The company specializes in plugging leaking underground garage welcomes your service hotline: 13961999789 Chow in concrete construction, expansion joints, construction joints and seepage treatment temperature stress fracture is a worldwide problem. To the maximum extent possible to reduce the occurrence of concrete during construction of various cracks in the concrete construction process now, even though we in the selection, construction technology of its raw materials are carried out constant research and improvement, however, can not completely be avoided, such as in Three Gorges, Xiaolangdi and Wanjiazhai medium-sized hydropower projects and other projects, although the use of a variety of construction technology, strict quality assurance and control measures, but in concrete construction are found in varying degrees various cracks generation. Concrete cracks generated in a variety of not only its structure had a negative impact on the entire building may also have a direct harm, especially hydraulic structures, due to the generation of cracks in concrete, such as the underwater part located cracks will cause water leakage along the cracks, crack above the water line, then due to repeated changes in temperature, so that the cracks in the structure of capillary water to cause further damage, which may result in damage to the structure of matter. Chemical Grouting is a very effective method of concrete construction defect process. Chemical grouting methods described herein can be for different types of cracks, using their different treatment process, not only reduces the labor intensity of the construction process, but also to ensure the quality of processing defects, shorten the construction period, lower processing costs, to obtain good economic and social benefits. Second, the type of defect causes of concrete cracks and defects in general concrete seepage cracks appearing are: expansion joints, construction joints, thermal stress cracks. 2.1 joints: It is arranged according to the lateral seam construction, geological conditions and construction layout, construction intensity set in the structure, in order to meet the requirements of structural deformation, among seam surface generally should not have rigid filler, just upstream of the dam Sealing facility located near the surface. During operation, the water seepage because of the following two aspects: a, original construction process, due to various causes damage sealing sheet; b, groundwater along the sealing piece formed part of the concrete seepage around the defect site. 2.2 Construction Joints: Another concrete seepage seam is horizontal construction joints, their main reason for water seepage, combined with failure to require surface treatment, concrete pouring process, combined with less mortar and concrete materials under high altitude, resulting in partial separation of mortar and concrete aggregate, and lack some of the area along the joint surface vibration, causing part of the seepage channel. 2.5 Temperature stress cracks: cracks in concrete up to that temperature stress cracks in the construction process due to the temperature difference between the foundation and concrete inside and outside temperature is too large or due to other causes such as stress relief is the main concrete temperature stress cracks. According to temperature stress cracks form of expression is different, can be divided into surface temperature stress cracks *, deep, penetrating three. General principles 2.4 crack crack treatment according to the type and location of different methods of handling them is different, for concrete crack treatment should follow the following principles: a. Surface weathering, seepage, erosion, abrasion requirements should be part of the crack surface treatment. The company is willing to plugging years rich experience in construction, first-class technology, first-class management, first-class service for the various owners of service and dedication to provide the most satisfied with the best, most worry about the benefits of products for domestic and international customers. I. Project Overview City Grandview Plaza PARKnSHOP built basement for years, affected by a variety of reasons, some local produce leakage. Affect the normal use of the building. Now for the actual site of the leaking concrete body parts grouting plugging construction specific construction program. for selection. Second, plugging leaks underground garage construction solutions company The field observation to understand, because of water seepage concrete panels appear, blisters or cracks appeared along the concrete slab channel leakage. Our company based on years of construction experience, decided to use chemical grouting method for its construction, the leakage blisters or cracks channel blocked, to plugging purposes. ? 