-006-9107-y).
71. Ali-Ahmad, M., Subramaniam, K.V., and Ghosn, M., (2006) “Experimental Investigation and Fracture Analysis of Debonding between Concrete and FRP,” Journal of Engineering Mechanics, ASCE, Vol. 132, No. 9, pp. 914-923 (DOI: 10.1061/(ASCE)0733-9399(2006)132:9(914)).
72. Subramaniam, K.V., (2006) “Ultrasonic Measurement of Early-Age Viscoelastic Properties of Cementitous Materials,” in Advanced Testing of Fresh Cementitious Materials, ATC Workshop Proceedings edited by H.W. Reinhardt, Stuttgart, August 3-4, 2006 (ISBN 3-980 8542 6-4).
73. Subramaniam, K.V., Lee J., and Christensen, B. (2005), “Monitoring the Setting Behavior of Cementitious Materials using One-Sided Ultrasonic Measurements,” Cement and Concrete Research, vol. 35, pp. 850-857 (DOI: 10.1016/j.cemconres.2004.10.028).
74. Subramaniam, K.V., Gromotka, R., Obla, K., Hill, R., and Shah, S.P., (2005) “The influence of Ultra-Fine Fly Ash on the Early-Age Mechanical and Shrinkage Characteristics of Concrete,” Journal of Materials in Civil Engineering, ASCE, v 17, n 1, January/February, p 45-53 (DOI: 10.1061/(ASCE)0899-1561(2005)17:1(45)).
75. Borges U., Subramaniam, K.V., Weiss, W.J., Shah S.P., (2004) “Length Effect on Ductility of Concrete in Uniaxial and Flexural Compression,” ACI Structural Journal, v 101, n 6, November/December, p 765-772 (DOI: 10.14359/13451).
76. Mu, B., Subramaniam, K.V., and Shah S.P., (2004) “Failure Mechanism of Concrete under Fatigue Compressive Load,” Journal of Materials in Civil Engineering, ASCE, 16, No. 6, pp. 566-572 (DOI: 10.1061/(ASCE)0899-1561(2004)16:6(566).
77. Delatte, N., Chen, S., Parker, N., Agrawal, A., Mylonakis, G., Subramaniam, K.V., Bosela, P., McNeil, S., (2003) “The Application of Nondestructive Evaluation to Subway Tunnel Systems,” Journal of the Transportation Research Board. No. 1845, p. 127 (DOI: doi.org/10.3141/1845-14).
78. Subramaniam K.V., and Shah S.P., (2003) “Biaxial Tension Fatigue Response of Concrete,” Cement and Concrete Composites Journal 25, pp. 617-623 (DOI: 10.1016/S0958-9465(02)00075-6).
79. Akkaya, Y., Voigt, T., Subramaniam, K.V., Shah, S.P., (2003) “Nondestructive Measurement of Concrete Strength by an Ultrasonic Wave Reflection Method,” Materials and Structures Journal, RILEM, 36, No.262 (DOI: 10.1007/BF02480827).
80. Subramaniam, K.V., Popovics, J.S., and Shah, S.P., (2002) “Fatigue Fracture in Concrete Subjected to Biaxial Stresses in the C-T Region,” Journal of Engineering Mechanics, ASCE, 128, No. 6, pp. 668-676 (DOI: 10.1061/(ASCE)0733-9399(2002)128:6(668)).
81. Subramaniam K.V., Mohsen, J.P., Shaw, C., Shah, S.P., (2002), “Ultrasonic Technique for Monitoring Concrete Strength Gain at Early Ages,” Materials Journal, American Concrete Institute, Vol. 99, No. 5, pp. 458-462 (DOI: 10.14359/12324).
82. Subramaniam, K.V., Popovics, J.S., and Shah, S.P., (2002) “Fatigue Fracture and Crack Propagation in Concrete Subjected to Tensile Biaxial Stresses,” in ACI SP 206, Symposium Proceedings “Concrete” Material Science to Applications”, Ed. P.N. Balaguru, A.Naaman, and W. Weiss, ACI, Farmington Hills, MI, pp. 25-40.
83. Subramaniam, K.V., O’Neil, E., Popovics, J.S., and Shah, S.P. (2000), “Crack Propagation in Flexural Fatigue of Concrete,” Engrg. Mech., ASCE, vol 126(9), pp.891-898 (DOI: 10.1061/(ASCE)0733-9399(2000)126:9(891)).
84. Rapaport, J.R., Subramaniam, K.V., Popovics, J.P., Shah, S.P., (2000), “Using Ultrasound to Monitor the Stiffening of Concrete with Admixtures,” Materials Journal of the American Concrete Institute, 97, No. 6 (DOI: 10.14359/9981).
85. Subramaniam, K.V., Popovics, J.S., and Shah, S.P., (2000) “Determining Elastic Properties of Concrete Using Vibrational Resonance Frequencies of Standard Test Cylinders,” in Cement, Concrete and Aggregates, American Society for Testing and Materials (ASTM), 22, No. 2, pp. 81-89 (DOI: 10.1520/CCA10467J.).
86. Shah, S. P., Popovics, J. S., Subramaniam, K. V., Aldea, C.M., (2000), “New directions in concrete health monitoring technology,” Journal of Engineering Mechanics, ASCE, v 126, n 7, July, p 754-760 (DOI: 10.1061/(ASCE)0733-9399(2000)126:7(754))
87. Subramaniam, K.V., Popovics, J.S., and Shah, S.P., (1999), “Fatigue response of concrete subjected to biaxial stresses in the compression-tension region,” Materials Journal, American Concrete Institute (ACI), Vol 96, No.6, pp. 663-669 (DOI: 10.14359/792).
88. Subramaniam, K.V., Popovics, J.S., and Shah, S.P., (1998), “Testing Concrete in Torsion: Instability Analysis and Experiments,” Journal of Engineering Mechanics, American Society of Civil Engineers (ASCE), Vol. 124, No. 11, pp. 1258-1268 (DOI: 10.1061/(ASCE)0733-9399(1998)124:11(1258)).
89. Nims, D.K., Subramaniam, K.V., Parvin A., and Aktan, A.E., (1996) “Analysis of Elastomeric Bearings in an Instrumented Bridge System,” American Concrete Institute (ACI), SP-164, (B. Atkinson Ed.), pp. 177-196.
90. Subramaniam, K.V., and Sinha S.N., (1995), “Analytical Model for Cyclic Compressive Behavior of Brick Masonry,” Structural Journal ACI, Vol. 92, No.3, pp. 288-295 (DOI: 10.14359/1139).
91. Subramaniam, K.V., and Sinha, S.N., (1995), “Design Curves for Prestressed Concrete Rectangular Beam Sections Based on BS 8110,” Structural Engineering and Mechanics, vol. 3, No.6, pp. 555-567 (DOI: 10.12989/sem.1995.3.6.555).

