C25喷射砼PHB设计:9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
1、水泥:42.59Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
2、碎石:5~10、9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
3、砂:中砂9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
4、外加剂:速凝剂9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
PHB设计:9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
1、fcu,o=fcu,k+1.645=25+1.645×5=33.2MPa9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
2、W/C=0.459Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
3、用水量:200kg9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
4、水泥:C=200/0.45=444kg9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
5、砂率:50%9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
6、砂石用量:假定容重为2200kg/m39Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
砂:S=(2200-444-200) ×50%=778kg9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
石:C=2200-444-200-778=778kg9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
C∶W∶C∶S=9Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ
444∶220∶778∶7789Z¦1M/¢þÿbbs.3c3t.comËtþy_kÙ