Concrete  

The choice of materials is central: local supplementary cementitious materials, the new green cement or free-clinker binder are a good choice. Sustainability can be improved by adding our Betocarb or Betoflow mineral products, which also help increase performance. 

Omya GCCs, depending on their fineness and type, influence the flowability, early-age (ie. 8 h with heat treatment) and 28 days’ strength. They also reduce the mixing water of the formulation, leading to higher efficiency of superplasticizers. 

In respect of the national concrete standards, the addition of ground calcium carbonate will minimize the clinker to cement ratio and maintain concrete handling performance and productivity.

Specific follow-up trials carried out in our and customers’ labs after the addition of fillers/commodity materials have proven that ground calcium carbonates of high purity and quality help the engineer to stabilize the quality of the formulation.

It’s important to check that the content is not higher than the value given by the current standards. Then, you want to focus on decreasing the level of strength, avoiding higher levels if not needed in your projects, and perhaps consider a new formulation.

Once you have selected your components, optimized your binder/superplasticizer couple, Omya’s ground calcium carbonate products can help you consolidate the desired result. 

Omya mineral plasticizer improves flow behavior with high compatibility with additives and admixtures used in the mix. Omya mineral accelerators accelerate compressive strength development.

Our products are CE marked and have an Environmental Product Declaration.  In some cases, the quality of the raw material and fineness of the mineral additive boost the whiteness of cement-based systems.