m10水泥砂浆配合比如何计算

2024-11-27 14:43:40
推荐回答(4个)
回答(1):

M10水泥砂浆配合比为:每立方米砂浆用32.5水泥275KG、河砂1450KG、水320KG,配合比为:1:5.27:1.16;M5混合砂浆每立方米用32.5水泥250KG、河砂1450KG、灰膏100KG、水280KG,配合比为1:5.8:0.4:1.12 。

回答(2):

M10砂浆配合比设计

使用部位:砌体等
设计强度:M10
设计稠度:50—70s
试验规程:JGJ92010
一、使用材料:
水 泥:朔州金圆牌 P.O42.5
细集料:广武中砂 中砂
水 :饮用水 地窖水
二、基准配合比:
确定试配强度:fm,0
fm,0=f2+0.645σ
=10+0.645×3.0
=11.9Mpa
σ取3.0(按施工水平较差取值)
2、计算水泥用量:Qc
Qc=1000×(fm,0-β)/( a× fce)
=1000×(11.9+15.09)/(3.03×42.5)
=274kg/m3
取Qc =340 kg/m3
注: a—特征系数为3.03
β—特征系数为-15.09
3、计算砂用量:Qs
砂堆积密度为1460kg/m3
Qs=1460 kg/m3
4、确定用水量:Qw
砂浆稠度设计为50-70mm
Qw =290 kg/m3
5、初步配合比的确定:
Qc:Qs:Qw=340:1460:290
三、试配和调整:按不同水泥用量选择3种配合比进行调整,其中一个为基准配合比,其他两个配合比的水泥用量按基准配合比分别增加及减少10%,最终确定试验室配合比。
1`、水泥用量减少10%时,其它参数为:
Qw =280kg Qc =306kg Qs =1460kg
Qc:Qs:Qw =306:1460:280
试拌5L,取样两组
Qc =1.53kg Qs =7.30kg Qw =1.40kg
实际加水:Qw =1.40kg 实测容重:2047kg/m3
每m3材料用量:
Qc =306kg Qs =1460 kg Qw =280kg
Qc:Qs:Qw =1:4.77:0.92
2、基准配合比水泥用量为340kg时,其它参数为:
Qw =290kg Qc =340kg Qs =1460kg
Qc:Qs:Qw =340:1460:290
试拌5L,取样两组
Qc =1.70kg Qs =7.30kg Qw =1.45kg
实际加水:Qw =1.45kg 实测容重:2091kg/m3
每m3材料用量:
Qc =340kg Qs =1460 kg Qw =290kg
Qc:Qs:Qw =1:4.29:0.85
3、水泥用量增加10%时,其它参数为:
Qw =300kg Qc =374kg Qs =1460kg
Qc:Qs:Qw =374:1460:300
试拌5L,取样两组
Qc =1.87kg Qs =7.30kg Qw =1.50kg
实际加水:Qw =1.50kg 实测容重:2135 kg/m3
每m3材料用量:
Qc =374kg Qs =1460kg Qw =300kg
Qc:Qs:Qw =1:3.90:0.80
4、三种不同水泥用量7天、28天抗压强度为:

水泥用量(kg) 7天抗压强度(Mpa) 28天抗压强度(Mpa)
306 8.8 11.8
340 11.2 14.0
374 13.0 16.2
四、确定试验室配合比:
Qc : Qs : Qw
340 : 1460 : 290
1 : 4.29 : 0.85

回答(3):

水泥砂浆,要求砂浆的强度等级为M10,稠度为80~90mm。所用原材料为:水泥-32.5级硅酸盐水泥,富余系数为1.0;砂-中砂,堆积密度为1500千克每立方米;施工水平一般。试计算砂浆的配合比。

回答(4):

可以参考《建筑工程材料》,有比较详细的计算方法

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