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