Discussion on the construction of waterproof paper to write network management _

Papers to write Net: Abstract: This paper during the construction of waterproof construction preparation, construction, operation and final acceptance of the management has done a detailed analysis and elaboration.

Keywords: waterproof construction management

0 Introduction
Waterproofing is a systems management project, its maintenance, materials, design, management and construction of a project such as the occurrence of any flaws, both the overall water quality of the projects will adversely affect the project and thus lead to leakage. "Design is the premise , the material is the foundation, construction management is key, "has become a common consensus, therefore, scientific management of water project construction quality assurance, but also to improve efficiency, reduce the material consumption, so the cost savings.

Waterproof construction management including construction preparation, construction, operation, completion and acceptance of three links.

1 construction preparation
Create favorable conditions for the construction, to ensure smooth waterproof construction, part of the pre-construction preparation is a prerequisite to ensure the quality of construction, and indispensable. Waterproofing in accordance with the requirements and technical characteristics of the progress of the construction of power and a reasonable allocation of deployment and organization, as waterproof construction to create technology, management, personnel and material advantage.

1.1 Technical preparation
1.1.1 Construction and technical personnel should be through an objective reality, such as the importance of the building and its geographical location, roof Engineering characteristics of the <<Roof Engineering Quality Acceptance>> GB50207-2002, <<ground water Engineering Quality Acceptance>> GB50208-2002 and other related construction technology and practices and state regulations, conduct detailed research and study on the waterproof construction of technical norms and standards when conducting a comprehensive understanding and knowledge.

1.1.2 Construction site technical staff to use drawing Mixed, technical standards and construction process, node, detailed construction, material selection, construction and Engineering fortification levels to fully grasp the development of waterproof construction program must be reasonable and feasible, technical protection measures for to be a clear division, such as process division, the construction sequence, construction progress, operation points, etc., need to take into account all the details of waterproofing and fully implement the design intent.

1.2 Site Preparation
On the construction site construction waste and debris clean-up thoroughly, to ensure the construction of the moisture content of grass-roots level, such as flatness and slope design and construction specifications and line. Grassroots not appear hollowing, loose, uneven, peeling, sand, etc., should be clean clean and smooth strong addition, yin and yang made obtuse angle corner and a circular shape, the quality of the grass-roots project for construction of water quality from the direct effect.

1.3 staff to prepare
Optional waterproof construction team must have a high professional quality and technical level, a strong sense of responsibility and deep construction quality waterproof and pre-construction, through technical tests and drawing Mixed, technical measures and the development of waterproof construction program must be reasonable and feasible, the construction team of technical tests, to be specific and timely. if necessary, can be carried out before the construction of technical training and guidance to ensure waterproof construction teams according to technical specifications for the quality and quantity of skilled and waterproof construction.

1.4 Material preparation
1.4.1 Water should be the variety of materials, performance, characteristics, scope to use, in addition, need to consider waterproofing the structure in which the structure and topography climate and geographical environment.

1.4.2 waterproofing project, be sure to use the technology with the performance of national authorities and the factory test report certificate of waterproof materials and auxiliary materials, waterproof materials, varieties, specifications and performance with national requirements and standards of the existing product line. To avoid low-quality waterproof materials to the construction site, the need to re-examination request sampling approach waterproof material. They also need to ensure that the waterproof material and auxiliary materials and can be compatible.

1.4.3 the best use of the Ministry of Construction to promote the use of environment-friendly waterproof material, such as the polymer cement (JS) waterproof coatings, EPDM rubber (vulcanization type) waterproof membrane, plastic body (APP), elastomer (SBS) , polyurethane waterproof coating, PVC waterproofing membrane (Ⅱ) and modified bitumen membrane (Ⅱ) and so on.

1.4.4 will be used for waterproofing construction tools to prepare fully.

1.5 Other provisions
Waterproof construction site of the geography, weather and other objective conditions do full consideration, waterproofing layer anti-sabotage equipment, wind, rain and fire prevention measures.

