•当初步配合比是300:150:600:1200(kg/m3)时,拌合混凝土进行工作性检验,发现坍落度偏低需增加5%的水泥浆,问调整后的混凝土配合比是多少?ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUßñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß答:ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
水泥:300(1+5%)=315 kg/m3ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
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水:ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
150 (1+5%)=157.5 kg/m3ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß配合比ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
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(1)ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
单位用量表达方式:ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUßñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
水泥∶水∶砂∶石ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUßñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
315 ∶ 157.5 ∶ 600 ∶ 1200(kg/m3)ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUßñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
(2)相对用量表达方式ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
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水泥∶砂∶石,W/C=ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß
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1 ∶ 1.90 ∶ 3.81,W/C=0.50ñÌYktÖp³$bbs.3c3t.comÕê(êh£EUß