2、碎石:为淮土料场生产的4.75—26.5碎石。经试验检测该批碎石4.75-16mm占25%和4.75-26.5mm占75%各项指标均满足规范要求。具体指标如下:
8、经初步配合比按8升量进行试拌,该配合比的实测坍落度80mm、78mm,满足设计的70—90mm的设计要求,棍度和含砂情况为中等,保水性和粘聚性均良好。所以该初步配合比做为基准配合比。
水泥:砂:碎石(4.75-26.5):碎石(4.75-16):水:FDN-5B=497:555:926:308:159:6.958=1:1.117:1.863:0.620:0.32:0.014在基准配合比的基础上,保持用水量不变,水灰比各增加或减少0.02,砂率也相应各增加或减少1%,则对应的W/C=0.30,SP=30%和W/C=0.34,SP=32%。
组号Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 水灰比Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 砂率Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 每m3材料用量(㎏)Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 7天抗压强度MpaÅê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 28天抗压强度MpaÅê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
水泥Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 砂Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 碎石4.75-26.5Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 碎石4.75-16Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 水Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | FDN-5BÅê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
AÅê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.32Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 31Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 497Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 555Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 926Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 308Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 155Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 6.958Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1109.5Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1248.1Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1186.4Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1406.7Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1430.1Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1353.7Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
49.3Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 55.5Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 52.7Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 62.5Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 63.6Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 60.2Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
1Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1.117Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1.863Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.620Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.32Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.014Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 52.5Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 62.1Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
实测坍落度Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 80Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 78Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 实测砼密度Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 2452Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 2449Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
BÅê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.30Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 30Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 530Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 527Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 922Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 307Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 159Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 7.42Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1263.5Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1231.2Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1296.9Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1406.7Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1512.4Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1548.Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
56.2Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 54.7Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 57.6Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 62.5Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 67.2Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 68.8Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
1Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.994Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1.740Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.579Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.30Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.014Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 56.2Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 66.2Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
实测坍落度Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 73Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 76Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 实测砼密度Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 2453Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 2458Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
CÅê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.34Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 32Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 468Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 582Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 927Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 309Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 159Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 6.552Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1069.6Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1125.9Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1160.3Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1276.8Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1335.6Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1396.9Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
47.5Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 50.0Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 51.6Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 56.7Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 59.4Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 62.1Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
1Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1.244Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 1.981Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.660Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.34Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 0.014Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 49.7Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 59.4Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
实测坍落度Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 83Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 80Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 实测砼密度Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 2452Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F | 2447Åê.aöQþ»¼ibbs.3c3t.comR³VÁù¢F |
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根据以上配合比试验结果分析,A组、B组配合比满足试配强度要求,但本配合比为室内配合比,砂及碎石的含水量为零,在现场施工中应实测现场砂及碎石的含水量,并根据砂及碎石的现场含水量换算为施工配合比。恳请试验监理工程师结合施工单位的施工水平以及施工现场的实际情况,选取A组或B组配合比指导现场施工,请贵办审批。