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《地面与楼面工程施工及验收规范》第4.0.3条规定:“在预制钢筋混凝土板上铺设找平层前,必须做好板缝间的填嵌和板端间的防裂构造装置,符合设设要求后方可继续施工。板缝间应用不低于200号细石混凝土填嵌。填缝后应养护,在常温下一般养护3天。如板缝较宽,必须支模填缝”。
“Section 4.0.3 of the Code for Construction and Acceptance of Ground and Floor Engineering” stipulates that: “Before laying the screed on prefabricated reinforced concrete slabs, it is necessary to complete the filling between slabs and joints and the anti-cracking device between plate ends. Only after meeting the design requirements can the construction work be continued, the board seams should be filled with fine stone concrete of no less than 200. After filling, the joints should be maintained and generally maintained for 3 days at room temperature. If the board seams are wide, they must be filled with joints. ".