•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?%>æÏºlUbbs.3c3t.com½:?¼²¾håñ
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水泥:300(1+5%)=315 kg/m3%>æÏºlUbbs.3c3t.com½:?¼²¾håñ
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150 (1+5%)=157.5 kg/m3%>æÏºlUbbs.3c3t.com½:?¼²¾håñ
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单位用量表达方式:%>æÏºlUbbs.3c3t.com½:?¼²¾håñ
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水泥∶水∶砂∶石%>æÏºlUbbs.3c3t.com½:?¼²¾håñ
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水泥∶砂∶石,W/C=%>æÏºlUbbs.3c3t.com½:?¼²¾håñ
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