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Now available to purchase: LCM’s groundbreaking carbon-negative aggregate

OSTO®, a carbon-negative lightweight aggregate for use in a variety of applications including concrete, screeds and resins
  • Earthshot Prize finalist Low Carbon Materials (LCM) has launched OSTO®, a carbon-negative lightweight aggregate for use in a variety of applications including concrete, screeds and resins.

  • This innovative new product has the potential to transform carbon-intensive building materials to become carbon neutral or even carbon negative. 

  • Today’s announcement indicates significant progress towards the widespread use of LCM’s decarbonisation solution for the built environment. 

ClimateTech company Low Carbon Materials (LCM) has announced today that its flagship product, OSTO®, is available for purchase.

OSTO® is a carbon-negative lightweight aggregate that can be incorporated into a variety of concrete applications to lower its carbon emissions.

The innovative ‘drop-in’ product is available now to purchase via Specialist Aggregates. 

Buy OSTO® here.

What is OSTO®

OSTO® is a carbon-negative lightweight aggregate with broad application potential, including use in concrete mixes, screeds and resin-bound applications.

This high-performing aggregate can be used as a ‘like for like’ replacement for traditional lightweight aggregates. 

Technical information can be supplied on request. 

Why is OSTO carbon negative? 

OSTO® diverts materials that currently can't be recycled away from incineration, preventing these emissions from being produced. OSTO® captures CO2 from the atmosphere, permanently storing it in the aggregate. 

By reducing the reliance on traditional carbon-intensive lightweight aggregates, OSTO® enables construction firms to replace carbon-intensive materials in their value chain. 

Why is OSTO® important? 

Materials used in the construction of buildings represent around 9% of total global energy-related CO2 emissions (GlobalABC, 2022). 

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

OSTO® can be used as a 'drop-in' solution to replace traditional lightweight aggregates and, therefore, greatly reduce the carbon footprint of projects in which it is used.

What can OSTO® be used for? 

OSTO® is a carbon-negative lightweight aggregate with broad application potential, including use in concrete mixes, screeds and resin-bound applications.

Customers should confirm that the product's properties are suitable for their specific application prior to contract commencement.

Depending on performance and carbon targets, a notional replacement of OSTO® within bound construction materials is likely to be in the order of 3 to 15%. However, a testing ladder substituting OSTO® for aggregate is recommended to ensure that optimum design is achieved.

Do you want to decarbonise your construction project with our carbon-negative aggregate? - Purchase OSTO® here

For technical information and support, contact our technical support team: [email protected]