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[不定项选择题]
《GB175-1999》中普通硅酸盐水泥的强度等级分为()。
A.32.32.5R。42.42.5R。52.52.5R
B.42.42.5R。52.52.5R。62.62.5R
C.27.27.5R。32.32.5R。42.42.5R
查看答案
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A.32.32.5R。42.42.5R。52.52.5R
B.42.42.5R。52.52.5R。62.62.5R
C.27.27.5R。32.32.5R。42.42.5R
A.32.5,32.5R。42.5,42.5R。52.5,52.5R
B.42.5,42.5R。52.5,52.5R。62.5,62.5R
C.27.5,27.5R。32.5,32.5R。42.5,42.5R
普通硅酸盐水泥中掺用非活性混合材料时最大掺量不得超过水泥质量8%。()
对于大体积混凝土工程最适宜选择()。
A普通硅酸盐水泥
B中、低热水泥
C砌筑水泥
D硅酸盐水泥