單項(xiàng)選擇題對(duì)燒結(jié)普通磚、多孔磚含水率宜為().

A.8%~12%
B.12%~14%
C.10%-15%
D.10%-12%


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1.單項(xiàng)選擇題在氣溫15℃時(shí),鋪漿后立即砌磚和鋪漿后()再砌磚.

A.3min
B.4min
C.5min
D.6min

6.單項(xiàng)選擇題拌制砂漿用砂,不得含有冰塊和大于()的凍結(jié)塊

A.8mm
B.10mm
C.12mm
D.14mm