Open AccessCompatibility analysis of superplastisizers with different types of cements
Author(s) -
Serhii Tolmachov,
O. A. Belichenko,
Dmitrii Tolmachov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/907/1/012054
Subject(s) - superplasticizer , compatibility (geochemistry) , cement , durability , materials science , environmental science , composite material
The article considers the urgent issue of improving the quality and durability of road cement concrete. It is shown that the decrease of the quality of concrete mixtures and concrete is often due to incompatibility between cement and superplasticizer. This can happen if the same superplasticizer is used, but different cements of the same plant. This also happens if superplasticizers of the same type, but of different manufacturers, with the same cement are used. Therefore, it is important to quickly assess the compatibility of cement and superplasticizer at the stage of concrete mix design. The article proposes to evaluate the compatibility by changing the properties of cement paste without superplasticizer and with it. It is shown that compatibility can be established within a few hours. Based on the experiments, it was established which superplasticizers should be used for cements of a certain mineral composition.