Indian Journals:

1. Bhagath Singh, G.V.P., and Subramaniam, K.V.L., “Characterization of Indian fly ashes using different Experimental Techniques,” The Indian Concrete Journal, 92(3):10-23.
2. Bhagath Singh, G.V.P., and Subramaniam, K.V.L., “Activation of siliceous fly ash at very high levels of cement replacement,” The Indian Concrete Journal, August 2014, Vol. 88, Issue 8.
3. Biernacki, J. J, Gopalakrishnan, S., Garci-Juenger, M. C., Lopez de Murphy, M., Subramaniam, K., Weiss, J.,  Jansen, D., Lakshmanan, N., Shah ,S.P., (2005) “Indo-US Workshop on High Performance Concrete Composites”, Journal of Structural Engineering of the Structural Engineering Research Center, 32(4) Oct-Nov  pp. 275-282

Book Chapters:

1. Subramaniam, K.V., Ghosn, M., and Ali-Ahmad, M., “Impact of Freeze-Thaw Degradation on FRP-Concrete Interface Fracture,” Advances in Construction Materials, Springer Berlin Heidelberg, (DOI 10.1007/978-3-540-72448-3), 2007, pp. 419-426.
2. Shah, S.P., Voigt, T., and Subramaniam, K.V., “One-Sided Ultrasonic Techniques for Monitoring Concrete,” in: Advanced testing of cement-based materials during setting and hardening, Reinhardt & Grosse (Eds.), RILEM Report 31, RILEM Publ. S.A.R.L.: Cachan ENS, 2005, pp

Reports:

• “Concrete Deck Material Properties,” by Kolluru Subramaniam, New York State Department of Transportation, 2009. (available for public dissemination through New York State Department of Transportation at    https://www.nysdot.gov/divisions/engineering/technical-services/trans-r-and-d-repository/C-02-03_FINAL-REPORT.pdf)
• “Development of Smart Bridge Bearings System-A Feasibility Study” by Anil Agrawal, Kolluru Subramaniam and Y. Pan, New York State Department of Transportation, 2005.
• “Application of FRP Technology for Infrastructure Repair” by Michel Ghosn, Kolluru Subramaniam and Vasil Diyamandoglu, New York State Energy Research and Development Agency (NYSERDA), 2005.

