Disperse reinforced concrete with polycarboxylate additive on a mechanically activated binder

Abstract

Abstract The article discusses the properties of disperse reinforced claydite concrete on mechanically activated slag-portland cement with the addition of polycarboxylate superplasticizer Relaksol-Super PC. The idea of making a high-mobile claydite concrete mix with a settling of concrete cone 45 to 50 cm is substantiated. Particular attention is paid to the study of the effect of mechanical activation of the binder on the kinetics of the increasing in the strength of claydite concrete. The results of researches indicate that introduction of basalt fiber into slag-portland cement together with mechanical activation of binder allows to increase the impact strength of concrete by almost 1.7-1.9 times in comparison with the reference and to provide frost resistance of concrete at least than 350 cycles of alternating freezing and thawing.