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厂房临近施工,四周的散水坡一定要做吗?要做多大呢? - 工程施工 - 项目管理 - 氿上知道
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满意答案
一定要做的呀。
1、散水:
为了保护墙基不受雨水侵蚀,常在外墙四周将地面做成向外倾斜的坡面,以便将屋面的雨水排至远处,这是保护房屋基础的有效措施之一;
2、散水的宽度:
a 、散水的宽度应比房檐挑出的宽度大100~200mm, 并要做出约5‰的坡度,散水外侧应比室外地面高出50mm,散水坡度一般为2%~5%;分格是为了防止混凝土吸水发胀引起开裂;缝内用沥青砂浆填充;
b、散水的构造包括宽度为600~1000mm;坡度为4%~5%;材料为素土夯实,上铺三合土或混凝土。端部稍高于自然土壤面层;根部设分隔缝,内填弹性防水材料;
3、散水的做法:
a、散水通常用现浇混凝土做成,每隔6---12m左右留20mm宽的缝一道,灌以沥青玛蹄脂。简易的散水做法,也可用卵石或砖铺砌。明沟最好用混凝土做成。简易明沟也可用砖砌成,外面抹水泥砂浆。明沟的沟底应做纵向坡度,以便排水。湿陷性黄土地区,不宜沿墙设置明沟,若必须设明沟,必须确保不积水并排水通畅;
b、散水有如下几种做法:(1)、混凝土散水(C8):混凝土厚60—80mm,基层为素土夯实。(2)、砖铺散水:平铺砖,砂浆勾缝,砂垫层,基层夯实。(3)、块石散水:片石平铺,1:3水泥砂浆勾缝,基层为素土夯实。(4)、三合土散水:1:3:6石灰:砂:碎石,厚80-100mm~拍打锤平。
苏利先森
回答于:2013-08-29
共2条回答