Denka completes CO2-free fuel facility for CUCO concrete admixture

Denka has completed a CO2-free fuel supply and combustion facility that advances decarbonization of its special admixture production for carbon-negative CUCO concrete. The body also lists a CUCO-SUICOM half-precast floor slab applied domestically as a building structural member on 2026-07-06, and a CUCO earthquake-retrofit PCa concrete block developed with about 120% CO2 emission reduction and first applied at the Nagoya Center Building. Those items are summarized from the page's news list.

Key facts

Market context

CUCO is a special admixture used in concrete that is designed to absorb carbon dioxide during curing, which is the basis for marketing it as carbon-negative construction material. Demand for such products is driven mainly by construction and infrastructure, particularly precast components, building structural members, and seismic retrofitting, where contractors and developers are under growing pressure to report lower embodied emissions. Cement and concrete are energy-intensive, so the fuel used to produce admixtures and the carbon footprint of that process matter to specifiers who track whole-life emissions. Moves that cut the carbon intensity of an additive can help a supplier qualify for low-carbon procurement programs and differentiate it from conventional chemical admixtures, which compete mainly on performance and cost. For buyers and investors, the key variables are how quickly specifiers adopt low-carbon concrete and whether emissions claims hold up under independent accounting.

Source: official release on cuco-2030.jp. Summary and context written by Market Krystal.