砂的细度模数计算公式

  • 砂的细度模数计算公式是?_百度知道

    展开全部. 一、砂的细度模数计算公式是:MX= [ (A0.15+A0.3+A0.6+A1.18+A2.36)-5A4.75]/ (100-A4.75) 二、砂按细度模数分为粗、中、细三种规格,其细度模数分别为:. 1、粗:3.7~3.1;. 2、中:3.0~2.3;. 3、细:2.2~1.6。. 细度模数不是细集料的级配参数。. 三

  • 砂细度模数 - 百度文库

    砂子的粗细按细度模数分为4级。. 粗砂:细度模数为3.7—3.1,平均粒径为0.5mm以上。. 中砂:纫度模数为3.0—2.3,平均粒径为0.5—0.35mm。. 细砂:纫度模板

  • 砂细度模数计算_百度文库

    砂细度模数计算. 砂的细度模数. (1)计算分计筛余百分率:. 总质量G=15+75+95+105+115+85+10=500(g). 可计算得分计筛余百分率分别为:.

  • 细度模数计算 - 百度文库

    细度模数计算公式 1、砂的细度模数按下式计算,精确到0.01: 2、例子: 称取砂子500g已知5.00(方孔4.75)㎜、2.50(方孔2.36)㎜、1.25(方孔1.18)㎜、0.63(方孔0.6)

  • 砂的细度模数计算公式 - 百度文库

    砂的细度模数 (等级模数)=Σ [Xi*Ni/ (ΣNi)]1/2 其中: Xi:表示粒度为 Xi 的孔径的球子的百分比; Ni:表示粒度为 Xi 的孔径的球子的数量; 三、砂的细度模数的计算步骤 1、收集并

  • 砂的细度模数计算公式是 - 百度经验

    砂的细度模数计算公式是 惠惜海 2022-07-29 1580人看过 Mx= (A2+A3+A4+A5+A6-5A1)/ (100-A1)。 弄懂两个概念 1、什么是砂?粒径小于4.75毫米的岩石颗粒。 大于这个数值的

  • 细度模数计算公式是什么?_百度知道

    扩展资料:. 细度模数越大,表示砂越粗。. 普通混凝土用砂的细度模数范围在3.7~1.6。. 细度模数在3.7~3.1为粗砂,平均粒径为0.5mm以上;. 在3.0~2.3为中砂,平均粒径

  • 细度模数计算公式是什么?_百度知道

    普通混凝土用砂的细度模数范围在3.7-1.6,以中砂为宜,或者用粗砂加少量的细砂,其比例为4:1。 问题三:砂的细度模数计算公式是? 细度模

  • 砂的细度模数计算公式是?_百度知道

    2022年12月11日  1 混凝土中不同细度模数的砂对混凝土影响较大,与水结合状态不同,细度模数小,砂子的比表面积大,与水结合的多。 2 在用水量一定的情况下,导致混凝土

  • 砂细度模数计算-沙综合细度计算 - 百度文库

    砂细度模数计算-沙综合细度计算 A2=a1+a2=3%+15%=18%; A3=a1+a2+a3=3%+15%+19%=37%; A4=a1++a4=58%; A5=a1++a5=81%;

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