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白色硅酸盐水泥GB2015-91¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

中华人民共和国国家标准¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

白色硅酸盐水泥GB2015-91¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
一、定义分级与用途¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
1.定义¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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)¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
磨制水泥时,允许加入不超过水泥重量5%的石灰石。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
2.分级¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
(1)标号:分325425二个标号。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
(2)白度:分一级、二级、三级、四级四个等级。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
3.用途¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

二、技术要求¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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4.氧化镁¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
熟料氧化镁的含量不得超过4.5%¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
5.三氧化硫¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
水泥中三氧化硫的含量不得超过3.5%¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
6.细度¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
0.080毫米方孔筛筛余不得超过10%¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
7.凝结时间¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
初凝不得早于45分钟,终凝不得迟于12小时。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
8.安定性¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
用沸煮法检验,必须合格。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
9.强度¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
各标号相应的令期强度均不得低于表1数值:¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

1¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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水泥标号¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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抗压强度,公斤/厘米2¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

抗压强度,公斤/厘米2¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

3¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

7¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

28¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

3¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

7¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

28¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

325¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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120¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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190¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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325¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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25¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

37¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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55¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

425¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

160¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

250¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

425¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

34¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

46¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

64¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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10.白度¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
各等级白度均不得低于表2数值:¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

2¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

等级¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

一级¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

二级¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

三级¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

四级¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

自度,%¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

84¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

80¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

85¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

70¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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三、试验方法¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
11.氧化镁和三氧化硫¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
GB 176-76《水泥化学分析方法》进行。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
12.细度¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
GB 1345-77《水泥细度检验方法(筛析法)》进行。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
13.凝结时间和安定性¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
14.强度¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
15.白度¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
GB 2016-80《白色硅酸盐水泥白度试验方法》进行。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

四、验收规则¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

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16.编号及取样¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
编号按水泥年产量规定:¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
5万吨以上,不超过200吨为一编号;¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
15万吨,不超过100吨为一编号;¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
1万吨以下,不超过50吨或不超过三天产量为一编号。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
17.试验及留样¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
18.出厂水泥¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
19.试验报告¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

五、包装与标志¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
20.包装¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
纸袋包装每袋净重50±1公斤。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
注:包装纸袋应符合JG 59-63《水泥包装用纸袋》标准。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
21.标志¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

六、运输与保管¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ

¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
22.运输与保管¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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。¯O(hŸ9€zvbbbs.3c3t.comÙÎᐕUÅ
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