2 waterproof construction operations
Construction site construction, effective and reasonable control and management of construction safety, progress and quality of coordination processes and materials to ensure the quality of water works, so that cost savings and improve efficiency. General waterproofing process: primary treatment → → sweep the grass roots and node parts of the preparation of adhesive waterproofing waterproofing materials → Stones → → node parts of the examination process water → water project acceptance test.

2.1 Construction schedule management
Management and control of on-site construction schedule, in order to reduce costs, ensure timely completion of waterproof construction, to be reasonable for the deployment of forces and distribution of construction, waterproofing can be sub-grouped way. Links to free download http://www.hi138.com 2.2 construction and technical operation
Waterproofing should focus on water principles, namely prevention, anti-row combination, with soft tune, combined rigid-flexible, multi-channel fortified, composite timber, co-deformation, joint protection.

2.2.1 The concrete structure from the water
① water to waterproof concrete and rigid self-bearing, there is a wide range of source materials, and durability, ease of construction, and cost is not high, especially for underground waterproofing, concrete structures may be preferred.

② compacting agent, reducing agent, and shrinkage-compensating fiber (mixed UKA, AEA) are commonly used in waterproofing concrete waterproofing concrete, in addition to the concrete surface and infiltration water repellent rigid crystalline concrete waterproofing agent.

2.2.2 Flexible Waterproof
Including coatings and flexible waterproof membrane waterproofing, waterproofing of toughness, corrosion resistance, good tensile strength and impermeability, and to some extent able to withstand deformation, vibration and pressure, to facilitate the construction of waterproof coatings, waterproofing structural shapes it is not affected.

① In the large area of ​​paving waterproof material, should first deal with the enhancement layer, an additional layer, drainage slots and nodes, according to from far and near, high to low operational processes for construction, the wall should follow from the low elevation to high-order construction, waterproof material to minimize the lap joint.

② slope in accordance with waterproofing waterproofing membrane to determine the direction of the Stones, no more than 15% of the slope paving and roof waterproofing membrane suitable parallel, if more than 15% of the slope, paving the vertical with the appropriate roof , greater than 25% of the slope is not suitable for tiling waterproofing membrane, or membrane should be fixed.'s best not to roll on the lower vertical tiling, if parallel to the paving, should be consistent with the direction of flow volume overlap material.

③ often overlap waterproofing membrane width> = 100mm, adjacent to the lap joint waterproofing membrane to be staggered width of about 1 / 3 to 1 / 2, the sealing material to seal lap seam width of about 100mm.

④ nail pressure head of fixed income at the waterproofing membrane, and the use of sealant to be filled, dense.

2.3 Construction supervision and inspection of projects
① waterproof construction Engineering and construction process and operation are consistent with design requirements. ② waterproof materials and auxiliary materials, storage and use is consistent with the quality management requirements. ③ particular emphasis on the detailed structure of the waterproofing tests, such as membrane lap, gutter, yin and yang corner, fell into the water, expansion joints and pipe roots. ④ of auxiliary materials and waterproof materials to conduct random checks and inspections, to avoid cutting corners or the application of low-quality materials. ⑤ the waterproof layer construction, a waterproof layer of each completed construction on its acceptance and inspection to ensure that qualified and then start another project construction. ⑥ timely resolution inspection found problems, so as not to bring to troubles.

3 water project acceptance
① Check the breakdown of water storage projects to ensure smooth drainage system, and no water, no leakage. ② After completion of water works, construction supervision unit, construction unit inspection and acceptance, after passing to hand over. ③ waterproofing after acceptance, the need to archive storage construction records, inspection documents, supporting materials and waterproof material re-examination test reports and factory quality certification. ④ waterproofing acceptance, the next process in order to prevent the vandalism and other factors, the need to assign someone to carry out maintenance and management.

4 Conclusion
All in all, the scientific management of water project construction quality assurance, but also to improve efficiency, reduce material consumption, cost savings, therefore, should be prepared during the construction of water works construction preparation, construction, operation and project acceptance. Links to free download http://www.hi138.com