白色硅酸盐水泥GB2015-91
KFÞܱTë *bbs.3c3t.comYÖýúïº%中华人民共和国国家标准KFÞܱTë *bbs.3c3t.comYÖýúïº%
KFÞܱTë *bbs.3c3t.comYÖýúïº%白色硅酸盐水泥GB2015-91KFÞܱTë *bbs.3c3t.comYÖýúïº%
KFÞܱTë *bbs.3c3t.comYÖýúïº%一、定义分级与用途KFÞܱTë *bbs.3c3t.comYÖýúïº%1.定义KFÞܱTë *bbs.3c3t.comYÖýúïº%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)。KFÞܱTë *bbs.3c3t.comYÖýúïº%磨制水泥时，允许加入不超过水泥重量5%的石灰石。KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%2.分级KFÞܱTë *bbs.3c3t.comYÖýúïº%(1)标号：分325、425二个标号。KFÞܱTë *bbs.3c3t.comYÖýúïº%(2)白度：分一级、二级、三级、四级四个等级。KFÞܱTë *bbs.3c3t.comYÖýúïº%3.用途KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%二、技术要求KFÞܱTë *bbs.3c3t.comYÖýúïº%
KFÞܱTë *bbs.3c3t.comYÖýúïº%4.氧化镁KFÞܱTë *bbs.3c3t.comYÖýúïº%熟料氧化镁的含量不得超过4.5%。KFÞܱTë *bbs.3c3t.comYÖýúïº%5.三氧化硫KFÞܱTë *bbs.3c3t.comYÖýúïº%水泥中三氧化硫的含量不得超过3.5%。KFÞܱTë *bbs.3c3t.comYÖýúïº%6.细度KFÞܱTë *bbs.3c3t.comYÖýúïº%0.080毫米方孔筛筛余不得超过10%。KFÞܱTë *bbs.3c3t.comYÖýúïº%7.凝结时间KFÞܱTë *bbs.3c3t.comYÖýúïº%初凝不得早于45分钟，终凝不得迟于12小时。KFÞܱTë *bbs.3c3t.comYÖýúïº%8.安定性KFÞܱTë *bbs.3c3t.comYÖýúïº%用沸煮法检验，必须合格。KFÞܱTë *bbs.3c3t.comYÖýúïº%9.强度KFÞܱTë *bbs.3c3t.comYÖýúïº%各标号相应的令期强度均不得低于表1数值：KFÞܱTë *bbs.3c3t.comYÖýúïº%表1KFÞܱTë *bbs.3c3t.comYÖýúïº%
KFÞܱTë *bbs.3c3t.comYÖýúïº%水泥标号KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 抗压强度,公斤/厘米2KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 抗压强度,公斤/厘米2KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
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3天KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 7天KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 28天KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 3天KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 7天KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 28天KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
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325KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 120KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 190KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 325KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 25KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 37KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 55KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
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425KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 160KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 250KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 425KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 34KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 46KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 64KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
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KFÞܱTë *bbs.3c3t.comYÖýúïº%10.白度KFÞܱTë *bbs.3c3t.comYÖýúïº%各等级白度均不得低于表2数值：KFÞܱTë *bbs.3c3t.comYÖýúïº%表2KFÞܱTë *bbs.3c3t.comYÖýúïº%
KFÞܱTë *bbs.3c3t.comYÖýúïº%等级KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 一级KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 二级KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 三级KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 四级KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
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自度,%KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 84KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 80KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 85KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
| 70KFÞܱTë *bbs.3c3t.comYÖýúïº% KFÞܱTë *bbs.3c3t.comYÖýúïº%
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KFÞܱTë *bbs.3c3t.comYÖýúïº%三、试验方法KFÞܱTë *bbs.3c3t.comYÖýúïº%
KFÞܱTë *bbs.3c3t.comYÖýúïº%11.氧化镁和三氧化硫KFÞܱTë *bbs.3c3t.comYÖýúïº%按GB 176-76《水泥化学分析方法》进行。KFÞܱTë *bbs.3c3t.comYÖýúïº%12.细度KFÞܱTë *bbs.3c3t.comYÖýúïº%按GB 1345-77《水泥细度检验方法(筛析法)》进行。KFÞܱTë *bbs.3c3t.comYÖýúïº%13.凝结时间和安定性KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%14.强度KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%15.白度KFÞܱTë *bbs.3c3t.comYÖýúïº%按GB 2016-80《白色硅酸盐水泥白度试验方法》进行。KFÞܱTë *bbs.3c3t.comYÖýúïº%四、验收规则KFÞܱTë *bbs.3c3t.comYÖýúïº%
KFÞܱTë *bbs.3c3t.comYÖýúïº%16.编号及取样KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%编号按水泥年产量规定：KFÞܱTë *bbs.3c3t.comYÖýúïº%5万吨以上，不超过200吨为一编号；KFÞܱTë *bbs.3c3t.comYÖýúïº%1～5万吨，不超过100吨为一编号；KFÞܱTë *bbs.3c3t.comYÖýúïº%1万吨以下，不超过50吨或不超过三天产量为一编号。KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%17.试验及留样KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%18.出厂水泥KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%19.试验报告KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%五、包装与标志KFÞܱTë *bbs.3c3t.comYÖýúïº%
KFÞܱTë *bbs.3c3t.comYÖýúïº%20.包装KFÞܱTë *bbs.3c3t.comYÖýúïº%纸袋包装每袋净重50±1公斤。KFÞܱTë *bbs.3c3t.comYÖýúïº%注：包装纸袋应符合JG 59-63《水泥包装用纸袋》标准。KFÞܱTë *bbs.3c3t.comYÖýúïº%21.标志KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº%六、运输与保管KFÞܱTë *bbs.3c3t.comYÖýúïº%
KFÞܱTë *bbs.3c3t.comYÖýúïº%22.运输与保管KFÞܱTë *bbs.3c3t.comYÖýúïº%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。KFÞܱTë *bbs.3c3t.comYÖýúïº% %20(2)_1.gif)
