Turn your concrete waste problem into value-added products
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© 2026 R2Crete. All rights reserved.
Turn your concrete waste problem into value-added products
Interested in knowing more? reach out to us.
Subscribe to our newsletter for updates
© 2026 R2Crete. All rights reserved.
Frequently Asked Questions
How do R2Crete aggregates and SCM perform?
R2Crete SCM has been tested and meets both Australian and International performance standards. R2Crete recycled aggregates have a much lower moisture absorption than other recycled aggregates so can replace higher levels of virgin aggregates in concrete mixes.
What is supplementary cementitious material (SCM)?
Supplementary cementitious materials are materials used in place of ordinary Portland cement when making concrete. Using alternative SCMs can result in more eco-friendly concrete, and also have material benefits such as improved strength, durability and curing times.
Common SCM's in Australia
Fly ash - fine powder removed from collection devices used to clean flue gases in black-coal burning power stations
Ground granulated blast furnace slag - waste material from operation of blast furnaces used for smelting iron ore
Amorphous silica - fine particulate matter from production of silicon metal or ferro-silicon alloys in arc furnaces
Engineering & Environment
R2Crete is a Melbourne-based engineering startup developing a process to recycle waste concrete into supplementary cementitious material (SCM) and high-quality aggregates for new concrete production. As cement is the most emissions-intensive component of concrete production, every tonne replaced by SCM directly reduces carbon impact.
R2Crete's eco-friendly supplementary cementitious material (SCM) and aggregates are high performance, cost-competitive and can provide significant environmental benefits to your next project.
Reduces the usage of ordinary Portland cement and virgin aggregates
Helps you meet your circularity and carbon reduction goals
Saves costs associated with waste concrete disposal
Transforming the Concrete Industry
through decentralised, scalable waste upcycling technology.
Transforming the Concrete Industry
through decentralised, scalable waste upcycling technology.
The scale of concrete usage
depletion of natural resources
the environmental problem
Over 14 billion cubic meters of concrete are produced every year
We produce more concrete than any other material on the planet.
8% of all carbon emissions result from cement, the key binding ingredient in concrete manufacturing.
2 billion tons of waste concrete are generated annually from construction and demolition activities. Most of this is downcycled to road and earthfilling applications.
Around 50% of all cement used in Australia is imported, and quarries in all major Australian cities are depleted.
Engineering & Environment
R2Crete is a Melbourne-based engineering startup developing a process to recycle waste concrete into supplementary cementitious material (SCM) and high-quality aggregates for new concrete production. As cement is the most emissions-intensive component of concrete production, every tonne replaced by SCM directly reduces carbon impact.
R2Crete's eco-friendly supplementary cementitious material (SCM) and aggregates are high performance, cost-competitive and can provide significant environmental benefits to your next project.
Reduces the usage of ordinary Portland cement and virgin aggregates
Helps you meet your circularity and carbon reduction goals
Saves costs associated with waste concrete disposal
Frequently Asked Questions
How do R2Crete aggregates and SCM perform?
R2Crete SCM has been tested and meets both Australian and International performance standards. R2Crete recycled aggregates have a much lower moisture absorption than other recycled aggregates so can replace higher levels of virgin aggregates in concrete mixes.
What is supplementary cementitious material (SCM)?
Supplementary cementitious materials are materials used in place of ordinary Portland cement when making concrete. Using alternative SCMs can result in more eco-friendly concrete, and also have material benefits such as improved strength, durability and curing times.
Common SCM's in Australia
Fly ash - fine powder removed from collection devices used to clean flue gases in black-coal burning power stations
Ground granulated blast furnace slag - waste material from operation of blast furnaces used for smelting iron ore
Amorphous silica - fine particulate matter from production of silicon metal or ferro-silicon alloys in arc furnaces
The scale of concrete usage
Over 14 billion cubic meters of concrete are produced every year
We produce more concrete than any other material on the planet.
depletion of natural resources
Around 50% of all cement used in Australia is imported, and quarries in all major Australian cities are depleted.
the environmental problem
8% of all carbon emissions result from cement, the key binding ingredient in concrete manufacturing.
2 billion tons of waste concrete are generated annually from construction and demolition activities. Most of this is downcycled to road and earthfilling applications.