1. The selection of materials for this type of leakage current can better plugging reinforcement materials there are two types, one is Sinochem "656" class of chemical wood pulp, the material with water, excellent workability; Another HY polymer material is wood pulp, the material of high strength, excellent adhesion. In of "656" based chemical pulp material has the following characteristics: ① a small viscosity of the slurry having a viscosity of 1.2CP, and before curing cement has remained the same, and therefore has a good permeability under pressure can reverse leakage poured channel, full channel and blocked the leakage channel consolidation, so that the original leak site no longer leaking. ② water shutoff material consolidation can be accurately controlled in the range of tens of seconds to several minutes, and completed the consolidation occurred in an instant. ③ good consolidation shutoff body impermeability, permeability coefficient of 10-9 ~ 10-10cm / s. ④ concretion body durability, long-term use, does not pollute the environment. ⑤ concretion body against bacteria, acid and alkali erosion. ⑥ concretion body has good elasticity, water micro-expansion, to prevent recurrence of leakage crack deformation. HY polymer grout material has the following characteristics: ① bonding method can crack chemical grouting, bonding defects, but also low-grade mortar can penetrate body reinforcement, improve body achieve concrete results label, which has excellent viscosity knot capability, strength and sealing performance of water. ② for concrete reinforcement to protect the body, the slurry bond along with reinforced concrete body loose, to defect penetration, because this polymer material is also a good anti-corrosion materials, therefore, able to protect steel and concrete reinforcement and increased body bonded double effect. ③ different types of concrete body cracks, defects bonding, bonding method grouting cracks in the concrete body, defects with a wide range of use on the adhesive can bond as large as a few centimeters large cracks, joints, less than 0.02mm small cracks. ④ dynamic load changes in opening and closing Repair: Can grouting body is bonded to the concrete dynamic load opening and closing the case, such as the railway bridge unabated load operation performed warranty. ⑤ severely damaged concrete body cracks, loose bond defect repair: the use of grout can be met, high permeability repair more serious, such as broken concrete burned body. ⑥ temperature range: for concrete cracks, defective bonding material long-term use in a range of -20 ~ 80 ℃. ⑦HY grouting material body reinforced concrete, high strength, good permeability, curing time can be adjusted, the mechanical properties of the material as follows: In this project, the construction will be based on the specific circumstances, the use of these two materials, a single or two kind used in conjunction with optimum sealing effect. 2, plugging leaks underground garage construction process ①, clear the area: in order to find the leakage site. ②, look for leaking parts: a closer look at the leaks and leaks concrete slab cracks in the concrete surface water seepage at the open with a hammer, showed observed water seeping path, in order to accurately open leaking concrete surface. ③, laying filling mouth: scuttling leak site, and try to find the leak source, and then buried in accordance with a certain distance of filling the mouth. ④, slurry preparation: according to project needs, will deploy related materials into a main agent and a curing agent of the two components, and adjust the setting time and strength good consolidation slurry. ⑤, grout: mouth filling material to be buried after a certain intensity, can be carried out grouting. After the deployment of the main good when filling and curing agent were mixed by a certain percentage, using a special grout pump immediately after mixing, the slurry mixed grout poured from the mouth of a crack in the leakage area until slurry solidification, ie can be carried out under a filling mouth filling. Grout slurry should regulate clotting time to ensure that the slurry can be poured into cracks in the whole, and can pass through the crack, the consolidation of sand along fissures and cracks outside. Both to protect the closed steel, and can greatly improve the effectiveness and long-term sealing. ⑥, sealed tube and surface treatment: After filling spout closed with cement mortar and smooth the nozzle. ⑦, the above process is completed, re-checked and found a slight seepage secondary place, repeating the construction process until no leakage. Third, plugging leaks underground garage construction organization and quality assurance measures 1, the construction team reinforced by rigorous professional and technical training waterproof, and have some practical experience in the construction of staff induction operation, known structural features and node detail approach. 2, the construction team captain facility worker who is responsible for the overall construction, technical quality supervision and inspection of the construction process and to coordinate the work of the construction side. 3, the use of materials of construction quality should meet the design requirements. 4, when the pipe to find the leak source, be sure to block the water from the source to reduce rework. 5, when filling the slurry into the interior to make the leakage path, to ensure consolidation of the slurry body has sufficient depth and thickness. Fourth, the security measures in a civilized construction, temporary construction facilities, materials piled up, etc., should be arranged in accordance with the Party designated venue. 2, before the official start, safety procedures must be carried out before entering the work of education workers. 3, in strict accordance with the construction practices for construction. 4, note that the dormitory, workshops health, so civilized construction. 5, pay attention to prevent fire, strengthen fire inspection, to prevent fire hazards. 6, flammable materials and other chemical materials neatly stacked to unify, to prevent others from misappropriation. 7, strict compliance with the rules and regulations within the plant, subject to leadership and management. The company specializes in plugging leaking underground garage Welcome