c25混凝土配合比表

1、混凝土需要用水泥作膠凝材料，砂、石作集料，與水按一定比例配合，經(jīng)攪拌、成型、養(yǎng)護(hù)才能形成，而混凝土按標(biāo)準(zhǔn)抗壓強(qiáng)度劃分的強(qiáng)度等級，稱為標(biāo)號，分為C10、C15、C20、C25等，C25混凝土配合比是多少呢？更多與混凝土、裝修相關(guān)的資訊，請點(diǎn)擊瀏覽一、c25混凝土配合比1、C25混凝土配合比水泥:水:砂：碎石372:175:59312601:0.47:1.593.392、調(diào)整水灰比調(diào)整水灰比為0.42,用水量為175kg,水泥用量為Mco=175/0.42=417kg,按重量法計算砂、石用量分別為：Mso=579kg,Mgo=1229kg3、混凝土配合比的試配、調(diào)整與確定試用配合比1和2,分別進(jìn)行

2、試拌:配合比1:水泥：水：砂：碎石=372:175:593:1260=1:0.47:1.59:3.39;試拌材料用量為：水泥：水：砂：碎石=8.5:4.0:13.52:28.82kg;拌和后，坍落度為30mm,達(dá)到設(shè)計要求；配合比2:水泥：水：砂：碎石=417:175:579:1229=1:0.42:1.39:2.95試拌材料用量為：水泥：水：砂：碎石=9.6:4.03:13.34:28.42kg拌和后，坍落度僅20mm,達(dá)不到設(shè)計要求，故保持水灰比不變，增加水泥用量500g,增加拌和用水210g,再拌和后，坍落度達(dá)到35mm,符合設(shè)計要求。此時，實(shí)際各材料用量為：水泥：水：砂：碎石=10.1

3、:4.24:13.34:28.42kg經(jīng)強(qiáng)度檢測（數(shù)據(jù)見試表），第1組、2組配合比強(qiáng)度均符合試配強(qiáng)度要求，綜合經(jīng)濟(jì)效益,確定配合比為第1組，即：水泥：水：砂：碎石1:0.47:1.59:3.39372:175:593:1260kg/m3c25混凝土配合比表1、現(xiàn)澆碎石混凝土配合比（單位：立方米）項(xiàng)目C15C20C25C30C35碎石粒徑16mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量數(shù)量32.5Mpa水泥噸0.3070.4000.4600.53042.5Mpa水泥噸0.460中砂立方米0.5110.4110.3620.3480.36216mm石子立方米0.8300.8700.8790.8450.879水立方米

4、0.2200.2200.2200.2200.220定額編號678910項(xiàng)目C40C45C15C20C25碎石粒徑16mm碎石粒徑20mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量數(shù)量32.5Mpa水泥噸一0.2860.3720.42842.5Mpa水泥噸0.53052.5Mpa水泥噸-0.472中砂立方米0.3480.3600.5070.4090.35916mm石子立方米0.8450.87320mm石子立方米-0.8600.9030.914水立方米0.2200.2200.2000.2000.200定額編號11121314項(xiàng)目C30C35C40C45碎石粒徑20mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量32.5Mpa水泥噸0.

5、49342.5Mpa水泥噸-0.4280.493-52.5Mpa水泥噸0.437中砂立方米0.3460.3590.3460.370120mm石子立方米0.8830.9140.8830.897水立方米0.2000.2000.2000.200定額編號1516171819項(xiàng)目C15C20C25C30C35碎石粒徑31.5mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量數(shù)量32.5Mpa水泥噸0.2710.3520.4060.467-42.5Mpa水泥噸0.406中砂立方米0.4990.4020.3530.3420.35331.5mm石子立方米0.8840.9300.9430.9130.943水立方米0.1900.190

6、0.1900.1900.190定額編號2021222324項(xiàng)目C40C45C50C55C60碎石粒徑31.5mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量數(shù)量42.5Mpa水泥噸0.46752.5Mpa水泥噸-0.4150.456-62.5Mpa水泥噸0.4150.444中砂立方米0.3420.3510.3440.3510.34631.5mm石子立方米0.9130.9390.9190.9390.924水立方米0.1900.1900.1900.1900.190定額編號2526272829項(xiàng)目C15C20C25C30C35碎石粒徑40mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量數(shù)量32.5Mpa水泥噸0.2600.3330.384

7、0.442-42.5Mpa水泥噸0.384中砂立方米0.4910.3940.3460.3360.34640mm石子立方米0.9090.9580.9730.9430.973水立方米0.1800.1800.1800.1800.1802、預(yù)制碎石混凝土配合比（單位：立方米）定額編號12345項(xiàng)目C20C25C30C35C40碎石粒徑16mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量數(shù)量32.5Mpa水泥噸0.3810.4390.505-42.5Mpa水泥噸0.4390.505中砂立方米0.4180.3690.3550.3690.35516mm石子立方米0.8830.8930.8620.8930.862水立方米0.21

8、00.2100.2100.2100.210定額編號678910項(xiàng)目C45C50C20C25C30碎石粒徑16mm碎石粒徑20mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量數(shù)量32.5Mpa水泥噸一0.3520.4060.46742.5Mpa水泥噸52.5Mpa水泥噸0.4480.493中砂立方米0.3670.3580.4150.3650.35416mm石子立方米0.8890.86720mm石子立方米-0.9160.9310.900水立方米0.2100.2100.1900.1900.190項(xiàng)目C35C40C45C50碎石粒徑20mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量42.5Mpa水泥噸0.4060.467-52.5Mpa水

9、泥噸-0.4150.456中砂立方米0.3650.3540.3640.35620mm石子立方米0.9310.9000.9260.906水立方米0.1900.1900.1900.190定額編號1516171819項(xiàng)目C20C25C30C35C40碎石粒徑40mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量數(shù)量32.5Mpa水泥噸0.3140.3620.416-42.5Mpa水泥噸0.3620.416中砂立方米0.4000.3520.3420.3520.34240mm石子立方米0.9720.9890.9620.9890.962水立方米0.1700.1700.1700.1700.170定額編號2021項(xiàng)目C45C50碎石粒徑40mm|材料單位數(shù)量數(shù)量一52.5Mpa水泥噸0.3710.406中砂立方米0.3510.34440mm石子立方米0.9850.967水立方米0.1700.1703、水下灌注碎石混凝土配合比（單位：立方米）定額編號12345項(xiàng)目C20C25C30C35C40碎石粒徑31.5mm材料單位數(shù)量數(shù)量數(shù)量數(shù)量數(shù)量