CN108425439B - 一种高延性保温隔热砌体墙的施工方法 - Google Patents
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Abstract
一种高延性保温隔热砌体墙的施工方法,根据砌体墙横截面的设计尺寸,在需要砌筑墙体的位置涂抹一层高性能砌筑砂浆;在高性能砌筑砂浆上铺设砌块,并涂抹高性能砌筑砂浆,按照砌体墙的设计高度,完成墙体的砌筑,养护7天使墙体达到初始强度;在完成砌筑墙体的表面涂抹高性能水泥基材料,然后在高性能水泥基材料上铺设纤维编织网,并在纤维编织网上涂抹高性能水泥基材料,湿水养护28天至高性能水泥基材料的龄期;在砌筑墙体与外界自然环境接触一侧的高性能水泥基材料上涂抹聚合物粘结砂浆,然后在聚合物粘结砂浆上铺贴保温隔热板,最后在保温隔热板上涂抹装饰砂浆。有效提高了新建砌体墙的延性,降低砌体结构在地震中发生严重破坏甚至倒塌的风险,同时有效改善了新建砌体墙的保温隔热性能,降低其建筑能耗。
Description
技术领域
本发明涉及一种砌体墙及其施工方法,特别是一种具有高延性、保温隔热性能的砌体墙的施工方法。
背景技术
未来很长时期内,砌体结构在我国工业与民用建筑中仍将占有重要地位。作为砌体结构的组成材料,砌体由块体和砂浆经砌筑而成,由于受材料特性和组成方式的影响,砌体具有较高的离散性和随机性,非均质性较混凝土更高,属于典型的脆性材料。震害调查结果表明,作为砌体结构的主要承载构件,砌体墙在地震中会发生严重的开裂甚至倒塌,导致砌体结构在历次地震中均遭到最为严重的破坏,其主要原因是砌体墙的延性较差。同时,随着对建筑环境舒适性要求的提高,制冷、供热采暖等设备的大量使用造成了巨大的能源消耗。因此,改善建筑结构自身保温隔热性能是提高建筑环境舒适性,降低建筑能耗的有效措施。对于新建砌体结构,在增加砌体墙延性的同时,进一步改善其保温隔热性能,是提高砌体结构抗震安全性,实现绿色建筑发展要求的有效措施。
发明内容
技术问题:本发明的目的是要克服现有技术中的不足之处,提供一种新型的高延性保温隔热砌体墙及其施工方法,能有效提高砌体结构的抗震安全性,同时降低砌体结构的建筑能耗。
技术方案:本发明的高延性保温隔热砌体墙及其施工方法,包括以下步骤:
1)根据砌体墙横截面的设计尺寸,在需要砌筑墙体的位置涂抹一层厚为5mm的高性能砌筑砂浆;
2)在所述高性能砌筑砂浆上铺设第一皮砌块,在所述第一皮砌块上涂抹一层5mm厚的高性能砌筑砂浆,在所述高性能砌筑砂浆上铺设第二皮砌块;
3)重复步骤2)中的砌筑铺设,按照砌体墙的设计高度,完成墙体的砌筑,养护7天使墙体达到初始强度;
4)在完成砌筑墙体的一侧表面涂抹一层2~3mm厚的高性能水泥基材料,然后在高性能水泥基材料上铺设纤维编织网,并在纤维编织网上涂抹一层2~3mm厚的高性能水泥基材料;
5)重复步骤4),完成砌筑墙体的另一侧高性能水泥基材料、纤维编织网的施工,湿水养护28天至高性能水泥基材料的龄期;
6)在所述砌筑墙体与外界自然环境接触一侧的高性能水泥基材料上,涂抹8~10mm厚的聚合物粘结砂浆,然后在所述聚合物粘结砂浆上铺贴符合国家标准尺寸的保温隔热板,直至铺贴满整面墙体,铺贴相邻保温隔热板之间的拼接缝小于2mm;所述保温隔热板的厚度,根据需要达到的保温隔热要求选取;
