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中砂的细度模数为多少

更新时间: 2020-11-02 00:00:00     

中砂的细度模数为3.0mm~2.3mm,平均粒径为0.5mm~0.35mm;而且砂的细度模数是衡量人工砂质量的一个重要指标,直接影响到混凝土的和易性、强度、抗渗性及经济指标。中砂按照它们的形状,颗粒可分为球状或等轴状、盘状或板状、杆状或柱状以及刃状等类,按照滚圆程度,它们可分为棱角状、牛棱角扶、牛淡圆状和滚圆状等类。

关键词: 多少

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