墙体横向裂缝是什么原因呢

2025-02-06 02:01:43
推荐回答(4个)
回答1:

农村自建房的墙体出现开裂的原因有很多种,是否有危险得看出现开裂的原因。
1、地基下沉
农村自建房也是要打地基的,如果地基的土质松软,比较容易出现地基下沉的现象。地基沉降不地基沉降不均匀,一般会出现斜向的裂纹,上宽下窄成斜角或对角线分布。下沉的地基与墙体形成剪力和拉力,就产生了裂纹。如果下层不是很厉害,裂纹不深,可以使用水泥砂浆重新抹灰或者其他方式修补。如果裂纹很深或者裂纹有加剧的现象,就得把地基的圈梁加宽重新加固,防止继续下沉。
2、墙体与楼板结合处出现横纹。
很多农村自建房是红砖加圈梁作为承重墙,楼顶是水泥钢筋浇筑的楼板。如果没有圈梁、柱子楼板的承重都在墙体上,在墙体的结合处很容易出现裂缝。农村自建房(三层)一般一楼二楼,在各个墙角都会使用螺纹钢浇筑圈梁柱子,特别是一楼需要更多的螺纹钢柱子承重。螺纹钢太少了,或者使用劣质的螺纹钢,也会在楼板与墙体的结合处出现裂缝。这种情况一般采用水泥砂浆重新填实,大的安全隐患倒是没有,只是房屋使用寿命低。
3、还有些是施工不当,造成的墙体出现横纹。
有些农村自建房,也会偷工减料。农村的泥水匠师傅,在墙体的堆砌的时候都会有垂直仪器查看墙体是否倾斜。如果墙体不垂直,墙体受力后也会出现横纹,这些横纹一般出现在墙体的中间位置。出现这样的横纹,可以推倒墙体重建。

回答2:

横向裂缝大多都是后装的隔墙自重压实砂浆后导致裂缝,但这样的裂缝都不大,也就2㎜左右。不过也有地基沉降严重导致横向开裂的,其裂缝甚至会有5㎜及以上。希望我的解答能帮到你

回答3:

1.地基沉降不均衡;
2.温度变化大,热胀冷缩导致裂缝产生;
3.原材料不合格,不可以用粘土实心砖和粘土空心砖,最好用水泥砖;

回答4:

墙体开裂有三种原因。


第一种类型就是墙体表面的一些细微的裂缝。这里所谓的墙体表面的一些细微裂缝,主要就是指我们墙面的乳胶漆出现了毛细的裂纹或者是腻子层出现了轻微的裂缝。这些裂缝只是出现在表层的装饰材面层上,我们把面层的乳胶漆铲掉以后,发现下面是没有裂缝的。这类就都归纳为表层的毛细裂缝。
第二种类型就是墙体抹灰层出现的裂缝。墙体抹灰层出现的裂缝,主要有两大类:第一大类就是墙体大面上出现的不规则的裂缝;第二大类就是不同墙体交接部位出现的抹灰层的裂缝。这类裂缝一般都很深,我们把抹灰层剔除掉以后,就发现裂缝一直到我们基层的墙体表面。
第三种类型就是墙体上的结构裂缝。所谓墙体上的结构裂缝,一般都是出现在我们的顶板上或者是混凝土的墙体上。我们把表层的一些装修材料铲除以后,就会发现裂缝是混凝土墙面或者是顶板上出现的,这类也都归结为结构裂缝。
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