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CEMENT BINDER COMPOSITION, SUPER ULTRA HIGH STRENGTH PRECAST CONCRETE COMPOSITION AND METHOD FOR PRODUCING SUPER ULTRA HIGH STRENGTH PRECAST CONCRETE GOODS USING THE SAME
CEMENT BINDER COMPOSITION, SUPER ULTRA HIGH STRENGTH PRECAST CONCRETE COMPOSITION AND METHOD FOR PRODUCING SUPER ULTRA HIGH STRENGTH PRECAST CONCRETE GOODS USING THE SAME
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机译:水泥粘结剂组合物,超超高强度预制混凝土组合物以及使用相同的水泥生产超超高强度预制混凝土的方法
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摘要
PURPOSE: A cement binder composition is provided to maximize intensity of the concrete by mixing coarse cement, silica fume, blast furnace slag fine powder and anhydrite. CONSTITUTION: A cement binder composition contains 45-55 weight% of normal Portland cement, 15-25 weight% of silica fume, 15-25 weight% of blast slag fine powder and 2-8 weight% of anhydrous gypsum. The composition contains 3-8 weight% of SO_3. The normal Portland cement contains 30-70 weight% of coarse cement. A method for manufacturing the precast concrete comprises: a step of mixing cement binding material composition with water/binder in a ratio of 11-15 weight% and a step of performing non-compacting molding, atmorspheric steam curing and heat curing.
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