Pioneering cementless concrete from C-Crete Technologies is poured for the first time in a building in Seattle

2023-07-18 23:43:44

San Leandro, Calif. (ots/PRNewswire) – The groundbreaking cement-free ready-mixed concrete is virtually free of CO2 emissions – it even absorbs CO2 over time, helping the construction industry to reach the net-zero goal

Presented with the first pour of its revolutionary cementless concrete in a commercial building in Seattle C-Crete Technologies a unique innovation in the construction industry. The sustainable alternative to Portland cement emits almost no carbon dioxide during its production and even absorbs CO2 from the air in the long term.

Portland cement is responsible for around 7 percent of global CO2 emissions. The use of the new building material can help to significantly reduce the environmental impact of the construction industry. For every tonne of C-Crete binder that Portland cement replaces, around 1 tonne of CO2 emissions is avoided. Also, a number of natural minerals and industrial by-products are used in the product to ensure raw material availability.

Approximately 60 tons of the cementless concrete was used in the foundations and shear walls of the Seattle project at 7200 Woodlawn. This is an adaptive repurposing of a 120-year-old historic brick building that used concrete for a seismic retrofit.

The concrete showed one excellent flowability and pumpability and achieved a compressive strength in excess of 5,000 pounds per square inch (psi). It exceeds the ASTM standard of approximately 4,000 psi for most residential, commercial and infrastructure concrete applications. It also meets other important industry standards, has excellent durability – such as resistance to freeze-thaw cycling, alkali-silica reactions, and exposure to chloride and acid – and is compatible with conventional concrete admixtures, allowing for easy integration into existing building practices.

“We are very excited to introduce our cementless concrete, which represents a game changer in sustainable construction,” said Rouzbeh Savary, PhD, Founder and President of C-Crete Carbon emissions can be drastically reduced. Because our product meets industry standards and is priced comparable to traditional concrete, it marks a new era in construction.”

C-Crete commissioned Heidelberg Materials, a global building materials and ready-mixed concrete company, to supply the cement-free concrete for this project.

Donald Davies is the owner of the Seattle building and chairman of Building Transparency, a non-profit organization dedicated to helping the construction industry understand the role of carbon sequestration climate change taken into account. “As a contractor who has been a civil engineer for 33 years and a leader in the field of low-carbon construction, I follow the discussions on many lower-carbon concretes,” said Davies into production. With C-Crete, this is already possible. Cement-free and low-carbon concrete is no longer a pipe dream. It is a reality, available today and it works. This project proves that its use is now possible.”

With the successful application of its concrete in Seattle, C-Crete is now poised to transform the built landscape nationwide and beyond. The company looks forward to working with architects, designers, general contractors, ready-mix concrete contractors, builders and infrastructure project decision makers to accelerate the adoption of its sustainable concrete.

About C-Crete Technologies: C-Crete Technologies is a leading materials science company that develops, manufactures and commercializes the next generation of infrastructure materials with extremely low or negative carbon emissions. With a continuous focus on environmental protection and technological innovation, C-Crete aims to address the global challenges of climate change while providing scalable materials for everyday use.

Denise Brehm