Improving durability and supporting efficient resource use
Concrete admixtures can improve concrete durability, facilitate the use of recycled aggregates and support efficient production processes. Firstly they can improve the quality and performance of the concrete significantly, which extends its service life.
The addition of stabilizing and special water reducing admixtures also enables recycled aggregates to be used for the production of good quality concrete. Finally, the energy required to obtain high early strengths in precast concrete can be greatly reduced or even completely replaced by water reducing and accelerating admixtures.
Cut Carbon, Not Performance
The Future of Low CO₂ with Sika
Concrete is the second most consumed material on the planet after water, but traditional cement production contributes to around 7% of global CO₂ emissions. At Sika, we’re driving change with innovative solutions that lower the carbon footprint of concrete—without compromising performance.
Saving resources and reducing waste in concrete production
Given the high demand for concrete, the environmental performance of concrete production and application is an issue of increasing importance for the construction industry and regulators worldwide. Old concrete is being recycled more often, as it’s crushed and used as aggregates for production of new concrete. Material efficiency is further improved by on-site recycling of excavated material. Environmental benefits include:
- Re-using existing materials reduces extraction of new aggregate materials.
- Reduction of pollution caused by transporting waste to landfill sites.
Admixtures for quality concrete made with recycled aggregates
Recycling preserves natural resources of gravel and sand and reduces demolition waste that otherwise would be disposed in landfills.Sika admixtures allow the use of recycled concrete as an aggregate in concrete production, so that concrete of good quality and workability can be produced.