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[单选题]
砂浆初始稠度为80mm,静置30min后,测得其稠度为65mm,该砂浆分层度试验结果为()。
A.15mm
B.10mm
C.无效
查看答案
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A.15mm
B.10mm
C.无效
A.将砂浆装入分层度筒,静置30分钟后,用上节200mm砂浆倒出放在搅拌锅中搅拌1min,测得的稠度为S1。
B.将砂浆装入分层度筒,静置30分钟后,用上节200mm砂浆倒出放在搅拌锅中搅拌1min,测得的稠度为S2。
C.将砂浆装入分层度筒,静置30分钟后,待上节砂浆按规范处理完毕,随后用下节100mm砂浆倒出放在搅拌锅中搅 拌2min,测得的稠度为S1。
D.将砂浆装入分层度筒,静置30分钟后,待上节砂浆按规范处理完毕,随后用下节100mm砂浆倒出放在搅拌锅中搅拌2min,测得的稠度为S2。
A.15,2
B.30,2
C.30,3
D.15,3
A.30~50mm
B.50~70mm
C.60~80mm
D.70~90mm
A.30min~35min
B.30min~40min
C.40min~45min
D.40min~50min