Home \ Faculty Details \ Blessen Skariah Thomas, Ph.D.
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  • Phone:

    +966-555146743

  • Email:

    bskariahthomas@pmu.edu.sa

  • Office No:

    S-024

  • Blessen Skariah Thomas, Ph.D.

  • Job Title :

    Associate Professor (Research)

  • College :

    College of Engineering


  • Department :

    Civil Engineering


Dr. Blessen Skariah Thomas is an Associate Professor (Research) in the Department of Civil Engineering at Prince Mohammad Bin Fahd University, Saudi Arabia. He holds a Ph.D. in Civil Engineering and has over a decade of experience in academic teaching, high-impact research, and institutional leadership. Prior to his current appointment, he served as a Ramanujan Fellow at the National Institute of Technology Calicut and held postdoctoral research positions at the Shanghai Jiao Tong University (China), Indian Institute of Science (India), and the American University of Sharjah (UAE). His academic career reflects strong international exposure and sustained contributions across India, China, the UAE, and Saudi Arabia.

Dr. Thomas’s research focuses on sustainable and advanced construction materials, including green and geopolymer concrete, recycled and waste-derived materials, bio-based and CO₂-sequestering composites, and durability performance of cementitious systems. He has published extensively in leading SCI-indexed journals, holds multiple granted international patents, and has successfully led major government-funded research projects. He is actively involved in postgraduate supervision, journal editorial activities, and peer review for top-tier journals. Through his research, mentorship, and professional service, Dr. Thomas contributes significantly to advancing sustainable infrastructure and low-carbon construction practices.

  • Ph.D. in Civil Engineering, National Institute of Technology, Jaipur, Rajasthan, India
  • M.E. in Construction Engineering and Management, Anna University, Chennai, Tamilnadu, India
  • B.Tech. in Civil Engineering, Mahatma Gandhi University, Kerala, India

