| 摘要 |
A cement repair material composition is provided for repairing thin concrete. The composition comprises, in weight percentages: fine aggregates, 50-80%; cement, 10-20%, said cement being selected from the group consisting of expansive hydraulic cement, gypsum cement, and magnesium phosphate cement; reinforcing fibers such as polyethylene, steel and fiberglass fibers, 1-5%; and a first water-reducing chemical additive, and a second shrinkage compensating chemical additive, a combined 0.01 to 5%.
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