Refereed Proceedings

1. Ravula, M B and K V L, Subramaniam (2019), “Experimental Investigation of cohesive-frictional interface fracture response in soft Brick masonry,” in the proceedings of the 13th North American Masonry Conference, Salt lake City, UT, USA, 16-19 June 2019.
2. Singh, G V P B and K V L, Subramaniam (2018) Optimum reactive ratios to produce an aluminosilicate binder from activated low-calcium fly ash, 3rd R.N. Raikar Memorial International Conference and Gettu-Kodur International Symposium on Advances in Science and Technology of Concrete, 14-15 December 2018, Mumbai, India.
3. Gali, Sahith and K V L, Subramaniam (2018), Effectiveness of Steel Fibers in Shear Behavior of Slender and non-slender SFRC Beams, 3rd R.N. Raikar Memorial International Conference and Gettu-Kodur International Symposium on Advances in Science and Technology of Concrete, 14-15 December 2018, Mumbai, India.
4. Gali, Sahith and K V L, Subramaniam (2018), Enhancements in Fracture Behavior and Shear capacity in Hybrid Steel and Macro-Polypropylene Fiber reinforced concrete, FRC2018: Fibre Reinforced Concrete: from Design to Structural Applications, Joint ACI-fib-RILEM International Workshop, Desenzaono, Italy, June 27th – 30th, 2018.
5. Narayanan, Arun and Kocherla, Amarteja and K V L, Subramaniam (2017) Development of an Embedded PZT Sensor for Monitoring Mechanical Impedance of a Cementitious Material through Setting and Early Strength Gain. In: 71st RILEM Annual Week & ICACMS, September 2017, Chennai, IIT Madras.
6. Ravula, M B and K V L, Subramaniam (2017) Investigation of compression failure in brick masonry assemblies made with soft brick. In: ICACMS – Volume 2, September 2017, IIT Madras.
7. Kocherla, A and Narayanan, A and K V L, Subramaniam (2017) Monitoring progressive changes in cementitious materials using embedded piezo-sensors. In: Health Monitoring of Structural and Biological Systems, 26-29, March 2017, Portland; United States.
8. Singh, G V P B and K V L, Subramaniam (2017) Role of Reactive Alumina and Reactive Oxide Ratios on Strength Development in Alakaline Activation of Low-Calcium Fly Ash. In: 71st RILEM Annual Week & ICACMS, 03-08, September, 2017, Chennai, IIT Madras.
9. Gali, Sahith and K V L, Subramaniam (2017) Role of Steel Fibers in Shear Resistance of Beams in Arch Action. In: 71st RILEM Annual Week & ICACMS, 03-08,September, 2017, Chennai, IIT Madras.
10. Kamasani, Chiranjeevi Reddy and R, Jayakrishnan and K V L, Subramaniam (2017) Stress-Crack Separation Relationship for Macrosynthetic, Steel and Hybrid Fiber Reinforced Concrete. In: 71st RILEM Annual Week & ICACMS, 03-08,September, 2017, Chennai, IIT Madras.
11. Sahith Gali, and Subramaniam, K.V.L., “Shear behavior of steel fiber reinforced concrete using full-field displacements from digital image correlation,” MATEC Web of Conferences, 120. 04003. ISSN 2261-236X, Proceedings of the International Conference on Advances in Sustainable Construction, Materials & Civil Engineering Systems (ASCMCES-17), Sharjah, United Arab Emirates, April 18 – 20, 2017 (http://orcid.org/0000-0002-5995-0911 and doi.org/10.1051/matecconf/201712004003
12. Bhagath Singh, G.V.P., and Subramaniam K.V.L., Role of total reactive oxide ratios on strength development in activated fly ash. MATEC Web of Conferences, 120. 02014. ISSN 2261-236X, Proceedings of the International Conference on Advances in Sustainable Construction, Materials & Civil Engineering Systems (ASCMCES-17), Sharjah, United Arab Emirates, April 18 – 20, 2017
13. Kocherla, A., Narayanan, A., and Subramaniam, K.V.L., “Monitoring progressive changes in cementitious materials using embedded piezo-sensors,” SPIE’s 24th Annual International Symposium on Smart Structures and Material Systems + Nondestructive Evaluation and Health Monitoring, Portland, OR, Mar 25-29, 2017
14. Sahith Gali, and Subramaniam, K.V.L., “Shear Behavior of Steel Fiber Reinforced Concrete using Steel Fiber Concrete using Digital Image Analysis,” 9^th Rilem International Symposium on Fiber Reinforced Concrete, Vancouver, Canada, Sep. 19-21, 2016.