  1. Poojalakshmi ES, Nagarajan P, Sudhakumar J, Thomas BS, Das S. Thermal resistance of diatomite-based one-part geopolymer: Microstructural and post-exposure durability analysis. Construction and Building Materials. 2025 Nov 14;499:144078.
  2. Nair PS, Gupta R, Agrawal V, Thomas BS, Pradhan SS, Imjai T. Bacterial wollastonite concrete for sustainable high performance construction. Scientific Reports. 2025 Oct 22;15(1):36854.
  3. Subramanian S, Davis R, Thomas BS. Durability Assessment of Engineered Geopolymer Composites under Freeze–Thaw Conditions. Journal of Cold Regions Engineering. 2025 Dec 1;39(4):04025035.
  4. Manhanpally N, Nagarajan P, Saha S, Das S, Thomas BS, Sithole T. Taguchi based optimisation of mix design parameters for M60 Grade GGBS-dolomite based geopolymer concrete. Sustainable Chemistry and Pharmacy. 2025 Oct 1;47:102181.
  5. Poojalakshmi ES, Nagarajan P, Sudhakumar J, Thomas BS. Impact of alkaline activator concentration on mechanical properties and microstructure of a ternary blended one-part geopolymer cement. Scientific Reports. 2025 Sep 30;15(1):33808.
  6. Shaju AC, Nagarajan P, Sudhakumar J, Thomas BS. Enhancing mechanical and microstructural properties of cement mortar using bio-based organic additives: A sustainable approach. Construction and Building Materials. 2025 Sep 19;492:142905.
  7. Manhanpally N, Nagarajan P, Saha S, Thomas BS. Influence of untreated and treated recycled coarse aggregates on engineering properties of slag dolomite geopolymer concrete. Scientific Reports. 2025 Jul 22;15(1):26649.
  8. Sunantha B., Nagarajan P, Sudhakumar J, Thomas BS, Sankaranarayanan P, Pitchaikani S, TV S. A comprehensive screening on the effect of Bacillus cereus and Vibrio natriegens bacterial consortia in cement mortar. Scientific Reports. 2025 Jul 1;15(1):1-26.
  9. Nair PS, Khan RA, Gupta R, Agrawal V, Somani P, Thomas BS. Enhanced durability and strength of bio-wollastonite fiber-reinforced concrete using MICP technique. Construction and Building Materials. 2025 Jun 13;479:141533.
  10. Nair PS, Gupta R, Agrawal V, Sithole T, Thomas BS. Residual mechanical, durability and microstructural performance of consortium bio-concrete under elevated temperatures. Results in Engineering. 2025 Jun 1;26:104716.
  11. Nair PS, Gupta R, Agrawal V, Somani P, Thomas BS. Efficacy of bio consortium on the strength and durability of self-healing concrete under elevated temperatures. Construction and Building Materials. 2025 Mar 21;468:140399.
  12. Arjun Raj PK, Joshi R, Sarath D, Nagarajan P, Thomas BS. Enhancing elevated temperature performance of alkali activated slag-dolomite concrete with Fly ash. Physics and Chemistry of the Earth, Parts A/B/C. 2025 Jun 1;138:103857.
  13. Subramanian S, Davis R, Thomas BS. Microstructure and residual strength properties of engineered geopolymer composites (EGC) subjected to high temperatures. Journal of Building Engineering. 2024 Nov 1;96:110637.
  14. Nair PS, Gupta R, Agrawal V, Thomas BS, Pereira SC, Jain A. Performance evaluation of bio-concrete: An analysis of biomineralization capabilities, microstructural and mechanical properties. Sustainable Chemistry and Pharmacy. 2024 Oct 1;41:101700.
  15. Subramanian S, Davis PR, Thomas BS. Sustainable engineered geopolymer composites: A study on the potential of fly ash, BOF slag, and iron ore tailings. Environmental Engineering Research. 2024 Oct;29(5).
  16. Shahzad Q, Abbas N, Akbar M, Sabi E, Thomas BS, Arshid MU. Influence of print speed and nozzle diameter on the fiber alignment in 3D printed ultra-high-performance concrete. Frontiers in Materials. 2024 Mar 12;11:1355647.
  17. Subramanian S, Davis R, Thomas BS. Pozzolanic potential of sustainable precursors for engineered geopolymer composites (EGC). Engineering Research Express. 2024; 6 (2), 025106
  18. Arjun Raj PK, Sarath D, Nagarajan P, Thomas BS. A Simplified Mix Design for GGBS–Dolomite Geopolymer Concrete Using the Taguchi Method. Iranian Journal of Science and Technology, Transactions of Civil Engineering. 2024 Feb 8:1-24.
  19. Subramanian S, Davis R, Thomas BS. Exploring the Potential of Geopolymer Binders: A Study on Basic Oxygen Furnace Slag and Fly Ash Mixes. Iranian Journal of Science and Technology, Transactions of Civil Engineering. 2024 Jan 24:1-21.
  20. Subramanian S, Davis R, Thomas BS. Full-scale static behaviour of prestressed geopolymer concrete sleepers reinforced with steel fibres. Construction and Building Materials. 2024 Jan 19;412:134693.
  21. Bhandary RP, Rao AU, Shetty PP, Blesson S, Thomas B.S. Application of Coffee Husk Ash as Partial Replacement of Fine Aggregate in Concrete. Sustainability. 2023 Sep 5;15(18):13328.
  22. Gong F, Jiang X, Gamil Y, Iftikhar B, Thomas B.S. An overview on spalling behavior, mechanism, residual strength and microstructure of Fiber Reinforced Concrete under high temperatures. Frontiers in Materials.2023;10:1258195.
