综合管沟变形缝施工技术交底.doc

交底内容：
1. 综合管沟工程每约30m分为一段，段与段之间设置变形缝，具体变形缝位置设置见设计图纸中图号为“RC501C-Z-07”中的《中环路综合管沟变形缝位置表》及其说明以及相关的设计变更通知单。
2. 综合管沟及其附属工程中的变形缝，包括橡胶止水带、双组份聚硫密封膏、聚乙烯发泡填缝板等，变形缝所用材料应符合《地下防水工程质量验收规范》（GB50208-2002）的要求。变形缝所用产品都应严格按照生产厂家推荐的方法装卸、放置、装配和安装。
3. 变形缝嵌缝材料施工前，应对变形缝进行检查，使其符合图纸要求，并将预留凹槽内混凝土打毛，清扫干净。
4. 止水带中心线应和变形缝中心线重合，止水带不得穿孔或用铁钉固定；宽度和材质的物理性能应符合设计要求，且无裂缝和气泡。
5. 在进行双组份聚硫密封膏材料嵌缝施工时，缝内两侧应平整、清洁、无渗水，并涂刷与嵌缝材料相容的基层处理剂；嵌缝时应先设置与嵌缝材料隔离的聚乙烯泡沫塑料板；嵌缝应密实，与两侧粘结牢固。
6. 聚乙烯发泡填缝板橡胶止水带中心线和变形缝中心线重合并用模板固定牢固。
7. 绑扎变形缝钢筋时要保护已安装好的变形缝材料。
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Cards on the table contents:
1. Comprehensive trench of about 30m each into a project, set the deformation joint between paragraphs and paragraphs, the specific deformation joint location settings, see the design drawings in number "RC501C-Z-07" in "in the loop of Combined duct deformation Gap Position Table "and its description, and design changes related to notice.
2. Combined duct and ancillary works in the deformation joint, including the rubber water stop, two-component polysulfide sealant, such as polyethylene foam sealing plate, deformation joint materials used should be consistent with "underground waterproof construction quality acceptance "(GB50208-2002) requirements. Deformation joint product should be used in strict accordance with the manufacturers recommended method of handling, placement, assembly and installation.
3. Deformation joint filling material before construction, deformation joint inspections should bring it in line drawings, and concrete hit the groove, hair aside, cleaned up.
4. Sealing and deformation joint center line center line should coincide water stop shall not be perforated or nails fixed; width and physical properties of materials should meet the design requirements, and no cracks and bubbles.
5. Conducting two-component polysulfide sealant caulking materials, construction, fissures on both sides should be smooth, clean, no water seepage, and brushing with the filling material compatible with the primary treatment agent; caulking should first set and caulking materials, polyethylene foam isolation plate; caulking should be dense, with both sides firmly bonded.
6. Polyethylene foam sealing plate deformation joint rubber water stop center line and center line of fixed firmly re-merge with the template.
7. Lashing deformation joint reinforcement has been installed to protect when the deformation joint material.
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