论文部分内容阅读
南方地区的公共卫生间用水频繁,很容易发生渗漏。主要表现为楼板、管道滴漏,墙面渗水,不但影响使用,还会损坏建筑物。一、楼板滴漏原因 1.施工中模板胀鼓、下沉,浇灌初期的混凝土强度不高,楼板易产生裂缝。造成这一问题的原因是摸板在浇灌前没有浇水,模板吸收混凝土的水分后,体积膨胀。支撑不牢也易造成模板下沉,二层卫生间混凝土模板支撑落在底层回填土上,更易下沉。对我地区三个施工单位的现场调查表明:二层卫生间楼板普通存在裂缝,二层以上的现浇混凝土楼板则裂缝显著减少。 2.负筋被踩陷。混凝土浇灌后未达到拆
Public toilets in the South have frequent water use and are prone to leakage. Mainly manifested as floorboards, pipe drip, wall seepage, not only affect the use, but also damage the building. First, floor leakage causes 1. Formwork drum expansion, sinking, watering initial concrete strength is not high, the floor is prone to cracks. The reason for this problem is that the template is not watered before it is poured. The template absorbs moisture from the concrete and expands in volume. Insufficient support can also cause the template to sink. The second-tier bathroom concrete formwork support falls on the backfill soil of the bottom layer and is easier to sink. The on-the-spot survey of three construction units in our region showed that there are cracks in the second floor of the bathroom floor, and the cracks in the cast-in-place concrete floors above the second floor are significantly reduced. 2. Negative tendons are depressed. The concrete has not been demolished after watering