  23. Blesson S, Rao AU, Bhandary RP, Shetty PP, Thomas BS. Comparative characteristics assessment of calcined and uncalcined agro-based waste ash with GGBS and its application in an alkali-activated binder system. Cogent Engineering. 2023 Dec 31;10(1):2220483.
  24. Abdalla JA, Hawileh RA, Bahurudeen A, Jyothsna G, Sofi A, Shanmugam V, Thomas BS. A comprehensive review on the use of natural fibers in cement/geopolymer concrete: A step towards sustainability. Case Studies in Construction Materials. 2023 Jun 22:e02244.
  25. Abdalla JA, Hawileh RA, Bahurudeen A, Jittin V, Kabeer KS, Thomas BS. Influence of Synthesized Nanomaterials in the Strength and Durability of Cementitious Composites. Case Studies in Construction Materials. 2023 Jun 7:e02197.
  26. Hawileh RA, Quadri SS, Abdalla JA, Assad M, Thomas BS, Craig D, Naser MZ. Residual mechanical properties of recycled aggregate concrete at elevated temperatures. Fire and Materials. 2023. https://doi.org/10.1002/fam.3168
  27. Hamada HM, Abed F, Katman HY, Humada AM, Al Jawahery MS, Majdi A, Yousif ST, Thomas BS. Effect of silica fume on the properties of sustainable cement concrete. Journal of Materials Research and Technology. 2023 May 19, 24: 8887-8908.
  28. Chang Q, Liu L, Farooqi MU, Thomas B, Özkılıç YO. Data-driven based estimation of waste-derived ceramic concrete from experimental results with its environmental assessment. Journal of Materials Research and Technology. 2023 May 1;24:6348-68.
  29. Thennarasan Latha A, Murugesan B, Thomas BS. Compressed Stabilized Earth Block Incorporating Municipal Solid Waste Incinerator Bottom Ash as a Partial Replacement for Fine Aggregates. Buildings. 2023 Apr 22;13(5):1114.
  30. Mareya M, Bahurudeen A, Varghese J, Thomas BS, Sithole NT. Transformation of rice husk modified basic oxygen furnace slag into geopolymer composites. Journal of Materials Research and Technology. 2023 May 1;24:6264-78.
  31. Akbar, M., Hussain, Z., Huali, P., Imran, M. and Thomas, B.S. Impact of waste crumb rubber on concrete performance incorporating silica fume and fly ash to make a sustainable low carbon concrete. Structural Engineering and Mechanics. 2023 Jan 1;85(2).
  32. Hamada, H., Alattar, A., Tayeh, B., Yahaya, F. and Thomas, B.S.. Effect of recycled waste glass on the properties of high-performance concrete: A critical review. Case Studies in Construction Materials. 2022 May 16:e01149.
  33. Katman HY, Khai WJ, Kırgız MS, Nehdi ML, Benjeddou O, Thomas BS, Papatzani S, Rambhad K, Kumbhalkar MA, Karimipour A. Transforming Conventional Construction Binders and Grouts into High-Performance Nanocarbon Binders and Grouts for Today’s Constructions. Buildings. 2022 Jul 19;12(7):1041.
  34. Tran, T.Q., Thomas, B.S., Zhang, W., Ji, B., Li, S. and Brand, A.S., 2022. A comprehensive review on treatment methods for end-of-life tire rubber used for rubberized cementitious materials. Construction and Building Materials. 2022 Dec 12;359:129365.
  35. Thomas, B.S., Yang, J., Bahurudeen, A., Abdalla, J.A., Hawileh, R.A., Hamada, H.M., Nazar, S., Jittin, V. and Ashish, D.K. Sugarcane bagasse ash as supplementary cementitious material in concrete–A review. Materials Today Sustainability. 2021;15:100086.
  36. Thomas, B.S., Yang, J., Mo, K.H., Abdalla, J.A., Hawileh, R.A. and Ariyachandra, E. Biomass ashes from agricultural wastes as supplementary cementitious materials or aggregate replacement in cement/geopolymer concrete: A comprehensive review. Journal of Building Engineering, 2021, 40: 102332
  37. Basu, P., Thomas, B.S., Gupta, R.C. and Agrawal, V. Strength, permeation, freeze-thaw resistance, and microstructural properties of self-compacting concrete containing sandstone waste. Journal of Cleaner Production. 2021, 305:127090
  38. Hamada, H.M., Thomas, B.S., Yahaya, F.M., Muthusamy, K., Yang, J., Abdalla, J.A. and Hawileh, R.A. Sustainable use of palm oil fuel ash as a supplementary cementitious material: A comprehensive review. Journal of Building Engineering 2021, 40: 102286.
  39. Basu, P., Thomas, B.S., Gupta, R.C. and Agrawal, V. Properties of sustainable self-compacting concrete incorporating discarded sandstone slurry. Journal of Cleaner Production. 2021, 281:125313.
  40. Shaban, W.M., Elbaz, K., Yang, J., Thomas, B.S., Shen, X., Li, L., Du, Y., Xie, J. and Li, L. Effect of pozzolan slurries on recycled aggregate concrete: Mechanical and durability performance." Construction and Building Materials 2021, 276: 121940.
  41. Hamada, H.M., Thomas, B.S., Tayeh, B., Yahaya, F.M., Muthusamy, K. and Yang, J. Use of oil palm shell as an aggregate in cement concrete: A review. Construction and Building Materials 2020, 265: 120357.
