Abstract: In recent years superplasticizer in engineering has been more widely used, the research is also changing at home and abroad. As lots of infrastructure projects are constructing in China now, the demand of superplasticizer was further increased. This paper briefly reviewed the development, production and application history of the superplasticizer, and introduced the mechanism of polycarboxylate superplasticizer and the role of superplasticizer at home and abroad. The purpose and significance of the second-generation polycarboxylate superplasticizer synthesized with allyl polyether was reviewed. While keeping the high strength, heat resistance, durability, weatherability and other excellent performance of the first generation of polycarboxylate superplasticizer, we improved the production process, and increased the solid volume. The paper also introduced the production processes of superplasticizer briefly, and focused on the investigation of the effects of feeding mode, ratio of AA to APEG, the number of EO, chain transfer agent SMAS, solid content on the effect of allyl superplasticizer, and compared the effect between the allyl superplasticizer and the first generation of polycarboxylate superplasticizer, Naphthalene superplasticizer with the cement slurry flow and the Concrete flow experiment.
Keywords: Superplasticizer; Polycarboxylate superplasticizer; Allyl superplasticizer;