TAILORED PCE SUPERPLASTICISERS FOR HIGH-SPECIFICATION CONCRETES
Superplasticisers based on polycarboxylate ethers (PCE) are essential whenever the application requires a rugged concrete manufactured with a low binding agent content and a low w/c ratio. PCEs are comb-shaped polymers that can be individually adapted as necessary. The negatively charged polymers absorb to the surface of the cement, shifting its surface potential towards more negative values while the side chains create a form of spatial protection. Both properties increase the clearance intervals and mobility of the cement particles in the cement paste of fresh concrete. This leads to significantly higher water reduction and far greater plasticizing than encountered with conventional superplasticizers or plasticisers based on naphthalene or melamine condensates. MC manufactures advanced polymers in-house based on its own patented processes, enabling it to offer a wide range of PCE-based superplasticisers.