某一外加劑進(jìn)行檢測,所測數(shù)據(jù)列于下表,計算這一外加劑的減水率、泌水率比和3d的抗壓強(qiáng)度比并回答下述問題。(混凝土容重為2400kg/m3)
A.165% B.167% C.170% D.172%
A.47.4% B.48.0% C.48.6% D.49.0%
A.7.4% B.7.5% C.7.6% D.7.9%