OSTO^® 3-6mm Carbon Negative ¹ Lightweight Aggregate. An innovative building material, OSTO^® has broad application, including use in concrete mixes, screeds and resin bound applications.

Earthshot finalist Low Carbon Materials’ flagship product, OSTO^®, is a carbon-negative lightweight aggregate.

An innovative building material, manufactured in the UK, OSTO^® has broad application potential, including use in concrete mixes, screeds and resin bound applications.

Durable, strong and high-performing, OSTO^® can be used to replace traditional aggregates, thereby greatly reducing the carbon footprint of projects in which it is used.

Within the built environment, depending on application and mix design, OSTO has the potential to transform traditional carbon positive building materials to become carbon neutral, or even carbon negative

¹ Product Declaration:
A life cycle assessment of OSTO^®to establish an Environmental Declaration confirms that at the point of manufacture 1kg of OSTO^® is equivalent to a saving of 0.86kg CO₂e

Prices shown per 10kg pack (Approx 13ltr) including VAT and delivery.

Pack size is smaller than that supplied on multi-pack pallet deliveries.

Granule Size: Approx. 3-6mm.

Density:
OSTO^® is a lightweight aggregate with a bulk density at point of supply of approximately 750 kg/m³.

Volume for volume OSTO^® is approximately half the weight of "normal" limestone or gravel aggregate, and is comparable in weight to industry standard "blown" lightweight aggregates which typically have higher carbon footprints.

Moisture Content:
As supplied 3-6mm OSTO^® is likely to contain a natural moisture content of approximately 10%.

Description:
OSTO^® is an innovative, fully patented, carbon negative engineered lightweight aggregate that is resistant to frost and will not break down in water.

OSTO^® is a porous aggregate with resistance to crushing comparable to established lightweight aggregates traded in the UK.

Application and Approval:
OSTO^® is primarily designed for bound applications.

Clients 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.

For unbound applications, clients should confirm that the material complies with relevant environmental requirements prior to use.

Composition:
OSTO^® is based on non toxic materials that are currently unrecyclable (October 2023) - thus contributing a new creative element to a circular economy.

Environmental Considerations:
OSTO^® diverts currently unrecyclable (october 2023) waste streams from incineration, resulting in its inherent benefit from avoided emissions.
As OSTO^® is approximately 50% the weight of "normal" aggregate, twice the volume can be safely transported, reducing vehicle movements both on and off highway.

Rocks in a Box^™ For protection and security your product will be shipped in a weatherproof pack within our easy-to-handle double walled cardboard box.

Boxes are delivered by national couriers. Please advise during checkout or contact our office if you have specific delivery requirements or concerns.

Both the inner plastic pack and the outer box can be recycled via normal household or industrial/commercial collections.

* Specialist Aggregates' Price Promise:
All prices shown include UK VAT and delivery to 90% of UK locations - Read More. - There are no hidden charges on checkout.

We export throughout Europe and Worldwide - please enquire for shipping rates.

Quick Contact:
WhatsApp your enquiry and images to 07484 022898

Specify: 3-6mm OSTO^® Carbon Negative Aggregate from Low Carbon Materials

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