Raj, S., Subramaniam, K.V.L., and Jain, P.K. (2025). "Fire-Resistant Composite Material Incorporating Excalating Carbon Forms in Foamed Concrete." India Patent Application No. 202541090556. Published on 24.10.2025.
Aidhen, I.S., Subramanyam, A., Raj, S., and Ramamurthy, K. (2024). "Unsaturated anacardate based foaming agent(s) for the preparation of foam concrete." India Patent No. 530064. Granted on 25.03.2024. (Main inventor)
Paritala, S., Raj, S., Singh, P. R., and Subramaniam, K. V. (2025). Designing 3D printable concrete by integrating the influence of aggregate characteristics. Materials and Structures, 58(8), 1-21. https://doi.org/10.1617/s11527-025-02782-y
Raj, S. and Ramamurthy, K. (2024) “Classification of surfactants and admixtures for producing stable aqueous foam.” Advances in Colloid and Interface Science. Vol. 331, 103234, pp 1-17. https://doi.org/10.1016/j.cis.2024.103234 (Elsevier, SCI, Impact Factor - 16, Cite Score - 28.5, H Index - 224)
Raj, S. and Ramamurthy, K. (2023). “Physical, hydrolytic, and mechanical stability of alkali-activated fly ash-slag foam concrete.” Cement and Concrete Composites. Vol. 142, 105223, pp 1-13. https://doi.org/10.1016/j.cemconcomp.2023.105223 (Elsevier, SCI, Impact Factor - 10.8, Cite Score - 18.7, H Index - 212)
Raj, S., Krishnan, J. M., and Ramamurthy, K. (2022). “Influence of admixtures on the characteristics of aqueous foam produced using a synthetic surfactant.” Colloids and Surfaces A: Physicochemical and Engineering Aspects. Vol. 643, 128770, pp 1-13. https://doi.org/10.1016/j.colsurfa.2022.128770 (Elsevier, SCI, Impact Factor - 4.9, Cite Score - 8.7, H Index - 195)
Raj, S., Rai, A. K., and Havanagi, V. G. (2018). “Suitability of stabilized copper slag and fly ash mix for road construction.” World Journal of Engineering. Vol.15, Issue 3, pp 336-344. http://dx.doi.org/10.1108/WJE-08-2017-0220 (Emerald, ESCI, Impact Factor – 1.4, Cite Score – 4.2, H Index - 23)
Raj, S., Mohammad, S., Das, R., and Saha, S. (2017). “Coconut fibre-reinforced cement-stabilized rammed earth blocks.” World Journal of Engineering. Vol. 14, Issue 3, pp 208-216. http://dx.doi.org/10.1108/WJE-10-2016-0101 (Emerald, ESCI, Impact Factor – 1.4, Cite Score – 4.2, H Index - 23)
Das, R., Raj, S., and Muthukkumaran, K. (2025). Enhancing long-term durability of air injection induced partially saturated soils using xanthan gum. GEOVADIS, 141.
Paritala, S., Singh, P.R., Yadav, S., Raj, S., and Subramaniam, K.V.L. (2024). “Evaluation of the influence of aggregate type and paste rheology on concrete printability.” 18th NCB International Conference & Exhibition on Cement, Concrete and Building Materials, New Delhi, India, Volume 3, pp 427-434.
Sivaramnaik, M., Raj, S., and Subramaniam, K.V.L. (2024). “Influence of fly ash-based aqueous nano-silica on strength and phase evolution in cement paste.” 18th NCB International Conference & Exhibition on Cement, Concrete and Building Materials, New Delhi, India, Volume 3, pp 53-61.
Tripura, D. D., Raj, S., Mohammad, S., and Das, R. (2018). “Suitability of recycled aggregate as a replacement for natural aggregate in construction.” 2nd DSCS Workshop, Moscow, Russia, ACI Symposium Publication, American Concrete Institute, Volume SP-326, pp 37.1-37.10. http://dx.doi.org/10.14359/51711019 (Scopus)
Raj, S. and Ramamurthy, K. (2023). “Enhancing the stability of pre-formed aqueous foam for foamed geopolymer production.” TLC2 Young Researchers Symposium, Chennai, India. (Poster Presentation)
Raj, S., Mohammad, S., Das, R., Saha, S., & Tripura, DD (2016). “Low-Cost Housing Models for urban and rural areas using Rammed Earth Technique.” National Design Competition on low-Cost Housing Models for Urban & Rural Areas, Government of Uttar Pradesh, India. (Technical Report)
Raj, S. (2024). “Engineering Sustainable Foam Concrete: From Aqueous Foams to Cellular Geopolymers” Department of Civil Engineering, IIT Patna, 15th October. (Research Talk)