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一、为什么在基础与墙身交接处要设置防潮层?埋藏在土壤中的水份叫地下水。地下水沿着土壤和材料中的孔隙缓缓上升,使基础以上墙身受潮的现象,就是我们常说的“毛细”现象。地下水通过“毛细”现象,可以使离地面1000～1500毫米高度的墙身受潮,造成室内灰皮脱落和室外砖墙碱化,影响室内卫生和结构耐久性。为了提高墙身的坚固和耐久性,一般要在基础墙的顶部设置防潮层。防潮层放在建筑物的什么位置十分重要。位置放得不对,就起不到应有的作用,一般是放在室内地坪下一皮砖处,即标高为-0.06米的墙身处。这个标高正好是在地面的混凝土垫层
1. Why do we need to set up a moisture barrier at the junction between the foundation and the wall? The water buried in the soil is called groundwater. Groundwater is slowly rising along the pores of soil and materials, and the phenomenon of dampness above the foundation walls is what we often call the “capillary” phenomenon. Groundwater through the “capillary” phenomenon, can make the wall from the ground 1000 ~ 1500 mm height damp, resulting in indoor gray peeling and alkalinity of the outdoor brick wall, affecting indoor health and structural durability. In order to improve the sturdiness and durability of the wall, it is generally necessary to provide a moisture barrier on the top of the foundation wall. It is very important where the moisture barrier is placed in the building. If the location is not right, it will not achieve its proper function. Generally, it is placed on the wall of the indoor floor next to the skin, that is, the wall height of -0.06 meters. This elevation is exactly the concrete cushion on the ground