| Abstrakt: |
PC1 polycarboxylic acid base solution with viscosity-reducing function was synthesized by using monomer of unsaturated capped polyether, acrylic acid, ethylene glycol dimethacrylate, hydrogen peroxide, Vitamin C,mercaptopropionic acid, and sodium hydroxide as raw material. Studies were conducted on the mechanism and sensitive factors of PC1 viscosity-reducing base solution. Further more, research was done on the application technology of compound preparation of PC1 to determine the impact on viscosity-reduction of ratios of PC1, retarding components,and other auxiliary material. Results show that the viscosity of high strength concrete can be effectively reduced when PC1 mother liquor is mixed with high water reducing mother liquor D, high slump retaining mother liquor G, sodium gluconate PA and air entraining agent Y5, which has good workability and has no effect on the strength of high strength concrete. The optimum mix proportion of PC1 mother liquor and D mother liquor is 7:3. The dosage of high slump retaining mother liquor G,retarder PA and air entraining agent Y5 depends on the concrete materials and construction requirements. [ABSTRACT FROM AUTHOR] |
