| 摘要 |
PURPOSE: A rapid curing polymer reformed cement concrete composition is provided to improve the workability and the durability of concrete by adding an acrylic binder with a specific composition, and an inorganic binder with regular Portland cement and a rapid curing agent. CONSTITUTION: A rapid curing polymer reformed cement concrete composition contains 4-25 wt% of inorganic binder with regular Portland cement and a rapid curing agent, 28-62 wt% of fine aggregate, 20-55 wt% of coarse aggregate, 0.1-5 wt% of water, and 0.1-15 wt% of acrylic binder. Portland cement and the rapid curing agent are mixed in a ratio of 25:75-85:15. The acrylic binder contains 78-99 wt% of acrylic emulsion, 0.1-15 wt% of styrene-acrylic emulsion, 0.01-15 wt% of butyl-acrylic emulsion, 0.01-3 wt% of acrylamide polymer, 0.01-10 wt% of acrylonitrile, and 0.01-3 wt% of process oil. The rapid curing agent contains 15-70 wt% of calcium sulfoaluminate, 0.1-25 wt% of aluminate, 0.01-20 wt% of gypsum, 0.01-20 wt% of blast furnace slag, and 0.01-20wt% of metakaolin. The rapid curing agent additionally contains 0.001-3 wt% of polyvinyl alcohol or polyacrylamide.
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