  42. Du, Y., Yang, J., Thomas, B.S., Li, L., Li, H., Shaban, W.M. and Chong, W.T. Influence of hybrid graphene oxide/carbon nanotubes on the mechanical properties and microstructure of magnesium potassium phosphate cement paste. Construction and Building Materials 2020, 260: 120449.
  43. Du, Y., Yang, J., Thomas, B.S., Li, L., Li, H. and Nazar, S. Hybrid graphene oxide/carbon nanotubes reinforced cement paste: An investigation on hybrid ratio. Construction and Building Materials 2020, 261: 119815.
  44. Nazar, S., Yang, J., Thomas, B.S., Azim, I. and Rehman, S.K.U. Rheological properties of cementitious composites with and without nano-materials: A comprehensive review. Journal of Cleaner Production 2020, 272: 122701.
  45. Mo, K.H., Thomas, B.S., Yap, S.P., Abutaha, F. and Tan, C.G. Viability of agricultural wastes as substitute of natural aggregate in concrete: a review on the durability-related properties. Journal of Cleaner Production 2020, 275: 123062.
  46. Yang, J., Shaban, W.M., Elbaz, K., Thomas, B.S., Xie, J. and Li, L. Properties of concrete containing strengthened crushed brick aggregate by pozzolan slurry. Construction and Building Materials 2020, 47: 118612.
  47. Thomas, B.S. Green concrete partially comprised of rice husk ash as a supplementary cementitious material – A comprehensive review. Renewable and Sustainable Energy Reviews 2018, 82: 3913-3923.
  48. Mehra, P., Kumar, S., Thomas, B.S. and Gupta, R.C. Analysis on the hazardous jarosite added concrete. Construction and Building Materials 2018, 191: 253-259.
  49. Arel, H.Ş. and Thomas, B.S. The effects of nano-and micro-particle additives on the durability and mechanical properties of mortars exposed to internal and external sulfate attacks. Results in Physics. 2017, 7: 843-851.
  50. Thomas, B.S., Kumar, S. and Arel, H.S. Sustainable concrete containing palm oil fuel ash as a supplementary cementitious material – A review. Renewable and Sustainable Energy Reviews 2017, 80: 550-561.
  51. Sharma, N.K., Kumar, P., Kumar, S., Thomas, B.S. and Gupta, R.C. Properties of concrete containing polished granite waste as partial substitution of coarse aggregate. Construction and Building Materials 2017, 151:158–163.
  52. Kumar, S., Thomas, B.S., Gupta, V., Basu, P. and Shrivastava, S. Sandstone wastes as aggregates and its usefulness in cement concrete- A Comprehensive review. Renewable and Sustainable Energy Reviews 2017, 81: 1147-1153.
  53. Thomas, B.S. and Gupta, R.C. A Comprehensive review on the applications of waste tire rubber in cement concrete. Renewable and Sustainable Energy Reviews 2016, 54: 1323-1333.
  54. Thomas, B.S., Kumar, S., Mehra, P., Gupta, R.C., Joseph, M. and Csetenyi, L.J. Abrasion resistance of sustainable green concrete containing waste tire rubber particles. Construction and Building Materials. 2016, 124: 906-909.
  55. Gupta, R.C., Mehra, P. and Thomas, B.S. Utilization of copper tailing in developing sustainable and durable concrete. ASCE Journal of Materials in Civil Engineering 2016, 04016274.
  56. Thomas, B.S., Gupta, R.C. Properties of High Strength concrete containing scrap tire rubber. Journal of Cleaner Production 2016, 113: 86-92.
  57. Thomas, B.S., Gupta, R.C. and Panicker, V.J. Recycling of waste tire rubber as aggregate in concrete:durability related performance. Journal of Cleaner Production 2016, 112: 504-513.
  58. Mehra, P., Gupta, R.C. and Thomas, B.S. Properties of concrete containing jarosite as a partial substitute for fine aggregate. Journal of Cleaner Production  2016; 120: 241-248.
  59. Mehra, P., Gupta, R.C. and Thomas, B.S. Assessment of durability characteristics of cement concrete containing jarosite. Journal of Cleaner Production 2016; 119: 59-65.
  60. Kumar, S., Gupta, R.C., Shrivastava, S., Csetenyi, L. and Thomas, B.S. Preliminary study on the use of quartz sandstone as a partial replacement of coarse aggregate in concrete based on clay content, morphology and compressive strength of combined gradation. Construction and Building Materials 2016; 107: 103-108.
  61. Thomas, B.S., Gupta, R.C. and Panicker, V.J. Experimental and Modeling studies on high strength concrete containing waste tire rubber. Sustainable Cities and Society 2015, 19: 68-73.
  62. Thomas, B.S. and Gupta, R.C. Long term behaviour of cement concrete containing discarded tire rubber. Journal of Cleaner Production 2015, 102:78-87.
  63. Thomas, B.S., Gupta, R.C., Mehra, P. and Kumar, S.Performance of high strength rubberized concrete in aggressive environment. Construction and Building Materials 2015; 83: 320-326.
  64. Thomas, B.S., Gupta, R.C., Kalla, P. and Cseteneyi, L. Strength, Abrasion and Permeation characteristics of Cement Concrete Containing Discarded Rubber Fine Aggregates. Construction and Building Materials 2014; 59: 204-212.
  65. Thomas, B.S., Damare, A. and Gupta, R.C. Strength and durability characteristics of copper tailing concrete. Construction and Building Materials 2013; 48: 894-900.

