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如何控制止水钢板的施工质量

发布时间:2018-09-07

 

施工缝处接缝办法的断定

止水钢板施工缝处的接缝办法有多种多样,有凸凹缝型、凹凸缝型、平缝型、设止水带缝等,依据以往的施工经历,发现现在常用的几种接缝办法均存在着不同性质上的渗漏水的危险。比方“凹凸”型施工缝,坏处在于施工难度大,且很难保证质量。

施工缝处混凝土凿毛时,极易将“凸”楞碰掉一部分,由此削减和缩短了水的匍匐斜度和间隔,然后产生渗漏水现象;别的凹槽中的水泥砂浆粉未难以整理洁净,使在浇筑新砼后,在凹槽处构成一条夹渣层,影响新老砼的粘结质量,留下渗漏水的危险。所以选用止水钢板作为施工缝处理办法,是常用且作用比较好的办法。

止水钢板

施工中施工缝方位的断定

幸运飞艇破解公式 混凝土水池工程施工规范规定,施工缝的方位宜留在结构受剪力较小且便于施工的部位。关于水池池壁的施工缝,宜留在高出底板外表200~500mm的竖壁上。

施工缝能够选用橡胶止水带防水,可是橡胶止水带是呈柔性的,装置时难于固定,及具有柔性变形的特性,且易在浇注砼时受揉捏变形移位,然后导致部分渗漏水,并且橡胶止水带易老化失效。所以咱们施工中选用4mm厚的钢板作为施工缝处理的止水板进行加工按照处理。

依据规划要求,将选用400mm宽、4mm厚的钢板作为施工缝处的止水带,其防水作用较好。止水钢板首要的便利条件如下:一是将钢板止水带按要求加工成必定的长度,在施工现场装置就位后进行搭接焊即可;二是不易变形且便于固定,止水板下部可支承在对拉螺栓上,上部用钢筋点焊夹住固定在池壁两边板支撑系统上;三是施工缝上下止水板均有200mm高,爬水斜度陡,高度也较大,具有较好的防渗漏作用。

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作者:献县双坦止水钢板厂
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