Abstract

This article uses three ester monomers, hydroxyethyl methacrylate (HEMA), hydroxyethyl acrylate (HEA), and hydroxypropyl acrylate (HPA), mixed with 2% of the mass of the macromonomer to synthesize Polycarboxylate Superplasticizer (PCE), compared with the blank sample without esters. The GPC technology was used to investigate the influence of different ester monomers on the molecular weight and distribution of PCE and the polymer yield at low dosages. The cement paste and concrete tests were carried out for testing the performance of PCE. Experiments proves that HEMA affects initial dispersion performance at low dosage. The article concludes that HEA and HPA indeed played a slow-release effect at low content.

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