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M7.5号砂浆配合比设计 [复制链接]

xbllkj2007
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  • 工程师
  • 42
  • 165
  • 2007-09-17
1#
t T
发表于 2010-06-23 16:38 |显示全部

++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§

++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
1,计算试配强度:++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
fm,o=f2+0.645δ=7.5×1.18×0.645=8.7Mpa.++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
2,确定水泥用量:++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
1000(fm.o-β)++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
1000(8.7+15.09)++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
QC=++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
=++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
=242kg/m3 ++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
α*fce++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
3.03×32.5++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
3,确定水用量:++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
查表确定用水量为260kg/m3 ++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
4,确定砂的用量:++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
用砂在干燥状态下的堆积密度值1480 kg/m3 作为砂的用量.++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
所以基准配合比确定为:水泥:砂:水=295:1480:260++ÊÄÚ%~ÿÝ©bbs.3c3t.comëîŒ|â±x§
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