资讯资讯

最新动态

行业资讯

建筑上如何利用“空腔原理”防水?

<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">?防企网讯    装配式预制外墙板(以下简称“外板”),除满足结构受力外,还需要满足防水、保温、外观等建筑要求。而板间接缝是防水、保温的薄弱环节,所以必须处理好。<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">
<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;"><p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">
<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">目前常见的是利用构造防水(即空腔防水)的方法,就是在板间接缝作成“空腔”,用此空腔解决防水与保温问题。为正确掌握空腔混凝土的浇筑方法,必须对空腔的构造及防水、保温的机理,做一初步了解。<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif; font-size: 16px; max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); line-height: 25.6px; box-sizing: border-box !important; word-wrap: break-word !important;">
<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif; font-size: 16px; max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); line-height: 25.6px; box-sizing: border-box !important; word-wrap: break-word !important;">广告:京建防水<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif; font-size: 16px; max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); box-sizing: border-box !important; word-wrap: break-word !important;"><p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">
<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">一般板间缝渗水(雨水)的原因有以下几点:
(1)因雨水对板缝的冲击,缝内雨水构成水压;
(2)雨水受自重作用,对板缝构成渗透;
(3)因雨水的毛细现象形成渗透;
(4)风压对雨水渗透的加速。

<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">针对上述原因,空腔的作用是: 

<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">(1)空腔最外缘由防水砂浆(或防水油膏)勾缝和软质聚乙烯板组成第一道“防线”,抵挡水压及风压。

<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">(2)透过第一道防线进入空腔的雨水,遇空腔而减压,并切断毛细通路,无法构成渗透。

<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">(3)雨水受自重作用,沿空腔设置的竖向沟槽下流,通过底部排水口排至室外。水平空腔防水机理与上述相似,不同之处在于第一道防线是由板端挡水檐担负。雨水在风压作用下,沿挡水檐上串构成“水头”,所以挡水檐高度应略高于当地最大水头高度(一般为5~7cm)。<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif; font-size: 16px; max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); box-sizing: border-box !important; word-wrap: break-word !important;">
<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif; font-size: 16px; max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); box-sizing: border-box !important; word-wrap: break-word !important;">广告:世纪洪雨

<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">
<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">了解空腔的防水保温机理后,在外板安装时,必须按照各种类型的空腔构造施工,确保空腔混凝土浇筑质量,不允许混凝土浇入空腔,或压缩空腔的有效空间,防止振捣时将保温苯板挤断移位。若一旦混凝土进入空腔,必须及时处理,否则硬化后剔凿困难,造成后患。勾缝时,一定要留出排水孔。<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">
<p style="margin: 0px; padding: 0px; clear: both; font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "微软 YaHei", Arial, sans-serif;font-size:medium;">来源:网络
  • 沙巴体育官网
  • 防水材料批发
  • 防水工程施工
  • 防水补漏维修服务
  • 关于大家
  • 联系大家
  • 资讯资讯
  • @Copyright 2016-2021 成都兰湖防水材料工程施工企业 版权所有 备案号:蜀ICP备16033164号 站点地图
    百度关键词: 防水材料 成都屋顶防水 成都防水堵漏 成都防水补漏   业务咨询 136 8834 8864  技术咨询:028-66846684
    XML 地图 | Sitemap 地图