OSTO - A Carbon Negative Aggregate to Lower the Carbon Footprint of Concrete

The process involved in making concrete is responsible for 8% of the planet's CO2. After water, concrete is the most widely used substance on earth.

Decarbonising carbon-intensive materials is a huge challenge for the construction sector but is of vital importance, especially with net-zero targets on the horizon.

OSTO® is carbon negative and can lower the carbon footprint of concrete by:

(1) Avoidance
‍OSTO® is made of waste products that would be incinerated.

Low Carbon Materials prevents this waste being burnt which would immediately release harmful greenhouse gases into the atmosphere.

(2) Mineralisation
‍OSTO®  sequesters and stores CO2 in the aggregate, and therefore locks it within the resulting concrete permanently.

(3) Reduction
OSTO®  reduces the reliance on traditional carbon intensive lightweight aggregates, therefore, enables construction firms to replace carbon-intensive materials in their value chain.