一、c25混凝土配合比
1、C25混凝土配合比
水泥:水:砂:碎石
372:175:593:1260
1:0.47:1.59:3.39
2、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(jì)算砂、石用量分別為:Mso==579kg,Mgo=1229kg
3、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(jì)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(jì)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(jì)要求。此時(shí),實(shí)際各材料用量為:水泥:水:砂:碎石=10.1:4.24:13.34:28.42kg
經(jīng)強(qiáng)度檢測(cè)(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
1:0.47:1.59:3.39
372:175:593:1260kg/m3
二、c25混凝土配合比表
1、現(xiàn)澆碎石混凝土配合比(單位:立方米)
定額編號(hào)12345
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0.3070.4000.4600.530
42.5Mpa水泥噸--------0.460
中砂立方米0.5110.4110.3620.3480.362
<16mm石子立方米0.8300.8700.8790.8450.879
水立方米0.2200.2200.2200.2200.220
定額編號(hào)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----0.2860.3720.428
42.5Mpa水泥噸0.530--------
52.5Mpa水泥噸--0.472------
中砂立方米0.3480.3600.5070.4090.359
<16mm石子立方米0.8450.873------
<20mm石子立方米----0.8600.9030.914
水立方米0.2200.2200.2000.2000.200
定額編號(hào)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0.493------
42.5Mpa水泥噸--0.4280.493--
52.5Mpa水泥噸------0.437
中砂立方米0.3460.3590.3460.370
<20mm石子立方米0.8830.9140.8830.897
水立方米0.2000.2000.2000.200
定額編號(hào)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0.4990.4020.3530.3420.353
<31.5mm石子立方米0.8840.9300.9430.9130.943
水立方米0.1900.1900.1900.1900.190
定額編號(hào)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0.467--------
52.5Mpa水泥噸--0.4150.456----
62.5Mpa水泥噸------0.4150.444
中砂立方米0.3420.3510.3440.3510.346
<31.5mm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(hào)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0.2600.3330.3840.442--
42.5Mpa水泥噸--------0.384
中砂立方米0.4910.3940.3460.3360.346
<40mm石子立方米0.9090.9580.9730.9430.973
水立方米0.1800.1800.1800.1800.180
2、預(yù)制碎石混凝土配合比(單位:立方米)
定額編號(hào)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0.4180.3690.3550.3690.355
<16mm石子立方米0.8830.8930.8620.8930.862
水立方米0.2100.2100.2100.2100.210
定額編號(hào)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----0.3520.4060.467
42.5Mpa水泥噸----------
52.5Mpa水泥噸0.4480.493------
中砂立方米0.3670.3580.4150.3650.354
<16mm石子立方米0.8890.867------
<20mm石子立方米----0.9160.9310.900
水立方米0.2100.2100.1900.1900.190
定額編號(hào)11121314
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水泥噸----0.4150.456
中砂立方米0.3650.3540.3640.356
<20mm石子立方米0.9310.9000.9260.906
水立方米0.1900.1900.1900.190
定額編號(hào)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0.4000.3520.3420.3520.342
<40mm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(hào)2021
項(xiàng)目C45C50
碎石粒徑<40mm
材料單位數(shù)量數(shù)量
52.5Mpa水泥噸0.3710.406
中砂立方米0.3510.344
<40mm石子立方米0.9850.967
水立方米0.1700.170
3、水下灌注碎石混凝土配合比(單位:立方米)
定額編號(hào)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
32.5Mpa水泥噸0.4410.501------
42.5Mpa水泥噸----0.4110.501--
52.5Mpa水泥噸--------0.469
中砂立方米0.5450.5270.5440.5270.536
<31.5mm石子立方米0.6920.700.6910.700.682
水立方米0.2340.2340.2340.2340.234
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