Study and preparation on viscosity poly carboxylic acid water reducing agent
ZHANG Xiaofang
Abstract：Viscosity poly carboxylic acid water reducing agent (PC-2) was synthesized by monomers including TPEG,AA,AM and Ethylene glycol dimethacrylate. The effects of the different side chain length,the dosage of AM and Ethylene glycol dimethacrylate on PC-2 performance were discussed. The experimental result showed that the water reducing agent had a optimized preparation condition at n(AA):n(TPEG-1000)=3.5:1.0,the dosage of new reductant,AM,Ethylene glycol dimethacrylate and 3-mercaptopropanoic acid was 0.15%,1.5%,2.5% and 0.5% of total mass respectively,n(H2O2):n(new reductant)=4:1. The slump retention and the effect of viscosity reduction were all better than regular polycarboxylate PC-1 by cases testing.
Keywords：polycarboxylate superplasticizercement paste fluidityviscosity reduction
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 64-66,149 )