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[公路] 水运工程混凝土质量控制标准》(JTJ 269—96） [复制链接]

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发表于 2011-06-25 23:56 |显示全部
3、《水运工程混凝土质量控制标准》(JTJ 269—96)w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．1．1* 混凝土拌合物质量指标的检验应符合下列规定：w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
(1)各种混凝土拌合物均检验其稠度；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
(2)有抗冻要求的混凝土拌合物检验其含气量；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
(3)流动性和大流动性混凝土拌合物检验其稠度损失；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
(4)根据需要检验混凝土拌合物的均匀性；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
(5)有温度控制要求的混凝土拌合物，检测其温度。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．2．1 混凝土的强度等级应按立方体抗压强度标准值fcu，k(N／mm2)划分，其分级如表3．2．1。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
混凝土强度等级w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
表3．2．1w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

普通混凝土w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C10w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C15w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C20w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C25w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C30w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C35w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C40w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C45w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C50w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C55w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C60w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C70w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C80w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

引气混凝土w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

—w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C15w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C20w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C25w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C30w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C35w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

C40w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

—w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

—w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

—w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

—w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

—w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

—w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
注：立方体抗压强度标准值系指按标准方法制作和养护的边长为150mm的立方体试件，在28d龄期，用标准试验方法测得的抗压强度总体分布中的一个值，强度低于该值的百分率不超过5％。 w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．3．2 海水环境混凝土在建筑物上部位的划分应符合表3．3．2的规定。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
海水环境混凝土部位划分w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
表3．2．2w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

大气区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

浪溅区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水位变动区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水下区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

设计高水位加1.5m以上w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

设计高水位加1.5m至设计高水位减1.0m之间w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

设计高水位减1.0m至设计低水位减1.0m之间w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

设计低水位减1.0m以下w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
　注：①对开敞式建筑物，其浪溅区上限，可根据受浪的具体情况适当调高；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
　　　　②对掩护条件良好的建筑物，其浪溅区上限可适当调低。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．3．3 淡水环境混凝土在建筑物上部位的划分，应符合表3．3．3的规定w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
淡水环境混凝土部位划分w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
表3．3．3w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水上区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水下区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水位变动区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

设计高水位以上w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

设计低水位以下w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水上区与水下区之间w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
注：水上区也可按历年平均最高水位以上划分。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．3．5 海水环境钢筋混凝土的保护层最小厚度应符合表3．3．5的规定。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
海水环境钢筋混凝土保护层最小厚度(mm) 表3．3．5w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

建筑物所处地区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

大气区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

浪溅区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水位变动区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水下区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

北方w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

50w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

50w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

50w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

30w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

南方w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

50w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

65w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

50w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

30w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
　注：①混凝土保护层厚度系指主筋表面与混凝土表面的最小距离；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
　　　　②表中数值系箍筋直径为6mm时主钢筋的保护层厚度，当箍筋直径超过6mm时，保护层厚度应按表中规定增加5mm；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
　　　　③位于浪溅区的码头面板、桩等细薄构件的混凝土保护层，南、北方一律取用50mm；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
　　　　④南方指历年最冷月月平均气温大于0℃的地区。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．3．6* 海水环境预应力混凝土的保护层最小厚度应符合下列规定。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．3．6．1* 当构件厚度为0．5m以上时应符合表3．3．6的规定。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
海水环境预应力筋的混凝土保护层最小厚度值(mm) 表3．3．6w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

所以部位w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

大气区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

浪溅区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水位变动区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水下区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

保护层厚度w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

75w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

90w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

75w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

75w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
注：①构件厚度系指规定保护层最小厚度的方向上的构件尺寸；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
②后张法的预应力筋保护层厚度系指预留孔道壁至构件表面的最小距离；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
③制作构件时，如采取特殊工艺或专门防腐措施，应经充分技术论证，对钢筋的防腐蚀作用确有保证时，保护层厚度方可不受上述规定的限制；w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
④永存应力小于400N／mm2的预应力筋的保护层厚度，按本标准表3．3．5执行。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．3．6．2* 当构件厚度小于0．5m时，预应力筋的混凝土保护层最小厚度应为2．5倍预应力筋直径，但不得小于50mm。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．3．7* 淡水环境受力钢筋的混凝土保护层最小厚度应符合表3．3．7的规定。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
淡水环境主筋混凝土保护层最小厚度(mm) 表3．3．7w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

建筑物w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
所处环境w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水上区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水位w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
变动区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水下区w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

水汽积聚w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

不受水汽积聚w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

北方w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

40w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

30w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ

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注：①箍筋直径超过6mm时，保护层厚度应按表中规定增加5mm。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
3．3．9 水位变动区有抗冻要求的混凝土，其抗冻等级不应低于表3．3．9 的规定。w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
水位变动区混凝土抗冻等级选定标准w²;0.ìÐ †bbs.3c3t.comLŒ "ïÇXŠõÌ
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