LinkedIN: https://in.linkedin.com/in/dr-blessen-skariah-thomas-905021b1

Google Scholar: https://scholar.google.co.in/citations?user=N6ZPrLQAAAAJ&hl

Scopus: https://www.scopus.com/authid/detail.uri?authorId=55838284800

ORCID: http://orcid.org/0000-0002-5882-0701

  • Associate Professor (Research) at Prince Mohammad Bin Fahd University Saudi Arabia from Jan 2026
  • Ramanujan Fellow (Scientist-D), National Institute of Technology Calicut, Kerala India from February 2022 to January 2026 
  • Visiting Research Fellow, American University of Sharjah, UAE from January 2021 to February 2022
  • Post Doctoral Research Fellow at Shanghai Jiao Tong University China from December 2019 to December 2021
  • Head of Civil Engineering Department, at Providence College of Engineering, Chengannur, Kerala from February 2017 to August 2019
  • Associate Professor Civil Engineering Department at Providence College of Engineering, Chengannur, Kerala from February 2017 to November 2019
  • Post Doctoral Research Fellow at Indian Institute of Science (IISc) Bangalore, India from August 2016 to February 2017
  • Assistant Professor, Jaipur National University, Jaipur, India from July 2015 to August 2016
  • Assistant Professor Civil Engineering at St Thomas College of Engineering and Technology, Chengannur, Kerala from March 2012 July 2012

  • Concrete Technology
  • Sustanable Engineering
  • Environmental Engineering

The research interests includes:

  • Sustainable and green concrete technologies

  • Geopolymer and alkali-activated cementitious materials

  • Recycled aggregate concrete and waste-derived construction materials

  • CO₂-sequestering and carbon-negative building materials

  • Bio-based and bio-mediated cementitious composites

  • Durability, microstructure, and long-term performance of concrete

  • High-performance and fibre-reinforced concrete composites

  • Circular economy approaches in construction materials

  • Low-carbon binders and alternative cementitious systems

  • Advanced concrete mix design, optimization, and performance modeling

Sl.no

Name of the Institution

Membership type

Membership number

1

The Institution of Engineers, India

Life Member

AM159828-5

2

Indian Concrete Institute

Life Member

11477

3

International Association of Engineers

Life Member

164832

4

Indian Science Congress Association

Life Member

L29214

5

Indian Society for Technical Education

Life Member

LM 111084