CarbiCrete Issues First Verified Carbon Removal Tons From CO2-Negative Concrete

Montreal-based CarbiCrete has issued its first carbon removal tons generated through its patented CO2-negative concrete technology, marking a milestone for carbon removal in the construction sector. The announcement was shared by 3Degrees, CarbiCrete's exclusive carbon markets partner, which works with the company to quantify, verify, and commercialize the environmental benefits generated by its concrete production process.

The removals represent one of the earliest issuances of carbon removal credits carrying a removal designation under Verra's VM0043 Methodology for CO2 Utilization in Concrete Production, version 1.1. The methodology allows projects to quantify carbon dioxide removals separately from greenhouse gas emission reductions, including those achieved by reducing cement use. The issuance demonstrates that carbon removal associated with concrete production can be quantified and verified under an established voluntary carbon market methodology.

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From Steel Slag to Carbon Sink

CarbiCrete's process replaces Portland cement, one of the most carbon-intensive materials in construction, with steel slag, an industrial byproduct of steelmaking. During production, captured CO2 is introduced into the concrete through a carbonation curing process, where it reacts with components of the slag and becomes mineralized within the concrete. This process contributes to the material's strength while permanently storing CO2 in the finished product.

CarbiCrete's patented technology is designed for integration into existing concrete products manufacturing plants, providing producers with an alternative to conventional cement-based concrete. According to the company, each tonne of concrete produced through its process results in approximately 150 kg of CO2 abatement and removal combined. This figure includes the climate benefits of avoiding cement-related emissions and storing captured CO2, rather than representing 150 kg of verified carbon removal alone.

Why This Milestone Matters

Cement production accounts for approximately 7% to 8% of global CO2 emissions, driven by the energy required for high-temperature manufacturing and the process emissions released when limestone is heated. Reducing cement use while incorporating captured CO2 into concrete offers a way to address emissions associated with construction materials. This is particularly relevant to companies seeking to reduce embodied carbon in buildings, data centers, commercial real estate, and infrastructure projects.

The first issuance also marks progress in connecting lower-carbon construction materials with the voluntary carbon market. Under Verra's VM0043 methodology, carbon removals and avoided emissions can be quantified separately, allowing buyers to distinguish between the two climate outcomes. For concrete producers using carbon mineralization technologies, verified credits may provide an additional revenue opportunity alongside sales of lower-carbon construction products.

In its announcement, 3Degrees described the issuance as a milestone in moving CarbiCrete's technology from carbon removal claims to verified outcomes. The company highlighted the importance of establishing measurable carbon removal in construction, a sector where reducing emissions from materials remains a significant challenge.

A Pivotal Year for CarbiCrete

The credit issuance follows a funding milestone announced in June 2026, when CarbiCrete secured CA$1 million through the second phase of the Innovative Solutions Canada Low-Carbon Construction Materials Challenge. The program is associated with Innovation, Science and Economic Development Canada (ISED) and the National Research Council of Canada (NRC), supporting Canadian technologies that can reduce emissions from construction materials.

The funding builds on CarbiCrete's earlier work developing paving product prototypes and will support expansion of its portfolio of decarbonized hardscape products. The company has also received separate commercialization support through ISED and NGen Canada to implement its technology at concrete manufacturing facilities in Quebec and Ontario.

According to CarbiCrete's June 2026 announcement, its technology was being deployed at Patio Drummond in Drummondville, Quebec, and Canal Block in Port Colborne, Ontario. These deployments provide a manufacturing pathway for cement-free concrete products using captured CO2. The first verified carbon removal issuance adds a carbon market component to CarbiCrete's commercialization efforts, demonstrating how permanent CO2 storage in construction materials can be accounted for under an established verification framework.

About CarbiCrete

CarbiCrete is a Montreal-based carbon removal technology company whose patented process enables the production of cement-free concrete using steel slag and captured carbon dioxide. The process combines avoided emissions from cement replacement with permanent CO2 mineralization in concrete products. Its technology is being deployed at concrete manufacturing facilities in Quebec and Ontario. CarbiCrete works with concrete producers to integrate its process into existing manufacturing operations, while 3Degrees serves as its exclusive carbon markets partner. Learn more at carbicrete.com.