C40混凝土配比是多少?用在给路灯打地笼。或者推荐个适用标号的混凝土。谢谢!!!

2024-11-16 07:00:42
推荐回答(4个)
回答(1):

路灯基础用C15的混凝土就行,最多用C20的混凝土,不必要用C40的,下面是混凝土配合比表,路灯基础选用石子粒径小于40mm的就行。混凝土配合比表1、石子粒径小于16mm:C15:水泥32.5MPa,0.307吨;砂子0.511m�0�6;石子0.83m�0�6;水0.22m�0�6。C20:水泥32.5MPa,0.4吨;砂子0.411m�0�6;石子0.87m�0�6;水0.22m�0�6。C25:水泥32.5MPa,0.46吨;砂子0.362m�0�6;石子0.879m�0�6;水0.22m�0�6。C30:水泥32.5MPa,0.53吨;砂子0.348m�0�6;石子0.845m�0�6;水0.22m�0�6。C35:水泥42.5MPa,0.46吨;砂子0.362m�0�6;石子0.879m�0�6;水0.22m�0�6。2、石子粒径小于20mm:C15:水泥32.5MPa,0.286吨;砂子0.507m�0�6;石子0.86m�0�6;水0.2m�0�6。C20:水泥32.5MPa,0.372吨;砂子0.409m�0�6;石子0.903m�0�6;水0.2m�0�6。C25:水泥32.5MPa,0.428吨;砂子0.359m�0�6;石子0.914m�0�6;水0.2m�0�6。C30:水泥32.5MPa,0.493吨;砂子0.346m�0�6;石子0.883m�0�6;水0.2m�0�6。C35:水泥42.5MPa,0.428吨;砂子0.359m�0�6;石子0.914m�0�6;水0.2m�0�6。3、石子粒径小于31.5mm:C15:水泥32.5MPa,0.271吨;砂子0.499m�0�6;石子0.884m�0�6;水0.19m�0�6。C20:水泥32.5MPa,0.352吨;砂子0.402m�0�6;石子0.93m�0�6;水0.19m�0�6。C25:水泥32.5MPa,0.406吨;砂子0.353m�0�6;石子0.943m�0�6;水0.19m�0�6。C30:水泥32.5MPa,0.467吨;砂子0.342m�0�6;石子0.913m�0�6;水0.19m�0�6。C35:水泥42.5MPa,0.406吨;砂子0.353m�0�6;石子0.943m�0�6;水0.19m�0�6。4、石子粒径小于40mm:C15:水泥32.5MPa,0.26吨;砂子0.491m�0�6;石子0.909m�0�6;水0.18m�0�6。C20:水泥32.5MPa,0.333吨;砂子0.394m�0�6;石子0.958m�0�6;水0.18m�0�6。C25:水泥32.5MPa,0.384吨;砂子0.346m�0�6;石子0.973m�0�6;水0.18m�0�6。C30:水泥32.5MPa,0.442吨;砂子0.336m�0�6;石子0.943m�0�6;水0.18m�0�6。C35:水泥42.5MPa,0.384吨;砂子0.346m�0�6;石子0.973m�0�6;水0.18m�0�6。

回答(2):

C40混凝土配合比为:42.5MPa水泥0.53吨 砂0.348立方米 碎石(小于16mm)0.845立方米 水0.22m�0�6。水泥42.5,水泥富余系数1,碎石最大粒径40mm,塌落度55~70mm
1立方米C40混凝土=水泥487:砂533:石1245:水185
不采用外加剂,C40混凝土各地价格不一,一般在300-350元左右吧。

回答(3):

路灯C20或C25的就行,寒冷地区建议C25。

回答(4):

俺们不一直在用C25的么!!!