C25喷射砼PHB设计:Q'±Ð]î|bbs.3c3t.comæ$,~À\
1、水泥:42.5Q'±Ð]î|bbs.3c3t.comæ$,~À\
2、碎石:5~10、Q'±Ð]î|bbs.3c3t.comæ$,~À\
3、砂:中砂Q'±Ð]î|bbs.3c3t.comæ$,~À\
4、外加剂:速凝剂Q'±Ð]î|bbs.3c3t.comæ$,~À\
PHB设计:Q'±Ð]î|bbs.3c3t.comæ$,~À\
1、fcu,o=fcu,k+1.645=25+1.645×5=33.2MPaQ'±Ð]î|bbs.3c3t.comæ$,~À\
2、W/C=0.45Q'±Ð]î|bbs.3c3t.comæ$,~À\
3、用水量:200kgQ'±Ð]î|bbs.3c3t.comæ$,~À\
4、水泥:C=200/0.45=444kgQ'±Ð]î|bbs.3c3t.comæ$,~À\
5、砂率:50%Q'±Ð]î|bbs.3c3t.comæ$,~À\
6、砂石用量:假定容重为2200kg/m3Q'±Ð]î|bbs.3c3t.comæ$,~À\
砂:S=(2200-444-200) ×50%=778kgQ'±Ð]î|bbs.3c3t.comæ$,~À\
石:C=2200-444-200-778=778kgQ'±Ð]î|bbs.3c3t.comæ$,~À\
C∶W∶C∶S=Q'±Ð]î|bbs.3c3t.comæ$,~À\
444∶220∶778∶778Q'±Ð]î|bbs.3c3t.comæ$,~À\