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OSTO® 
A lightweight aggregate made from waste

A high-performance, drop in lightweight aggregate that is made of waste products that would be incinerated.

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We prevent this waste being burnt which would immediately release harmful greenhouse gases into the atmosphere.

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SUSTAINABILITY FOOTPRINT

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Circular Economy

Our proprietary process transforms waste from one industry into a valuable resource for another.

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Ultra Low Carbon 

OSTO® ’s production is significantly lower carbon emissions compared to conventional lightweight aggregates like expanded clay, which are manufactured at high temperatures.

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CO2 Mineralisation

OSTO® absorbs carbon dioxide, converting it into a stable carbonate within the material matrix.

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Carbon Negative Impact

Additional carbon avoidance through preventing the incineration of a carbon intensive waste stream.

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CONCRETE MADE WITH OSTO®

OSTO® is designed to be a high performance sustainable lightweight aggregate for concrete.

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It is an alternative to traditional, carbon-intensive mineral lightweight aggregates.

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OSTO® can be used in any application a traditional lightweight aggregate can be. 

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Several high profile projects have been completed using OSTO® ​in concrete - these projects will be officially announced in the coming months. ​

MORE THAN JUST CARBON

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THERMAL PROPERTIES

OSTO® has been proven to improve thermal properties of concrete.

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DROP IN 

‍Little to no changes required to current manufacturing and construction processes.

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LIGHTWEIGHT

OSTO® is a lightweight aggregate offering transport and carbon savings compared to traditional heavier aggregates.

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STRENGTH

Has comparable strength to typical lightweight aggregates.

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Contact Us

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