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Influence of Polycarboxylate Superplasticizers with Different Functional Units on the Early Hydration of C(3)A-Gypsum

Influence of polycarboxylate superplasticizers (PCs) with different functional units on the hydration heat and hydration products of C(3)A-gypsum was investigated. Three kinds of PCs with different monomers were discussed. It was seen that PCs mainly shortened the induction stage of C(3)A-gypsum hyd...

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Detalles Bibliográficos
Autores principales: Hu, Kuangyi, Sun, Zhenping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6479831/
https://www.ncbi.nlm.nih.gov/pubmed/30959934
http://dx.doi.org/10.3390/ma12071132
Descripción
Sumario:Influence of polycarboxylate superplasticizers (PCs) with different functional units on the hydration heat and hydration products of C(3)A-gypsum was investigated. Three kinds of PCs with different monomers were discussed. It was seen that PCs mainly shortened the induction stage of C(3)A-gypsum hydration, and the amount of remaining gypsum was related to the duration of the induction stage. The second heat flow peak of the sample with PCs was higher than that of the blank. Moreover, PC intercalation occurred during the hydration.