Superplasticizers in the calcium sulfate system –
plasticizing action and influence on hydration
How do superplasticizers influence the hydration of calcium sulfate? Systematic investigations were used to compare the action of polycondensate and polycarboxylate superplasticizers with that of the latest dispersion technology from BASF – a comb polymer with phosphate groups. The addition of the superplasticizers was shown to obstruct not only the nucleation but also the crystal growth.