《Tab.1 Physical and mechanical properties of cement》

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《纤维类型对高强高延性水泥基复合材料弯拉性能的影响（英文）》

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The cement used in the HS-HDCCs mixtures is P·I52.5 Portland cement.Its physical properties and chemical composition are listed in Tab.1 and Tab.2，respectively.The silica fume，w ith its chemical composition listed in Tab.2，has a silicon dioxide content of 95.2%，a loss of 1.04%on ignition，a density of 2 500 kg/m3，and a specific surface area of 22 000 m2/kg.The aggregate used is sieved river sand w ith a maximum grain size of 0.60 mm.A polycarboxylate-type high-performance w ater-reducing agent w ith a solid content of 40%is used along w ith ordinary tap w ater.