7)在所述保温隔热板上涂抹装饰砂浆,完成高延性保温隔热砌体墙的施工。
所述的高性能砌筑砂浆包括:42.5普通硅酸盐水泥、I级粉煤灰、硅砂、水和聚羧酸高效减水剂,其质量配比为:42.5普通硅酸盐水泥500kg/m3,I级粉煤灰220kg/m3,粒径0~0.6mm的硅砂800kg/m3,粒径0.6~1.2mm的硅砂400kg/m3,水252kg/m3,聚羧酸高效减水剂4kg/m3。
所述的高性能砌筑砂浆的制作过程:按质量比先将42.5普通硅酸盐水泥、I级粉煤灰和硅砂用搅拌机搅拌2分钟,然后加入水、聚羧酸高效减水剂再搅拌3~5分钟。
所述的砌块包括加气混凝土砌块、或泡沫混凝土砌块。
所述的高性能水泥基材料包括:42.5普通硅酸盐水泥、I级粉煤灰、石英砂、水、聚羧酸高效减水剂和聚乙烯醇纤维短切纤维,其质量配比为:42.5普通硅酸盐水泥380kg/m3,I级粉煤灰870kg/m3,粒径0~0.6mm的石英砂300kg/m3,粒径0.6~1.2mm的石英砂150kg/m3,水300kg/m3,聚羧酸高效减水剂18.5kg/m3和聚乙烯醇短切纤维26kg/m3。
所述的高性能水泥基材料的制作过程:按质量比先将42.5普通硅酸盐水泥、I级粉煤灰、石英砂用搅拌机搅拌2分钟,然后加入水、聚羧酸高效减水剂再搅拌3~5分钟,最后加入聚乙烯醇纤维短切纤维,再搅拌3~5分钟。
所述的纤维编织网的类型包括:碳纤维、耐碱玻璃纤维、玄武岩纤维、芳纶纤维、聚乙烯纤维、聚乙烯醇纤维、或亚麻纤维中的一种或两种。
所述的纤维编织网的网格尺寸为10、15或20mm;
所述保温隔热板的类型包括:聚苯乙烯泡沫板、石膏板、玻璃棉板、岩棉板、或矿渣棉板。
所述铺设的纤维编织网为一层或多层。
有益效果:由于采用了上述技术方案,本发明能有效提高新建砌体墙的延性,降低砌体结构在地震中发生严重破坏甚至倒塌的风险。同时,通过在砌体墙上布置保温隔热材料,可以有效提高砌体结构整体的保温隔热性能,降低建筑能耗。本发明能有效保证新建砌体结构的抗震安全性,同时符合绿色建筑的发展要求。可改善建筑结构自身保温隔热性能是提高建筑环境舒适性,降低建筑能耗的有效措施。对于新建砌体结构,在增加砌体墙延性的同时,能进一步改善其保温隔热性能,是提高砌体结构抗震安全性,实现绿色建筑发展要求的有效措施。其方法简单,操作方便,效果好,在本技术领域内具有广泛的实用性。
附图说明
图1是本发明的高延性保温隔热砌体墙结构示意图。
图2是图1的A-A向结构视图。
具体实施方式
下面结合附图中的实施例对本发明作进一步的描述:
本发明的高延性保温隔热砌体墙的施工方法,具体步骤如下:
1)根据砌体墙横截面的设计尺寸,在需要砌筑墙体的位置涂抹一层厚为5mm的高性能砌筑砂浆;所述砌筑墙体的位置应具有基本的平整度,以便高性能砌筑砂浆找平;所述的高性能砌筑砂浆包括:42.5普通硅酸盐水泥、I级粉煤灰、硅砂、水和聚羧酸高效减水剂,其质量配比为:42.5普通硅酸盐水泥500kg/m3,I级粉煤灰220kg/m3,粒径0~0.6mm的硅砂800kg/m3,粒径0.6~1.2mm的硅砂400kg/m3,水252kg/m3,聚羧酸高效减水剂4kg/m3。
