CSIR-SERC Transfers Geopolymer Block Technology to a Rajapalayam Manufacturer
The transfer to Archana Blocks extends a cement-replacement process towards industrial use. Its ambient-curing approach is documented, while production volumes and measured emissions savings remain undisclosed.
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CSIR's Structural Engineering Research Centre in Chennai has transferred its geopolymer concrete-block technology to Archana Blocks of Rajapalayam, Tamil Nadu. The agreement, announced on 22 September 2026, connects an established laboratory process with another prospective industrial user.
The occasion was CSIR's 85th Foundation Day programme at the centre. Director N. Anandavalli and Archana Blocks proprietor K. Archana signed the agreement. The announcement establishes a technology-transfer milestone; it does not say that a new factory has begun commercial production.
Replacing the binder and changing the curing step
SERC's technical brochure describes blocks in which fly ash and ground granulated blast-furnace slag replace Portland cement. These industrial by-products provide the binder ingredients for the geopolymer process. The centre identifies building blocks, paving blocks, hollow blocks and lightweight blocks as possible products.
A distinctive feature of the documented process is curing at ambient temperature. SERC also says water is not required for curing. That qualification matters: it is not a claim that the entire manufacturing process consumes no water.
The brochure reports pilot-scale demonstration and describes an earlier non-exclusive transfer to Kiran Global Geocements. Archana's agreement should therefore be understood as a further transfer of an existing technology, rather than the first invention or first licensing of geopolymer blocks by the laboratory.
A transfer is the beginning of a manufacturing test
The practical significance lies in moving a materials recipe and process beyond a research organisation. A manufacturer still needs a reproducible product, consistent raw materials and evidence that the resulting blocks suit their intended application. These are useful questions for following the transfer through to production; the September announcement does not provide Archana-specific test results.
SERC's broader technology catalogue describes tailoring the process to available industrial by-products and providing technical documentation and training. Those capabilities explain the role a research centre can play in adoption, but they should not be treated as a disclosed list of terms in this particular agreement.
The public release gives no production capacity, sales target or quantified lifecycle-emissions reduction. Replacing Portland cement creates a reason to examine environmental performance; it does not, on its own, establish a particular percentage saving. Manufacturing data and independently assessed product performance will be the next evidence to watch.
Image: participants at the CSIR-SERC technology-transfer event. Credit: CSIR-SERC / PIB Chennai. The photograph records the agreement, not a production line.