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我公司于1994年承建的某商场工程,在使用中曾因星面渗漏而维修过3次。第一次维修时是将原屋面防水面层铲除,重新浇筑60mm 厚的 C20、P6细石防水混凝土,放置双向直径6mm@250mm 钢筋,面层用1:2.5水泥砂浆做保护层,纵横双向每隔6m 设置20mm 宽伸缩缝。事隔3年后发现,在四周女儿墙底处屋面出现渗漏,施工人员认为是女儿墙与屋面交界处应做圆弧 r=100mm,于是按照《广州市建筑工程质量通病
My company built in 1994, a shopping mall project, in service has been repaired due to the star surface over 3 times. The first maintenance is to erode the original roof waterproofing surface, re-pouring 60mm thick C20, P6 fine stone waterproofing concrete, placing bi-directional diameter 6mm @ 250mm steel, the surface with 1: 2.5 cement mortar to do the protection layer, both horizontal and vertical Every 6m set 20mm wide expansion joints. After 3 years from now, it was found that there was leakage at the roof of the daughters ’walls at the four weeks, and the construction workers thought that the arc r = 100mm should be made at the junction of the daughters’ walls and the roofs. Therefore,