所述的高性能砌筑砂浆的制作过程:按质量比先将42.5普通硅酸盐水泥、I级粉煤灰和硅砂用搅拌机搅拌2分钟,然后加入水、聚羧酸高效减水剂再搅拌3~5分钟。
2)在所述高性能砌筑砂浆上铺设第一皮砌块,在所述第一皮砌块上涂抹一层5mm厚的高性能砌筑砂浆,在所述高性能砌筑砂浆上铺设第二皮砌块;所述的砌块包括加气混凝土砌块、或泡沫混凝土砌块,砌块的主要优点为轻质、高强,砌筑成的墙体在地震中产生的惯性力较小,具有一定抗震能力,且具有良好的保温隔热性能;所述高性能砌筑砂浆的涂抹厚度应分布均匀,以保证砂浆层的饱满程度。
3)重复步骤2)中的砌筑铺设,按照砌体墙的设计高度,完成墙体的砌筑,养护7天使墙体达到初始强度;
4)在完成砌筑墙体的一侧表面涂抹一层2~3mm厚的高性能水泥基材料,然后在高性能水泥基材料上铺设纤维编织网,并在纤维编织网上涂抹一层2~3mm厚的高性能水泥基材料;所述的高性能水泥基材料包括:42.5普通硅酸盐水泥、I级粉煤灰、石英砂、水、聚羧酸高效减水剂和聚乙烯醇纤维短切纤维,其质量配比为:42.5普通硅酸盐水泥380kg/m3,I级粉煤灰870kg/m3,粒径0~0.6mm的石英砂300kg/m3,粒径0.6~1.2mm的石英砂150kg/m3,水300kg/m3,聚羧酸高效减水剂18.5kg/m3和聚乙烯醇短切纤维26kg/m3。
所述的高性能水泥基材料的制作过程:按质量比先将42.5普通硅酸盐水泥、I级粉煤灰、石英砂用搅拌机搅拌2分钟,然后加入水、聚羧酸高效减水剂再搅拌3~5分钟,最后加入聚乙烯醇纤维短切纤维,再搅拌3~5分钟。
所述的纤维编织网的类型包括:碳纤维、耐碱玻璃纤维、玄武岩纤维、芳纶纤维、聚乙烯纤维、聚乙烯醇纤维、或亚麻纤维中的一种或两种。所述的纤维编织网的网格尺寸为10、15或20mm;根据现场实际情况,铺设的纤维编织网为一层或多层。
5)重复步骤4),完成砌筑墙体的另一侧高性能水泥基材料、纤维编织网的施工,湿水养护28天至高性能水泥基材料龄期;根据砌体墙延性的提升要求,继续铺设纤维编织网,涂抹高性能水泥基材料,完成使用多层纤维编织网的实施过程。
6)在所述砌筑墙体与外界自然环境接触一侧的高性能水泥基材料上,涂抹8~10mm聚合物粘结砂浆,所述聚合物粘结砂浆的性能指标应符合国家相关标准;然后在所述聚合物粘结砂浆上铺贴符合国家标准尺寸的保温隔热板,直至铺贴满整面墙体,铺贴相邻保温隔热板之间的拼接缝小于2mm;当完全使用标准尺寸的保温隔热板无法铺贴满整面墙体时,可以将标准保温隔热板切割成合适的尺寸进行铺贴。所述保温隔热板的厚度,根据需要达到的保温隔热要求选取;所述保温隔热板的类型包括:聚苯乙烯泡沫板、石膏板、玻璃棉板、岩棉板、或矿渣棉板。
7)在所述保温隔热板上涂抹装饰砂浆,完成高延性保温隔热砌体墙的施工。所述的装饰砂浆即可满足墙体的外观要求,同时也可以对所述保温隔热板形成一定保护作用。
Claims (7)
1.一种高延性保温隔热砌体墙的施工方法,其特征在于,包括以下步骤:
1)根据砌体墙横截面的设计尺寸,在需要砌筑墙体的位置涂抹一层厚为5mm的高性能砌筑砂浆;
