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一份完整C50空心板配合比C50空心板砼配合比计算及说明 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë一、试验依据 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë1、《公路工程水泥及水泥混凝土试验规程》JTG E30—2005 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë2、《公路工程集料试验规程》JTG E42—2005 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë3、《普通混凝土配合比设计规程》JGJ55—2000 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë4、《公路桥涵施工技术规范》JTJ041—2000 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë二、设计要求 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë1、该砼配合比设计强度等级:C50,试配强度:59.9Mpa àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë2、坍落度设计要求:70—90mm àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë3、该配合比设计单位重量:2452Kg/m3 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë4、该配合比拟用部位:预制空心板梁 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë三、原材料情况 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë1、砂:为江西石城砂场生产的粗砂。经试验检测该批砂各项指标均满足规范要求。具体指标如下: àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë表观密度(g/m3)àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 堆积密度kg/m3)àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 空隙率(%)àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 含泥量(%)àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 细度模数(Mx)àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 泥块含量(%)àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2608àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1499àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 42.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1.4àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 3.30àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë |
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: àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë表观 密度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë kg/m3 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 堆积 密度kg/m3àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 空隙 率àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë % àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 含泥 量àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë % àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 针、片状颗粒总含量àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë % àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 泥块 含量 % àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 压碎 值àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë % àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 颗粒 级配àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 小于2.36㎜颗粒含量àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë % àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2610àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1512àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 42.1àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.3àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 4.2àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.0àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 6.8àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 4.75-26.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.2àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë |
3、水泥:为江西瑞金生产的“万年青”牌P·O42.5R水泥。经试验检测该批(DP4085 A)水泥各项指标均符合规范要求。具体指标如下: àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë细度 % àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 标准稠度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë 用水量 % àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 初凝时间MINàã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 终凝时间MINàã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 安定性àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 3天抗折强度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 28天抗折强度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 3天抗压强度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 28天压 折强度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2.8àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 27.0àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 140àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 212àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2.8àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 5.1àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 7.4àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 28.0àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 47.3àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë |
4、水:饮用水。 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë5、外加剂为广州建宝新型建材有限公司生产的FDN-5B高效减水剂(粉末状颗粒),掺量为胶凝材料的1.4%。 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë四、配合比计算 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë初步配合比计算如下: àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë1、试配强度的计算:FC=50+1.645*6=59.9Mpa; àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë2、水灰比的计算:本配合比采用假定法进行选定W/C,0=0.32; àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë3、选定单位用水量:因设计坍落度为70-90则取W=191Kg/m3,但FDN-5B减水率为17%,W,0=191*(1-0.17)=159Kg/m3,, àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë4、计算单位水泥用量:C,0=W/(W/C)=497 Kg/m3; àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë5、根据经验确定砂率:SP=31%; àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë6、计算减水剂用量:497*0.014=6.958 Kg/m3; àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë7、计算砂、石用量MS0、MG0 (采用质量法) àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë假定砼密度为2452Kg/m3得:MS0=555Kg/m3,MG0=1234Kg/m3; àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë8、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。 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë基准配合比各原材料单位用量如下: àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë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%。 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë则相应的配合比各原材单位用量如下: àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë组号àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 水灰比àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 砂率àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 每m3材料用量(㎏)àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 7天抗压强度Mpaàã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 28天抗压强度Mpaàã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 水泥àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 砂àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 碎石4.75-26.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 碎石4.75-16àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 水àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | FDN-5Bàã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | Aàã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.32àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 31àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 497àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 555àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 926àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 308àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 155àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 6.958àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1109.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1248.1àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1186.4àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1406.7àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1430.1àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1353.7àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 49.3àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 55.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 52.7àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 62.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 63.6àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 60.2àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1.117àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1.863àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.620àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.32àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.014àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 52.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 62.1àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 实测坍落度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 80àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 78àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 实测砼密度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2452àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2449àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | Bàã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.30àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 30àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 530àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 527àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 922àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 307àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 159àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 7.42àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1263.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1231.2àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1296.9àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1406.7àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1512.4àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1548.àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 56.2àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 54.7àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 57.6àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 62.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 67.2àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 68.8àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.994àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1.740àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.579àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.30àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.014àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 56.2àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 66.2àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 实测坍落度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 73àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 76àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 实测砼密度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2453àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2458àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | Càã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.34àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 32àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 468àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 582àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 927àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 309àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 159àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 6.552àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1069.6àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1125.9àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1160.3àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1276.8àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1335.6àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1396.9àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 47.5àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 50.0àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 51.6àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 56.7àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 59.4àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 62.1àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1.244àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 1.981àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.660àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.34àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 0.014àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 49.7àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 59.4àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 实测坍落度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 83àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 80àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 实测砼密度àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2452àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | 2447àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë | | | | | | | | | | | | | | | | |
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。 àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë水泥:砂:碎石(4.75-26.5):碎石(4.75-19):水:FDN-5B= àã1¾F)Jð_bbs.3c3t.com;Y,ÒÖÀë
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