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利用钢珠代替部分碎石,硼玻璃砂代替部分河砂,采用矿粉、硅灰复合双掺技术,掺入高性能减水剂,配制防核辐射高性能混凝土,并对其抗冻性能、碳化性能、抗氯离子渗透性能及屏蔽性能进行分析。结果表明,利用钢珠、硼玻璃砂配制的C60防核辐射高性能混凝土,冻融循环300次,其质量损失3.4%,抗压强度损失24.3%,28d电通量为479C,56d电通量为314C,56d碳化深度为0.76mm,表观密度达3 221kg/m3,具有良好的耐久性性和屏蔽性能。
Using steel ball to replace part of crushed stone and borosilicate glass sand to replace part of river sand, slag powder and silica fume composite double-doping technique were mixed into high performance water reducing agent to prepare radiation-proofing high performance concrete and its frost resistance, carbonization Performance, resistance to chloride ion permeability and shielding performance analysis. The results show that the use of steel balls, boron glass sand prepared C60 radiation-proof high performance concrete, freeze-thaw cycles 300 times, the mass loss of 3.4%, the compressive strength loss of 24.3%, 28d flux 479C, 56d flux 314C, 56d depth of carbonization of 0.76mm, the apparent density of 3 221kg / m3, with good durability and shielding properties.