15. Chiranjeevi Reddy and Subramaniam, K.V.L., “Experimental Evaluation of Flexural Response and Post-Cracking Behavior in Macro-Synthetic Fiber Reinforced Concrete,” 9^th Rilem International Symposium on Fiber Reinforced Concrete, Vancouver, Canada, Sep. 19-21, 2016.
16. Arun Narayanan and Subramaniam, K.V.L., “Early age Monitoring of Cement Mortar using Embedded Piezoelectric Sensors,” Smart Structures/NDE 2016, SPIE, Las Vegas, NV, 20–24 March 2016.
17. Arun Narayanan and Subramaniam, K.V.L., “Damage Assessment in Concrete Structures using PZT patches,” 2^nd RN Raikar Memorial Intl. Conference & Banthia-Basheer Intl. Symposium on Advances in Science and Technology of Concrete, Mumbai, Dec. 18-19, 2015.
18. Bhagath Singh, G.V.P., and Subramaniam, K.V.L., “Concrete using Siliceous Fly ash at very High Levels of Cement Replacement: Influence of Lime Content and Temperature,” 2^nd RN Raikar Memorial Intl. Conference & Banthia-Basheer Intl. Symposium on Advances in Science and Technology of Concrete, Mumbai, Dec. 18-19, 2015.
19. Subramaniam, K.V.L., Nakhale, S., and S.G. Reddy, “Investigation of Crack Propagation in Macro-Synthetic Fiber Reinforced Concrete,” in the proceedings of the 6^th International Conference on Construction Materials: Performance, Innovations and Structural Implications, Vancouver, Canada, August 24-28. 2015.
20. Bhagath Singh, G.V.P., and Subramaniam, K.V.L., “Lime Activation of Siliceous Fly Ash at Very High Levels of Cement Replacement” in the proceedings of the 6^th International Conference on Construction Materials: Performance, Innovations and Structural Implications, Vancouver, Canada, August 24-28, 2015.
21. Subramaniam, K.V., Ultrasonic Measurement of evolving microstructure in Hydrating Mortar,” in proceedings of 5^th Biot Conference on Poromechanics, Vienna, Austria, July 12-13, 2013.
22. Subramaniam, K.V. and Andreopoulos, Y., Blast Response of Cellular Cement Foams: An Experimental Evaluation,” in proceedings of 5^th Biot Conference on Poromechanics, Vienna, Austria, July 12-13, 2013.
23. Carloni, C., and Subramaniam, K.V., “Application of Fracture Mechanics to Debonding of FRP from RC Members,” ACI SP 286-10, A Fracture Approach for FRP-Concrete Structures, Ed. C Carloni and Maria Lopez, May 2012, pp. 1-16
24. Subramaniam, K.V., “Continuous Monitoring of In-situ strength gain in concrete structures with ultrasonic Sensors,” in proceedings of The 7th International Workshop on Advanced Smart Materials and Smart Structures Technology, ANCRiSST2012, July 27-28, 2012, Bangalore, India.
25. Subramaniam, K.V., “Monitoring Internal Stress development and cracking in Concrete Structures,” in proceedings of The 7th International Workshop on Advanced Smart Materials and Smart Structures Technology, ANCRiSST2012, July 27-28, 2012, Bangalore, India.
26. Suriya Prakash, S., and Subramaniam, K.V., “Towards Damage-Assessment of RC Columns under Combined Loading Including Torsion using Smart Piezo-Ceramic Sensors,” in proceedings of The 7th International Workshop on Advanced Smart Materials and Smart Structures Technology, ANCRiSST2012, July 27-28, 2012, Bangalore, India
27. Subramaniam, K.V., “Ultrasonic monitoring of Capillary Porosity Evolution and Strength Gain in Hydrating Cement Pastes,” in Proceedings of International Symposium on Nondestructive Testing of Materials and Structures May 15-18, 2011 Istanbul, Turkey.
28. Subramaniam, K.V., “Ultrasonic Test Procedure for Monitoring Microstructure Evoluaiton and Early Strength Gain in Cement Paste,” in Advances in Concrete: An Asian Perspective, Proceedings of the 3^rd Asian Conference on Ecstasy in Concrete ACECON 2010, Chennai, India, 5-9 December 2010.
29. Wang, X., Subramaniam, K.V., and Lin, F., “Investigation of Microstructure Evolution in Cement Paste through Setting using Poroelastic Parameters obtained from Ultrasonic Wave Reflection” in the proceedings of 4^th Biot conference on Poromechanics, Columbia University, June 8-10, 2009.
30. Subramaniam, K.V., and Lee, J. (2009) “Continuous Ultrasonic Assessment of Elastic Modulus of Cementitious Materials through setting and Early Strength gain,” in ACI SP 259 -3, Special Publication on Transition from Fluid to Solid: Re-examining the Behavior of Concrete at Early Ages, ACI, Detroit, MI.
