Settlement joint plugging, sealing joints design, construction scheme, Jiangsu Ding longtime plugging

Settlement joint plugging, sealing joints design, construction scheme, Jiangsu Ding longtime plugging one, after the completion of the main causes of leakage, the groundwater level shifting, garage float 100 ~ 200mm, due to the unbalanced weight and casing, leading to the coupling segment appears above 100mm vertical drop settlement, the settlement joint water stop pull in double-break. A large area along the water stop leakage. Second, waterproof plugging design according to the site survey results, the project also has a partial wall leakage, the main problem for the settlement joint water-stop concrete cracking, high-pressure groundwater seepage. Usually the traditional method of plugging surface is difficult to achieve results. To solve this problem requires a comprehensive analysis, seriously, blocking, anti-binding and comprehensive management to succeed. 1. First, plugging plugging, the first lot of the leakage point blocked by high pressure chemical grouting method. Cracks in concrete structures is one of the main causes of damage to concrete structures, these cracks caused by water leakage is very difficult to solve. Usually conventional plugging method is to place the cracks or water seepage plugging surface drilling results are blocked here and there and start leaking because of cracks in the concrete is no rule, water can freely move in the fracture string, oozing from a relatively weak parts. By means of chemical grouting material formulated chemical slurry grouting mouth buried by drilling, the use of pressure injected into cracks in the concrete, making it diffusion, solidification, to plugging, waterproof purpose. Commonly used to repair the deep cracks in concrete structures. The pressure and speed of filling can be divided into high and low pressure grouting method to slow rapid grouting method. The former is for deep cracks in concrete plugging leaks, which applies to structural reinforcement, the project is suitable for high-pressure fast grouting method. High pressure chemical grouting plugging can use continuous high pressure grouting machine produced chemical slurry is poured into the gap inside the concrete, and squeeze out completely along the seam of water runoff channels and react with water to form a gel, the original water seepage completely fill the gap, achieve permanent sealing purposes. 2, after the concrete slab moisture seepage plugging grouting, according to plasma leakage cracks, leaks, leaking the fracture process. 3, the production is completely blocked after water stop leaking, to be treated surface is dry, make a resilient stop, to replace the rubber water stop has been destroyed, adapt and stretch three building settlement, construction technology 1, plugging: ① clean up: a detailed examination, analysis of leakage, chiseled concrete settlement joints filled wood and surface projections and precipitates, identified grout hole location and spacing. Clean needs of the construction area, to ensure clean surface moist. Drilling ②: Use hammer drilling and other drilling tools along the sides of the cracks, the drill diameter ￠ 14mm, preferably in the borehole angle 30 ° ± 10 °, drilling depth to pass through the original filler prevail, but can not break original rubber water stop; drilling spacing of about 200-300mm. ③ buried Tsui: installation in drilled hole filling nozzle (also known as sealing needles), and use special tools to tighten, so that no gap between the filling nozzle around the borehole, watertight. Try to make the slurry nozzle from the original water-stop lately. ④ wash joints: use pressure washers to 6MPa pressure injection of water into the filling nozzle in a clean water point to observe the water situation in the dust and clean the seam. ⑤ Sealing: cracks in the surface of the seam wash with water seepage impermeability 1 (plugging type) will be closed process, to prevent run pulp. ⑥ Filling: Using high-pressure grouting machine to filling the hole filling stanch perfusion PU glue. Facade filling the order from the bottom up, the plane can be started from one end of the hole one by one. After the start of the plasma adjacent holes, keep the pressure 3-5min, to stop this hole grouting, grouting Injection in the neighboring hole. ⑦ demolition Tsui: grouting is completed, confirm no leakage can be removed or knocked filling nozzle, and clean up spills out of the cured grout. 2, the base surface treatment ① sealing: (waterproof) grouting mouth of repairing the barrier on the 1st, sealing process. ② After plugging work is completed, to observe a week or so, for the wet surface caused tiny cracks were treated with cement waterproof PU coating. ③ settlement joint located at the bottom layer of isolation tape. 3, field production water stop with DM-600 sealed by PU pouring sealant construction, the thickness of 30 ~ 40mm, need two to three minutes to complete filling them; After construction, cracks form a thick elastic sealing quality band, long-term adaptation building settlement stretching, and excellent water resistance of the material; (4) protection ① water stop external water stop and then set up an isolation tape. ② in isolation tape outside filled polymer mortar. Mobile: 15365765466 Tel: 0515-88297688 QQ: 3147994242 Contact: Mr. Wang Website: http: //www.jsdinglt.com/ Address: South New Tongyu Road 139