GreenJams unveils Novastone: India’s first Cement-Free construction materials platform delivering up to 80% lower embodied carbon

New Delhi, February 11, 2026: GreenJams, a materials-science-led climate technology company, today announced the launch of Novastone, a new platform of high-performance, cement-free precast construction products designed to eliminate one of the largest sources of carbon emissions in the built environment, cement—while remaining fully cost-competitive with conventional concrete materials.

Cement production contributes nearly 8% of global CO₂ emissions due to energy-intensive kilns and unavoidable process emissions from limestone calcination. Despite decades of efficiency improvements, cement remains fundamentally carbon-intensive, making it one of the most difficult sectors to decarbonise. As construction activity continues to scale rapidly, particularly across emerging markets, eliminating cement wherever technically feasible has become essential to achieving real and timely emissions reductions.

Novastone addresses this challenge by completely removing Ordinary Portland Cement and replacing it with advanced mineral-activated systems, delivering up to 80% lower embodied carbon compared to conventional cement-based precast products. All Novastone products are supported by robust Life Cycle Assessments (LCAs), enabling projects that require verifiable and auditable embodied-carbon data—including institutional developments, ESG-linked financing, and green-certified buildings—to specify materials with confidence.

By enabling deep reductions in embodied carbon at the material level, Novastone helps projects secure 4–6 additional points across leading green building rating frameworks such as GRIHA, IGBC, and LEED. The platform is also CBAM-aligned, supporting developers and manufacturers preparing for increasingly stringent embodied-carbon disclosure and compliance requirements in global markets.

Novastone is powered by BINDR, GreenJams’ proprietary mineral-activated binder made using metallurgical slags and alkali salts. By eliminating clinker entirely, BINDR enables durable, scalable, cement-free concrete products without relying on offsets or future carbon capture technologies.

Unlike many low-carbon construction alternatives that come with cost or performance penalties, Novastone is cost-competitive with conventional cement concrete products, enabling large-scale adoption without a price premium and ensuring that climate and ESG benefits do not come at the expense of project economics.

Novastone is a growing platform of precast construction products for structural and non-structural applications, including masonry units, pavers, perimeter and boundary walls, precast wall systems, hollow-core slabs, and more. The product range continues to expand as GreenJams works with developers and institutions to replace cement across a widening set of construction use cases.

Designed, engineered and manufactured in India, Novastone represents Make in India innovation with global relevance—converting industrial by-products into ultra-low-carbon construction materials and helping lead the global shift away from conventional, carbon-intensive building systems.

“Decarbonising construction cannot rely on marginal efficiency gains, it requires a fundamental shift in materials. Novastone shows that this shift is already possible today. Our cement-free masonry units are priced in the ₹3,000 per cubic metre range, yet deliver up to 80% lower embodied carbon compared to conventional concrete. This is what scalable climate action in construction looks like” said Tarun Jami, Founder & CEO of GreenJams.

Novastone is currently available in Bangalore, Chennai, Hyderabad, Mumbai, Pune, and Visakhapatnam, with further geographic expansion planned.