xbllkj2007 - 2010/6/23 16:38:00
J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçfJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
1,计算试配强度:J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçfJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
fm,o=f2+0.645δ=7.5×1.18×0.645=8.7Mpa.J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçfJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
2,确定水泥用量:J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçfJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
1000(fm.o-β)J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
1000(8.7+15.09)J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçfQC=J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
=J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
=242kg/m3 J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçfJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
α*fceJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
3.03×32.5J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçfJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
3,确定水用量:J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf查表确定用水量为260kg/m3 J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçfJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
4,确定砂的用量:J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf用砂在干燥状态下的堆积密度值1480 kg/m3 作为砂的用量.J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçfJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
所以基准配合比确定为:水泥:砂:水=295:1480:260J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
妖童 - 2010/6/23 20:44:00
1,计算试配强度:J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
fm,o=f2+0.645δ=7.5+1.88×0.645=8.7MpaJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
2,确定水泥用量:J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
1000(fm.o-β)J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
1000(8.7+15.09)J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
QC=J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
=J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
=242kg/m3 J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
α*fceJ4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
3.03×32.5J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
3,确定水用量:J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
查表确定用水量为260kg/m3 J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
4,确定砂的用量:J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
用砂在干燥状态下的堆积密度值1480 kg/m3 作为砂的用量.J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
所以基准配合比确定为:水泥:砂:水=295:1480:260 J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
这个295的水泥怎么来的?J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
用水量查表最少都是270呀。J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
sxpm616 - 2010/6/23 21:16:00
既然是配合比设计,那么是否又配合比验证,砂浆的稠度是多少?在确定水泥用量的计算中,qc的用量是242,那基准配比中的295又是从何而来的?J4Ǭ¿íÃbbs.3c3t.comLÑÃiÔçf
鹰击长空 - 2010/12/8 16:18:00
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