建筑用砂是一種粒度小于4.75mm,細度模數MX 3.7~1.6的細集料。我國對于建筑用砂的使用有著嚴格的標準,下面,就給大家簡單的科普一下。 Construction sand is a kind of fine aggregate with particle size less than 4.75mm and fineness modulus MX 3.7-1.6. There are strict standards for the use of constructio...
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