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该文在文献 [1]的基础上 ,研究了浒泊山砂中粉末对混凝土抗压强度的影响 ,分别就相同水灰比 ,相近坍落度下 ,对混凝土抗压强度 ;劈裂抗拉、抗折强度 ;抗渗性 ;抗冻性 ;收缩和钢筋握裹力等与河砂混凝土进行了对比研究 ,对山砂混凝土的微观结构进行了分析。得出含粉末 10 %左右的山砂用于C35及以下的混凝土中是可靠的
Based on the literature [1], this paper studied the influence of the powder in the Baosha sand on the compressive strength of concrete, and studied the compressive strength, tensile strength and fracture toughness of concrete under the same water-cement ratio and similar slump respectively, Flexural strength, impermeability, frost resistance, shrinkage and bar bond strength of sand concrete were compared with that of river sand concrete. The microstructure of sand concrete was analyzed. It is concluded that about 10% of mountain sand containing powder is used in C35 and below concrete