2)在所述高性能砌筑砂浆上铺设第一皮砌块,然后在所述第一皮砌块上涂抹一层5mm厚的高性能砌筑砂浆,再在所述高性能砌筑砂浆上铺设第二皮砌块;
3)重复步骤2)中的砌筑铺设,按照砌体墙的设计高度,完成墙体的砌筑,养护7天使墙体达到初始强度;
4)在完成砌筑墙体的一侧表面涂抹一层2~3mm厚的高性能水泥基材料,然后在高性能水泥基材料上铺设纤维编织网,并在纤维编织网上涂抹一层2~3mm厚的高性能水泥基材料;
5)重复步骤4),完成砌筑墙体的另一侧高性能水泥基材料、纤维编织网的施工,湿水养护28天至高性能水泥基材料的龄期;
6) 在所述砌筑墙体与外界自然环境接触一侧的高性能水泥基材料上,涂抹8~10mm厚的聚合物粘结砂浆,然后在所述聚合物粘结砂浆上铺贴符合国家标准尺寸的保温隔热板,直至铺贴满整面墙体,铺贴相邻保温隔热板之间的拼接缝小于2mm;所述保温隔热板的厚度,根据需要达到的保温隔热要求选取;
7)在所述保温隔热板上涂抹装饰砂浆,完成高延性保温隔热砌体墙的施工;所述的高性能砌筑砂浆包括:42.5普通硅酸盐水泥、I级粉煤灰、硅砂、水和聚羧酸高效减水剂,其质量配比为:42.5普通硅酸盐水泥500kg/m3,I级粉煤灰220kg/m3,粒径0~0.6mm的硅砂800kg/m3,粒径0.6~1.2mm的硅砂400kg/m3,水252kg/m3,聚羧酸高效减水剂4kg/m3;
所述的高性能水泥基材料包括:42.5普通硅酸盐水泥、I级粉煤灰、石英砂、水、聚羧酸高效减水剂和聚乙烯醇纤维短切纤维,其质量配比为:42.5普通硅酸盐水泥380kg/m3,I级粉煤灰870kg/m3,粒径0~0.6mm的石英砂300kg/m3,粒径0.6~1.2mm的石英砂150kg/m3,水300kg/m3,聚羧酸高效减水剂18.5kg/m3和聚乙烯醇短切纤维26kg/m3;
所述的纤维编织网的类型包括:碳纤维、耐碱玻璃纤维、玄武岩纤维、芳纶纤维、聚乙烯纤维、聚乙烯醇纤维、或亚麻纤维中的一种或两种。
2.根据权利要求1所述的一种高延性保温隔热砌体墙的施工方法,其特征在于:所述的高性能砌筑砂浆的制作过程:按质量比先将42.5普通硅酸盐水泥、I级粉煤灰和硅砂用搅拌机搅拌2分钟,然后加入水、聚羧酸高效减水剂再搅拌3~5分钟。
3.根据权利要求1所述的一种高延性保温隔热砌体墙的施工方法,其特征在于:所述的砌块包括加气混凝土砌块、或泡沫混凝土砌块。
4.根据权利要求1所述的一种高延性保温隔热砌体墙的施工方法,其特征在于:所述的高性能水泥基材料的制作过程:按质量比先将42.5普通硅酸盐水泥、I级粉煤灰、石英砂用搅拌机搅拌2分钟,然后加入水、聚羧酸高效减水剂再搅拌3~5分钟,最后加入聚乙烯醇纤维短切纤维,再搅拌3~5分钟。
5.根据权利要求1所述的一种高延性保温隔热砌体墙的施工方法,其特征在于:所述的纤维编织网的网格尺寸为10、15或20mm。
6.根据权利要求1所述的一种高延性保温隔热砌体墙的施工方法,其特征在于:所述保温隔热板的类型包括:聚苯乙烯泡沫板、石膏板、玻璃棉板、岩棉板、或矿渣棉板。
7.根据权利要求1所述的一种高延性保温隔热砌体墙的施工方法,其特征在于:所述铺设的纤维编织网为一层或多层。
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