31. Nian, W., Subramaniam, K.V., and Andreopoulos, Y., “Energy Considerations during the Dynamic Compaction of Porous Media under blast loading,” in the proceedings of 4^th Biot conference on Poromechanics, Columbia University, June 8-10, 2009.
32. Subramaniam, K.V., (2006) “Ultrasonic Measurement of Early-Age Viscoelastic Properties of Cementitous Materials,” in Advanced Testing of Fresh Cementitious Materials, ATC Workshop Proceedings edited by H.W. Reinhardt, Stuttgart, August 3-4, 2006 (ISBN 3-980 8542 6-4).
33. Subramaniam, K.V., Ali-Ahmad, M., Ghosn, M., (2006), “Failure and Instability Analysis of FRP-Concrete Shear Debonding using stochastic approach,” in Proceedings of International Conference on Measuring Monitoring and Modelling Concrete Properties, July 3-8, 2006, Alexandroupolis, Greece, Edited by M. Gdoutos, Springer, Netherlands.
34. Subramaniam, K.V., Bi, M., (2006), “Corrosion of Steel in Cracked Concrete: Experimental Investigation,” in Proceedings of International Conference on Measuring Monitoring and Modelling Concrete Properties, July 3-8, 2006, Alexandroupolis, Greece, Edited by M. Gdoutos, Springer, Netherlands.
35. M, Bi and Subramaniam, K.V., (2006), “Corrosion of Steel in Cracked Concrete: Experimental Investigation Using External Polarization,” in NACE expo 2006, Paper 06357, NACE international, Corrosion 2006, Houston, TX..
36. Ali-Ahmad, M., Subramaniam, K.V., and Ghosn, M. (2005), “Environmental Degradation of Bond between FRP and Concrete: Impact on the Fracture Process and Parameters,” in the proceedings of the 3^rd International Conference on Construction Materials: Performance, Innovations and Structural Implications, Vancouver, Canada, August 22-24.
37. Bi, M., and Subramaniam, K.V., (2005). “Corrosion of Steel in Cracked Concrete: Experimental Investigation using External Polarization,” in the proceedings of the 3^rd International Conference on Construction Materials: Performance, Innovations and Structural Implications, Vancouver, Canada, August 22-24, 2005.
38. Ali-Ahmad, M., Subramaniam, K.V., and Ghosn, M. (2005), “Freeze-Thaw Degradation of FRP-Concrete Interface,” 7th International Symposium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures November 7-10, 2005 New Orleans.
39. Subramaniam, K.V., and Lee, J, (2005) “Investigation of Early age Material property development in cementitious materials using a one-sided ultrasonic Technique,” in the Proceedings of the Indo-US Workshop on High Performance Cement-Based Composites, Chennai, India, Material Science of Concrete, Special Volume, American Ceramic Society (ACerS), Edited by J. Biernacki, S.P. Shah, N Lakshmanan, and S. Gopalakrishnan, pp. 301-310.
40. Subramaniam, K.V., and Lee J., (2004) “Ultrasonic Assessment of Early-Age Changes in the Material properties of Cementitious Materials,” in the Proceedings of Advancing Concrete Through Science and Engineering, held in conjunction with the RILEM Spring Meeting, March 21-26, 2004
41. Ali-Ahmad, M., Subramaniam, K.V., and Ghosn, M. (2004), “Fracture Analysis of the Debonding between FRP and Concrete using Digital Image Correlation,” in the Proc., 5th Int. Conf. on Fracture of Concrete and Concrete Structures, V. Li, C. Leung, C. Willam, and S. Billington, eds., Vol. 2, Vail, Colo. 787–793.
42. Delatte, N., Chen, S., Parker, N., Agrawal, A., Mylonakis, G., Subramaniam, K.V., Bosela, P., McNeil, S., (2003), “Using NDE to evaluate the condition of subway tunnel systems,” Forensic Engineering, Proceedings of the Congress, p 329-340.
43. Subramaniam, K.V., Popovics, J.S., and Shah, S.P., (2002) “Fatigue Fracture and Crack Propagation in Concrete Subjected to Tensile Biaxial Stresses,” in American Concrete Institute Symposium Proceedings, “Concrete” Material Science to Applications”, ACI-SP 206, pp. 25-40.
44. Subramaniam, K.V., Popovics, J.S., and Shah S.P., (2000) “Nondestructive Monitoring of Early Age Concrete,” in Special Publication titled “Condition Monitoring of Materials and Structures,” Ed. F. Ansari, American Society of Civil Engineers.
45. Nims, D.K., Subramaniam, K.V., Parvin A., and Aktan, A.E., “Analysis of Elastomeric Bearings in an Instrumented Bridge System,” American Concrete Institute (ACI), SP-164, (B. Atkinson Ed.), 1996, pp. 177-196.

