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13问答网 > 土木工程材料题两道，立方体抗压强度，急急急

土木工程材料题两道，立方体抗压强度，急急急

2025-03-16 02:45:50

推荐回答（1个）

回答1：

五.1、某混凝土配合比：300:300×2.4:300×4.1:300×0.6=300：720：1230:180
施工配合比：300:720（1+0.02）：1230（1+0.01）：180-720×0.02-1230×0.01
=300:734:1242:153
五.2、27-1.645×4=20.42Mpa
20.42＞20满足C20
上页：fcu.0≥30+1.645×5=38.23Mpa
水灰比：W/C=48×0.46/（38.23+48×0.46×0.07）=0.56

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