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河北省某幼儿园综合楼工程,是石家庄市建筑工程公司承建的一幢市优工程。当工程交付使用半年后,第二层一间活动室的水磨石地面却出现了一条极其规则、宽1毫米的裂缝。该公司对这条裂缝十分重视,邀请工程建设监理和设计单位进行了现场观察和检验。凿开水磨石面层后发现,下面的细石混凝土垫层裂缝正好贯通在水泥砂浆冲筋这条线上。从破损的材料看,细石混凝土找平层强度等级达到
The Kindergarten comprehensive building project in Hebei province is a city-level project built by Shijiazhuang Construction Engineering Company. When the project was delivered for six months, a very regular, 1 mm wide crack appeared in the terrazzo floor of an activity room on the second floor. The company attaches great importance to this crack and invites engineering construction supervisors and design institutes to conduct on-site observation and inspection. After we opened the terrazzo surface, we found that the cracks in the fine stone concrete cushion below penetrated the line of cement mortar. Seen from the damaged material, the fine stone concrete screed has reached a level of strength