Book reviews or articles that assess others’ work:

1. Popovics, J.S. and Subramaniam, K.V., (1998), “Discussion of Free Vibrations of Thick Hollow Circular Cylinders from Three-Dimensional Analysis,” ASME Journal of Vibrations and Acoustics, Volume 120, Number 2, April, by S. Jo and Leissa, in ASME Journal of Vibrations and Acoustics

Other articles or contributed presentations:

1. Subramaniam, K.V., “In-situ Monitoring Techniques for Concrete Strength Gain,” University Transportation Research Center Fall 2002 Newsletter.
2. Subramaniam, K.V., Rapoport, J.R., Shah, S.P., “Nondestructive Technique for Monitoring Strength Gain in Concrete Structures,” in Cementing the Future, Center for Advanced Cement Based Materials, Fall 2000, Vol. 12, No. 1, pp. 4-5.
3. Subramaniam K.V., Weiss, W.J., “Just-in-Time Learning: A critical Review,” Academic News, Portland Cement Association, Spring 1997.

General Articles:

1. Subramaniam, K.V., “In-situ Monitoring Techniques for Concrete Strength Gain,” University Transportation Research Center Fall 2002 Newsletter.
2. Subramaniam, K.V., Rapoport, J.R., Shah, S.P., “Nondestructive Technique for Monitoring Strength Gain in Concrete Structures,” in Cementing the Future, Center for Advanced Cement Based Materials, Fall 2000, Vol. 12, No. 1, pp. 4-5

Invited presentations:

1. Invited Seminar, “Investigation of Microstructure Evolution in Cementitious Materials through Setting using Poroelastic Parameters obtained from Ultrasonic Wave Reflection,” Department of Civil Engineering and Engineering Mechanics, Columbia University, October 16, 2009.
2. Keynote Presentation, “Response of Concrete Subjected to Repeated Multi-axial Loading of High Amplitude,” to be presented at the 7th International Congress on Concrete Sustainability, held in Dundee Scotland, July 8-10, 2008.
3. Invited Presentation, “Design Issues in FRP-Concrete Debonding” Civil Engineering Department, University of Venice, July, 10, 2006.
4. Invited Presentation titled “Fracture Analysis of FRP-Debonding and Design Implications” DISTART, University of Bologna, Italy, July 12, 2006.
5. Invited Seminar titled “FRP Strengthening and Retrofit of Concrete Beams – Applications, Design Issues and Challenges,” ASCE – Metropolitan Section Infrastructure Group, Polytechnic University, Dibner Auditorium, Feb 22, 2006.
6. Presentation titled “Ultrasonic assessment of Early Age Viscoelastic Properties of Cementitous Materials,” at the Levich Institute, City College of New York, September 6, 2005.
7. Invited presentation titled “Fracture Analysis of the Debonding Failure in FRP Strengthened Concrete Beams,” Civil Engineering Department, Case Western Reserve University, June 1, 2004.
8. Invited presentation titled “Fracture Analysis of Debonding of FRP from Concrete,” Mechanical Engineering Department, City College of New York, Oct. 16, 2003.
9. Invited presentation at Master Builders Technologies, Cleveland, Ohio, for a seminar on “Assessing the early age concrete properties – a state of the art review”, June 1, 2002.
10. Invited presentation at a NSF sponsored workshop on Fracture testing of concrete held Nov. 20-21, 2001, in Captive Island, Florida.
11. Invited speaker in a symposium on “Materials and Infrastructure for Development” held at the ASCE-EMD conference in San Diego, CA, June 27, 2001.
12. “Determining Elastic Properties of Concrete using Vibrational Resonance Frequencies of Standard Test Cylinders,” presented at the American Concrete Institute Committee 228 on nondestructive testing of concrete, ACI spring convention 1999, Chicago.
13. “Modeling the Material Response of Airport Pavements Subjected to Aircraft Loading,” presented at University of South Florida, March 2000.
14. “Fatigue of Concrete under Biaxial Loading,” presented at University of Florida Gainesville, April 2000.

Primary Educational Interests:

Awards:

Courses Taught:

1. Concrete Technology (Undergraduate)
2. Reinforced Concrete Design (Undergraduate)
3. Design Studio (Graduate)
4. Prestressed Concrete Design (Senior undergraduate/Graduate)
5. Advanced Reinforced Concrete Design (Graduate)
6. Stability of Structures (Graduate – M.S/Ph.D.)
7. Applied Elasticity and Plasticity (Graduate – M.S./Ph.D.)
8. Condition Assessment and Rehabilitation of Structures (Graduate – M.S./Ph.D.)
9. Fracture Mechanics (Graduate – M.S./Ph.D.)

Publications related to teaching:

Active areas of Research

Currently active research in the following areas

• Fiber reinforced concrete for improving the ductility and load carrying capacity of concrete
  • Use of steel, Macropolypropylene and hybrid fibers for improving
  • Use of Macropolypropylene fiber reinforced concrete in high-cycle fatigue applications
  • Use of Macropolyproylene fibers in jointless pavements for improved restrained shrinkage performance
• Concrete for structural use using ambient-temperature alkaline activation of fly ash
  • Development of ambient cured geopolymer composites
  • Self-leveling high strength geopolymer composites
• Low-cost housing solutions
  • 3-D sandwich core panels for structural applications
  • Connections in precast low-weight high-performance prefabricated systems
• Alkali activated fly ash for 3-D Printing Application
• Energy Efficient Materials for Building Construction
• Embedded sensors for active monitoring of Concrete Structures
  • PZT sensors for use of monitoring strength gain in concrete
  • PZT sensors for determining internal stress development in concrete
  • Embedded sensors for local-global monitoring of concrete structures
• Low-Energy Hydraulic Cement using Post-Industrial Waste
• Durability of concrete with Alkali-activated fly ash
• Seismic Performance of low-strength Masonry

Currently active research in Industrial Applications

• Use of paper tubes in construction of light-weight structures
• Evaluation and Development of stay-in-place formwork for rapid construction
• Jointless slabs for use in industrial floors and high-speed train using fibers

Current Funded Projects:

Project Title: Development of Integrated 3-D reinforced sandwich structural panels for rapid construction of building systems

Agency: Uchchatar Avishkar Yojana, Ministry of Human Resource Development

Amount: Rs. 10,200,000 ($ 145,000)

