【单选题】【消耗次数：1】
通常要求普通硅酸盐水泥的初凝时间和终凝时间( )
①
>45min和>10h
②
>45min和10h
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相关题目
【单选题】
基层施工气温应在（）°C以上，路面基层采用水泥稳定碎石。宜采用初凝时间和终凝时间较长（宜在（）h以上）的普通硅酸盐水泥、矿渣硅酸盐水泥或火山灰质硅酸盐水泥，强度等级不高于（）MPa，考虑偏差系数及（）%的保证率，水泥剂量（）。以下（）是正确的。
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③
6；6；35.5；93；5%~6%
④
5；6；32.5；95；4%~5%
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