straight cement concrete
... straight back chair 直背椅 straight cement concrete 纯水泥混凝土 straight cement 纯水泥 ...
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实验对比表明：与强度等级为32 . 5的纯水泥钢渣混凝土对比，掺入钢渣粉的砼强度略有降低，但能改善混凝土的和易性。
By test analysis compared with strength degree 32.5 of cement, strength of steel slag concrete is slightly decreased, but its fluidity is improved.
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