白色硅酸盐水泥GB2015-91
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah中华人民共和国国家标准$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah白色硅酸盐水泥GB2015-91$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah一、定义分级与用途$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah1.定义$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah凡以适当成分的生料烧至部分熔融，所得以硅酸钙为主要成分，铁质含量少的熟料加入适量的石膏，磨细制成的白色水硬性胶凝材料，称为白色硅酸盐水泥(简称白水泥)。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah磨制水泥时，允许加入不超过水泥重量5%的石灰石。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah注：允许加入不损害水泥性能的助磨剂磨制水泥，加入量不超过水泥重量1%。掺入期他外加物，必须经过试验，并呈报建筑材料工业部批准。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah2.分级$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah(1)标号：分325、425二个标号。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah(2)白度：分一级、二级、三级、四级四个等级。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah3.用途$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah主要用于建筑装饰，可配成彩色灰浆或制造各种彩色和白色混凝土如水磨石、斩假石等。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah二、技术要求$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah4.氧化镁$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah熟料氧化镁的含量不得超过4.5%。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah5.三氧化硫$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah水泥中三氧化硫的含量不得超过3.5%。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah6.细度$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah0.080毫米方孔筛筛余不得超过10%。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah7.凝结时间$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah初凝不得早于45分钟，终凝不得迟于12小时。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah8.安定性$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah用沸煮法检验，必须合格。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah9.强度$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah各标号相应的令期强度均不得低于表1数值：$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah表1$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah水泥标号$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 抗压强度,公斤/厘米2$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 抗压强度,公斤/厘米2$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
|
3天$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 7天$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 28天$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 3天$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 7天$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 28天$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
|
325$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 120$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 190$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 325$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 25$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 37$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 55$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
|
425$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 160$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 250$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 425$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 34$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 46$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 64$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
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$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah10.白度$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah各等级白度均不得低于表2数值：$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah表2$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah等级$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 一级$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 二级$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 三级$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 四级$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
|
自度,%$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 84$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 80$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 85$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
| 70$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah $N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
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$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah三、试验方法$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah11.氧化镁和三氧化硫$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah按GB 176-76《水泥化学分析方法》进行。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah12.细度$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah按GB 1345-77《水泥细度检验方法(筛析法)》进行。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah13.凝结时间和安定性$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah按GB 1346-77《水泥标准稠度用水量、凝结时间、安定性检验方法》进行。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah14.强度$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah按GB 177-77《水泥胶砂强度检验方法》进行。水灰比白水泥固定为0.44。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah15.白度$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah按GB 2016-80《白色硅酸盐水泥白度试验方法》进行。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah四、验收规则$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah16.编号及取样$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah水泥出厂前按同标号、同白度编号和取样。每一编号为一取样单位。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah编号按水泥年产量规定：$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah5万吨以上，不超过200吨为一编号；$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah1～5万吨，不超过100吨为一编号；$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah1万吨以下，不超过50吨或不超过三天产量为一编号。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah取样应有代表性。可连续取，亦可从20个以上不同部位取等量样品，总数至少10公斤。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah17.试验及留样$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah每一编号取得的白水泥样应充分混匀。分为两等份，一份由水泥厂按本标准第三章规定的方法进行试验；一份密封保管三个月，以备有疑问时提交国家指定的检验机关进行复验或仲裁。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah18.出厂水泥$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah出厂白水泥应保证出厂标号和白度。其余品质不符合本标准第二章各项指标的不得出厂。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah19.试验报告$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah水泥厂应在水泥发出日起11天内，寄发水泥品质试验报告。试验报告中应包括除28天强度以外的本标准第二章所列的各项试验结果。28天强度数值，应在水泥发出日起32天内补报。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah试验报告还应填报是否掺加石灰石及掺加量，并应附有该白水泥的品质指标。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah五、包装与标志$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah20.包装$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah纸袋包装每袋净重50±1公斤。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah注：包装纸袋应符合JG 59-63《水泥包装用纸袋》标准。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah21.标志$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah纸袋上须清楚标明：工厂名称、水泥名称、标号、白度等级、包装年、月、日和编号。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah六、运输与保管$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah
$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah22.运输与保管$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah水泥在运输与保管时不得受潮和混入杂物，不同标号和白度的水泥应分别贮运，不得混杂。$N§þË·åbbs.3c3t.comÎ÷¸D*Âì9ah %20(2)_1.gif)
