Cement Manufacturers' Association

55 Drawing from the U.S. ARPA-E HESTIA framework adapted to India’s context, this analysis identifies critical gaps in data availability, methodological guidance, and nanomaterial lifecycle assessment. Simultaneously,genuineprogressisevident:fiveDST CCU testbeds now operational with nanomaterial integration pathways under development, major manufacturers actively exploring carbon- storing and nano-enhanced materials through research partnerships, nanotechnology research initiatives at leading IITs generating peer-reviewed publicationsand technical expertise, andemerging policy frameworks (Green Building Code updates, BIS LC3 codification, nascent carbon market mechanisms) creating enabling conditions. By 2030: 30–50% cement sector emission intensity reduction (0.68 → 0.56 tonne CO 2 /tonne); 30–40% industry R&D integration of carbon-storing and nanomaterial LCA methodologies; initial nano- enhanced commercial products in market By 2035: 20–30 million tonnes annual CO 2 sequestration through nano-enhanced materials (equivalent to removing 4–6million cars annually); 40–50% of demonstration plants incorporating optimized nanomaterial systems; India positioned as global leader in low-carbon, nano-enhanced cement technology; 25–35% extended concrete service life reducing maintenance-related emissions by 2–4 million tonnes annually; ₹500– 1,000 crore nano-carbon credit market established By 2050: Achievement of carbon-neutral to carbon-negative cement production through systemic adoption of integrated carbon-storing and nanotechnology-enhanced technologies; concrete structures actively sequestering CO 2 over extended service lives (60–75 years) while providing superior performance and durability The path forward requires sustained commitment from the Cement Manufacturers Association as industry steward, government as policy enabler and nano-safety regulator, research institutions as innovationpartners,nanotechnologyenterprisesas suppliers, and cement manufacturers as adopters. With coordinated effort, India’s cement sector can pioneer a paradigm wherein nanomaterial- enhanced carbon-storing cements enable every tonne of cement produced to actively contribute to climate restoration while building sustainable, resilient infrastructure for the 21st century. REFERENCES 1. GCCA India & TERI. (2025). Decarbonisation Roadmap for the Indian Cement Sector: Net- Zero CO 2 Emissions by 2070. New Delhi. 2. Department of Scienceand Technology. (2025). India Launches First Cluster of CCU Testbeds in Cement Industry. National Technology Day Press Release, May 11, 2025. 3. NITI Aayog & MoEFCC. (2025). Workshop on CCUS in Indian Cement Sector: Technology Roadmap and Policy Framework. Government of India. 4. IPCC. (2023). Climate Change 2023 Synthesis Report. Geneva. 5. UNEP. (2022). 2022 Global Status Report for Buildings and Construction. Nairobi. 6. Bureau of Indian Standards. (2023). IS 18189:2023—Portland Limestone Calcined Clay Cement Specification. BIS, New Delhi. 7. Bautista-Gutierrez, K.P., et al. (2019). Recent Progress in Nanomaterials for Modern Concrete Durability. Nanomaterials, 9(11), 1560. 8. Chen, K., Qu, F., Sun, Z., Shah, S.P., & Li, W. (2024). Carbon Sequestration, Performance Optimization and Environmental Impact Assessment of Functional Materials in Cementitious Composites. Journal of CO 2 Utilization, 90, 102986. 9. Fu, X., et al. (2024). Storing CO 2 While Strengthening Concrete by Carbonating CementinSuspension.NatureCommunications, 15, 5274. 10. Liu, Y., etal. (2023). RoleofCarbonNanomaterials in Reinforcement of Concrete and Cement. Carbon, 202, 456–475. 11. Lodha Group & RMI India Foundation. (2025). Creating and SustainingMarket for LC3 Cement in India. Insight Brief, March 2025. 12. Mishra, A., et al. (2022). Carbon Sequestration in Graphene Oxide Modified Cementitious System. Construction and Building Materials, 347, 128563. 13. Sikora, P., et al. (2019). The Influence of Nano- SiO 2 on Carbonation Properties and Durability of Cementitious Systems. Nanomaterials, 9(8), 1120.