C25喷射砼PHB设计:G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
1、水泥:42.5G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
2、碎石:5~10、G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
3、砂:中砂G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
4、外加剂:速凝剂G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
PHB设计:G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
1、fcu,o=fcu,k+1.645=25+1.645×5=33.2MPaG´¶Ï··Fbbs.3c3t.comV|Ù!ñs
2、W/C=0.45G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
3、用水量:200kgG´¶Ï··Fbbs.3c3t.comV|Ù!ñs
4、水泥:C=200/0.45=444kgG´¶Ï··Fbbs.3c3t.comV|Ù!ñs
5、砂率:50%G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
6、砂石用量:假定容重为2200kg/m3G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
砂:S=(2200-444-200) ×50%=778kgG´¶Ï··Fbbs.3c3t.comV|Ù!ñs
石:C=2200-444-200-778=778kgG´¶Ï··Fbbs.3c3t.comV|Ù!ñs
C∶W∶C∶S=G´¶Ï··Fbbs.3c3t.comV|Ù!ñs
444∶220∶778∶778G´¶Ï··Fbbs.3c3t.comV|Ù!ñs