题目内容
(请给出正确答案)
[单选题]
根据有关规定,浇筑式混凝土井壁施工时,脱模时的混凝土强度,采用滑升模板时和采用短段掘砌时分别应为()
A.0.5~2.5MPa;0.07~0.1MPa
B. 0.5~2.5MPa;0.7~1.0MPa
C. 0.05~0.25MPa;0.7~1.0MPa
D. 0.05~0.25MPa;0.07~0.1MPa
提问人:网友xuhandsome1
发布时间:2022-01-06
A.0.5~2.5MPa;0.07~0.1MPa
B. 0.5~2.5MPa;0.7~1.0MPa
C. 0.05~0.25MPa;0.7~1.0MPa
D. 0.05~0.25MPa;0.07~0.1MPa
A.宜为2~4m,不大于3.5mm
B.宜为2~4m,不小于3.5mm
C.宜为3~5m,不小于3.5mm
D.宜为3~5m,不大于3.5mm
A.≤1.2m,≥30mm,≤150mm
B. ≤1.2m,≥30mm,≥150mm
C. ≥1.2m,≤30mm,≤150mm
D. ≥1.2m,≥30mm,≤150mm
A.不宜超过1.2m,不应超过3.5mm
B. 不宜小于1.2m,不应小于3.5mm
C. 不宜小于1.2m,不应超过3.5mm
D. 不宜超过1.2m,不应小于3.5mm
A.不宜超过1.2m,不应超过3.5mm
B.不宜小于1.2m,不应小于3.5mm
C.不宜小于1.2m,不应超过3.5mm
D.不宜超过1.2m,不应小于3.5mm
A.0.5~2.5MPa;0.07~0.1MPa
B.0.5~2.5MPa;0.7~1.0MPa
C.0.05~0.25MPa;0.7~1.0MPa
D.0.05~0.25MPa;0.07~0.1MPa
根据有关规定,夜间浇筑混凝土施工时,振捣器产生的噪声不得超过限值()[Db(A)]。
A.55
B.60
C.65
D.70
A.缩短混凝土运输时间
B.隔热遮阳措施
C.喷水雾
D.在振捣混凝土时加冰水
E.台阶式浇筑法
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