The compatibility between the superplasticizers and Portland cements

The compatibility between the superplasticizers and Portland cements

Superplasticer-Cement Interaction

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The compatibility between Portland cements and superplasticizers depends on the interaction between them. It is governed by the characteristics of the materials gained from the individual manufacture processes. The effects of the polycondensate- and polycarboxylate superplasticisers on the slump behavior of four Portland cements is studied. High dosages from the polycondensates create fluidity in cements with significant amounts of C3A- or aluminate phases and gypsum. The initial fluidity and slump retention are enhanced by the inert limestone surfaces added to Portland cement, by the glassy p...