•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?nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_nÌs*#@Z¢bbs.3c3t.comCÖÜùE_答:nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
水泥:300(1+5%)=315 kg/m3nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
水:nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
150 (1+5%)=157.5 kg/m3nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_配合比nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
(1)nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
单位用量表达方式:nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
水泥∶水∶砂∶石nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
315 ∶ 157.5 ∶ 600 ∶ 1200(kg/m3)nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
(2)相对用量表达方式nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
水泥∶砂∶石,W/C=nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
nÌs*#@Z¢bbs.3c3t.comCÖÜùE_nÌs*#@Z¢bbs.3c3t.comCÖÜùE_
1 ∶ 1.90 ∶ 3.81,W/C=0.50nÌs*#@Z¢bbs.3c3t.comCÖÜùE_