Open AccessStudy on Admixture of Super Retarding Concrete
Author(s) -
XuJiale
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/621/1/012101
Subject(s) - retarder , maltodextrin , compressive strength , materials science , sodium , citric acid , foam concrete , sugar , composite material , chemistry , metallurgy , chromatography , food science , cement , spray drying
This paper mainly studies the influence of five kinds of retarding materials, such as sodium gluconate, sugar, citric acid, maltodextrin and sodium tripolyphosphate, on the setting time of concrete. Through gradient experiment of five different retarders, the influence of the amount of five kinds of retarders on the setting time and strength of concrete is obtained. The experimental results show that different kinds of retarders have different effects on the setting time and compressive strength of concrete. The use methods of super retarded concrete admixtures in 30 hours, 40 hours, 50 hours and 60 hours are obtained by orthogonal experiment.