Role: Principal Investigator

Duration: 2018-2021

Description: Rapid construction technology which provides large built up space with minimal labor requirement while ensuring the requisite strength, structural integrity, durability, thermal and acoustic comfort is the order of the day. This is particularly required for developing housing solutions and for providing for the demand of commercial space in rapidly urbanizing India. Industrialized building systems in which components are prefabricated at site or in a factory and are assembled to form a complete structure with minimum in-situ construction, are destined to provide a solution to this multi-dimensional problem. The buildings constructed using this alternative method of construction have a shorter construction time with the additional advantage of labour saving. This proposal is developed considering this critical need. In this proposal, IIT Hyderabad (IITH) and Beardsell Limited are working together to test, evaluate and standardize the deployment of rapid construction technology using sandwich core panels with prefabricated reinforcement.

Project Title: Sustainable Engineered Cellular Geopolymer Masonry for Improved Building Envelope Performance

Agency: I-PHEE Program, Department of Science and Technology

Amount: Rs. 6,569,200 ($ 95,000)

Role: Principal Investigator

Duration: 2016-2019

Description: The outcome of the work will result in the development of cellular geoploymer masonry blocks for use in construction using fly ash, with minimal processing energy (hence a low carbon footprint). The use of fly ash as the only precursor raw material for producing the new material suitable for use in construction offers the potential for environmental beneficiation through the large-scale effective use of waste material from industrial and post-consumer utilization, disposal of which has become a challenge. Additionally, the inherent benefits of enhanced thermal comfort and internal environment through superior attenuation of noise make it suitable for use as a building material.

Project Title: Embedded Smart Sensor Design for Internal Stress and Damage Detection in Concrete

Agency: SERB, Department of Science and Technology

Amount: Rs. 3,672,000 ($ 53,5000)

Role: Principal Investigator

Duration: 2014-2018

Description: The central idea of this proposal is to pursue the conceptual development of an embedded sensor system, which allows for simultaneously monitoring the level of internal stress and the associated damage in concrete. It is proposed to integrate information from multiple embedded sensing elements. The methodology for inferring the level of internal stress from measured physical strains in the embedded sensing elements will be developed using the concepts of micromechanics. In addition, embedded Piezoelectric based PZT smart sensors will be used to monitor the development and progression of internal damage due to the internal stresses. The outcome of the proposed research will form the basis for designing a sensor system suitable for internal stress measurement and damage quantification in concrete structures.

Project Title: Center of Excellence in Sustainable Urban Development

Agency: Ministry of Human Resource Development

Amount: Rs. 40 million ($ 6 million)

Role: Center Coordinator and PI

Duration: 2014-2020

Description: Funding has been provided to establish a Center of national/international importance in the area of sustainable urban development. The Center aims to promote multidisciplinary research and training in new and emerging technologies in the areas of water, sustainable infrastructure, clean environment, smart materials and sanitation that promote sustainable development. We will also explore communication and sensor technologies for future cities and Sociology of Digital Societies.

Projects Completed

Projects completed in India

Project Title: Development and evaluation of self-curing, User friendly geopolymers for structural applications

Agency: Fly Ash Mission, Department of Science and Technology

Amount: Rs. 8,900,000 ($ 130,000)

Role: Principal Investigator

Duration: 2013-2016

Project title: Innovation Hub on Cyber Physical Systems

Project duration: 2012-2016

Agency: Department of Information Technology

Amount: Rs. 176.0 million ($ 4 million)

Role: Co-PI (in a multi-departmental Center)

Description: Funding has been provided to establish a Center of national/international importance for innovation, research, and development in the newly emerging area of Cyber-Physical Systems. There are several subcomponents dealing with Green ICT, Smart grids, Pervasive health care, Intelligent Transportation system, Green buildings and data centers, humanoid robots and structural health monitoring. The specific part handled by the applicant deals with sensing and sensor networks for infrastructure health monitoring.

Projects completed outside India

Previously several projects have been completed through funding from different sources in the U.S.A. A listing of some of the completed projects is given below.

1. Federal Highway Administration (FHWA), “Green Advanced Coatings for Application on Steel Structures and Bridges,” (2009-2012)
2. New York State Department of Transportation (NYSDOT), “Effects of Overweight Vehicles on NYSDOT’s Infrastructure,” (2008-2010)
3. National Science Foundation (NSF), “Blast Mitigation using Controlled Low-strength Cementitious Materials” (2008-2011)
4. Army Research Office (ARO), “Damage Detection and Visualization Systems for High-Speed Transient Events” (2007-2008)
5. New York City Department of Transportation (NYCDOT), “Innovative Bridge Research and Construction,” (2005 – 2010)
6. Army Research Office (ARO), “Blast Mitigation using Low-Strength Porous Materials and Fiber Reinforced Polymers,” (2004-2007)
7. National Science Foundation (NSF), “Model-Based Microstructure Evaluation of Hydrating Cementitious Materials: Development of a Test System and Experimental Investigation”, (2003-2009)
8. New York State Energy Research and Development Agency “Application of FRP repair technology for Repair of Transportation Infrastructure,” (2001 – 2003)
9. Air Force Office of Sponsored Research (AFOSR), “Acquisition of Instrumentation for Material Characterization and Damage Quantification of Materials and Systems Laboratory at the City College of New York” (2001 –. 2003)
10. New Jersey Department of Transportation (NJDOT) “Smart Bridges” (2001- 2002)
11. New Jersey Department of Transportation (NJDOT) “Manual for Bridge Scour Counter Measures,” (2003-2005)
12. New York State Department of Transportation “Concrete Bridge Deck Material Properties,” (2003-2008)
13. New York State Department of Transportation, “Instrumented Smart Bridge Bearing Systems” (2003-2008)

