推荐回答(5个)
混凝土与砖墙交接形成的阴角是不需要挂网;形成的阳角是需要挂钢丝网。
《建筑装饰装修工程质量验收规范》GB50210—2001第4.2.4 条 抹灰工程应分层进行。当抹灰总厚度大于或等于35 mm时,应采取加强措施。不同材料基体交接处表面的抹灰,应采取防止开裂的加强措施,当采用加强网时,加强网与各基体的搭接宽度不应小于100 mm。
这里说明是“表面”,阴角形成的是角度,而阳角部位在某一面上形成的是平面,因此阴角部位不需要挂网,而阳角部位应挂网。
1、不同材质交界处挂钢丝网片的作用是:拉结现浇砼梁柱和砖墙砌体交界处变形收缩而引起的裂缝;而满挂钢丝网是在外墙面保温层表面起到抗裂防水作用,一般保温层外面是贴面砖或石材时为钢丝网,当为外墙乳胶漆时,铺设耐碱网格布。
2、根据成因最常见的裂缝可分为四类:温度裂缝、干缩裂缝、设计及构造缺陷造成的裂缝、施工质量造成的裂缝。
3、防止墙体裂缝的措施还有:
(1)基层清理不到位,导致砂浆粘结不牢也易发生空鼓开裂。
(2)基层没有提前一天淋水湿润,因抹灰砂浆保水性能不能满足砌块吸水要求而引起抹灰层干缩开裂。
(3)抹灰一次成活,或分层抹灰无适当间隔时间,或抹灰层过厚未采取加强措施。因抹灰层自收缩、塑性收缩、滑移等,引起较大裂缝或微裂纹。
(4)门窗洞四角处于应力集中区,未采取合理连接构造措施,易变形拉裂。
(5)对不同材料的结合部、施工洞周边,没有采取加强措施。
(6)夏季抹灰后失水过快,没有及时喷雾养护;冬季施工昼夜温差冻融使砂浆失去粘结力。
(7)抹灰时对墙长大于3米的墙面(比如客厅墙)没有设置分格缝采取应力释放,应力集中易发生裂缝。
(8)抹灰操作时用力太轻,特别是刮底层灰时没有带有一定压力将砂浆挤进孔或缝内形成犬牙交错的连接,这样会出很多问题,例如粘结不牢,厚度不均匀,密度不一致,抹灰层松散,不利于底灰适应基层的变形,易发生裂缝。
(9)在面层压光时外罩一层素水泥浆或干水泥灰,这层水泥浆风干后薄而脆,易起皮,易龟裂,干灰易起砂掉粉。
(10)水泥砂浆没有在初凝时间内用完,已经风干结硬,和易性、塑性、保水性、粘结性已大大减弱,易出现大面积器质性不规则裂缝。
(11)采用水泥混合砂浆,掺合料石灰膏的熟化期不够,没有15天,导致抹灰内部结核膨胀炸裂。
(12)墙体开槽安装管线、穿墙套管、门窗边、线盒、插座、空调、热水器等部位抹灰嵌缝填补处理不当,没有养护,会引起局部开裂。
这个是在填充砌体结构验收规范里的要求,是在框架结构中使用的规定,大意如下
砖墙砌体与混凝土构件接触的面,必须设抗裂网,是每边300宽
也可以用塑料类网,这个规范上没有规定,现在长用的就是钢丝网和塑料类网
PS:呵呵,楼主,你把这个给楼上的老兄吧,我是狂生,他是狂人,都很狂,我的分多,你给他吧,也许他也是需要分,你知道答案就是你的目的,给谁你的目的都达到了,别给我
不会有阳角吧?要么在一平面,要么就是阴角,平面必须要挂网的,阴角可以不挂,也不一定非是钢丝网,
不一定要。在框架结构,填充墙是需要的,在砖混结构是不需要的。
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