| 摘要 |
Non-foaming cement compositions comprising a hydraulic cement, a low density filler, water, an organic polyisocyanate and an isocyanate-reactive organic compound, the said composition, containing by weight, 10 to 10,000 parts of filler, 10 to 75 parts of water and 11 to 5,000 parts of an organic polyisocyanate and isocyanate-reactive organic compound taken together per 100 parts of hydraulic cement, the polyisocyanate being used in excess with respect to the isocyanate-reactive compound for reaction with the water and the total amount polyisocyanate and isocyanate-reactive organic compound being greater than the amount of water present. These compositions set rapidly and provide strong, durable flooring surfaces.
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