Ph.D. Students (current):

Past Mtech (3 year with thesis) Advisees:

Currently: Pursuing Ph.D. at University of Tokyo

Currently: Pursing Ph.D. at I.I.T. Hyderabad

Past Mtech (2 year with thesis) Advisees:

1. Sahith Gali (2012), Thesis: Investigation of Fiber Reinforced Cementitious Matrix composite wrapped stack bonded brick masonry under compressive loads
2. Faraz Ahmad (2012), Thesis: Investigation of High volume Fly Ash Concrete (Currently – Ph.D. Student at I.I.T. Roorkee)
3. Bhagath Singh G.V.P. (2013), Thesis: Investigation of Activation in High Volume Fly Ash (Currently – Post-Doctoral Fellow at I.I.T. Hyderabad)
4. Nikhil Kulkarni (2013), Thesis: Blast Analysis of Concrete Structural Elements Considering Material Strain Rate Effects (Currently – Senior Engineer at Dipak Kulkarni Structural Engineers
5. Suraj Nakhale (2014), Thesis: Behaviour of Structural Polypropylene Fiber reinforced Concrete
6. Natasha Simon (2014), Thesis: Numerical Evaluation of Blast Response of Concrete
7. Anaz A. (2014), Thesis: Impedance-based Damage Measurement in Concrete using Bonded PZT patches
8. Chiranjeevi Reddy (2015), Thesis: Cohesive Crack growth in Macro-synthetic Fiber Reinforced Concrete (Currently – Ph.D. student in I.I.T. Hyderabad)
9. Jayakrishnan R. (2016), Thesis: Early-age Fracture Response of Concrete with Hybrid Steel and Macro-synthetic Polypropylene Fiber Blends (Currently – Design Engineer, Kirby building Systems India Pvt. Ltd.)
10. James Jose (2016), Thesis: Fracture Behaviour of Hybrid Synthetic Fiber Reinforced Concrete (Currently – Structural Design Engineer, Aarvee Associates Engineers & Consultants Pvt Ltd.)
11. Drishan Sharma (2017), Thesis: Shear Behavior of Steel Fiber Reinforced Self Compacting Concrete (Currently – Structural Design Engineer, Covey)
12. Silpa Soma (2018), Thesis: Influence of Fiber Dispersion and Pullout on Cohesive Response of Fiber Reinforced Concrete (Currently – Structural Design Engineer, Transportation Division, Larson and Toubro Ltd.)
13. Sai Supraj Reddy (2019), Thesis: Flexural response of 3-D reinforced concrete sandwich panels with EPS Core (Currently – Design Engineer,  Principle ACS)

Past MS (with thesis) Advisees:

1. Vahid Kamyab (2008), Thesis – Effect of Porous Materials on Shock and Blast Mitigation (co-mentor, M.S. in Mechanical Engineering, graduated in June 2008, currently PhD student at Delft University, Netherlands)
2. Hadi Kamyab (2008), Thesis — “Restrained shrinkage cracking in HP concrete used by NYSDOT” (Ph.D program at Laboratory of Construction Materials, Swiss Federal Institute of Technology, Ecole Polytechnique Federale De Lausanne (EPFL), Lausanne, Switzerand)
3. Nay Naing (2007), Thesis — “Investigation of FRP-Concrete Debonding using Acoustic Emission” (Associate, Goldstein and Assoc.)
4. Marco Frias (2006), Thesis — “Concrete Deck Material Properties” (Principal Engineer at New York City Department of Buildings – Forensic Engineering Unit)
5. Jaejun Lee (2005), Thesis –“Ultrasonic monitoring of Early Age Concrete,” (Assistant Professor, Chonbuk National University, Republic of Korea)

Masters Project:

1. Gerasapoulos, “Predicting the Deflections of Progressively Cracking Prestressed Concrete Beam,”
2. Morales, “Deflections in Progressively Cracking RC Beam”
3. Bun Hee Wong, “Smart Bridges – Concept and Instrumentation,”
4. Kostandin Qosja, “Corrosion in Bridge Elements”

Masters Thesis (International Exchange/ Collaborations):

Co-mentored with Prof. Claude Boutin (ENTPE)

Co-mentored with Prof. Marco Savoia (University of Bologna) “>

Awards and Recognitions