Leakage make-up reservoir of horizontal flow tank of Fenghua District Waterworks expansion joint Leak stoppage method and maintenance technology Leakage repair company of sewage pool [Contact way: *** 】During concrete construction, expansion joints Construction joint The treatment of water seepage and temperature stress cracks is a worldwide problem. In order to reduce the occurrence of various cracks in the concrete construction process, we have made continuous research and improvement in the selection of raw materials and construction technology in the current concrete construction process, but it can not be completely avoided. For example, in the Three Gorges of the Yangtze River, Xiaolangdi of the Yellow River, Wanjiazhai and other large and medium-sized water conservancy and hydropower projects, Although various construction processes have been adopted and strict quality assurance system and control measures have been taken, various cracks have been found in concrete construction to varying degrees.
All kinds of cracks in the concrete not only have a negative impact on its structure, but also may cause direct harm to the whole building. Especially for hydraulic buildings, the cracks in the concrete, such as those in the underwater part, will cause water leakage along the cracks, and those above the water level will be caused by repeated changes in temperature, The capillary water in the crack will cause further damage to the structure, which may cause damage to the structure.
Chemical grouting is a very effective construction method for concrete defect treatment
。 The chemical grouting method described in this paper can use different treatment processes for different crack types, which not only reduces the labor intensity in the construction process, but also can ensure the quality of defect treatment, shorten the construction period, reduce the cost of treatment, thus obtaining good economic and social benefits.
2、 Types of concrete defects and cracks and causes of water seepage
The defects and cracks in general concrete mainly include expansion joints, construction joints and temperature stress cracks.
2.1 Expansion joint: it is a transverse joint set in the structure according to the structural layout, geological conditions, construction layout, construction strength, etc. In order to meet the requirements of structural deformation, there should be no rigid filler between joint surfaces generally, and only water stop facilities should be set near the upstream dam surface. In the process of operation, the water seepage is mainly caused by the following two aspects: a. In the original construction process, the waterstop was damaged due to various reasons; b、 land be launched Circumferential seepage formed along the concrete defect part of the waterstop.
2.2 Construction joint: the other type of water seepage joint is the horizontal construction joint of concrete. The main reason for water seepage is that the joint surface is not treated as required, and the joint surface is not treated as required during concrete pouring mortar It is less, and the height of concrete blanking is higher, which causes the partial separation of mortar and aggregate in the concrete, and insufficient vibration along some areas of the junction surface, resulting in partial seepage channels.
2.5 Temperature stress cracks: temperature stress cracks are the cracks that appear more in the concrete. During the construction process, due to the excessive temperature difference between the foundation and the inside and outside of the concrete, or due to other The stress release caused by the reason is the main reason for concrete temperature stress cracks. According to the different forms of thermal stress cracks, thermal stress cracks can be divided into surface cracks, deep cracks and through cracks.
2.4 General principles of crack treatment
According to different crack types and locations, the treatment methods are different. The following principles should be followed for concrete crack treatment:
a. Surface treatment shall be carried out for cracks on the surface where there are requirements for weathering prevention, seepage prevention, impact resistance and wear resistance. Professional undertaking: basement leak stoppage, tunnel leak stoppage, sewage pool leak stoppage, culvert leak stoppage, pool leak stoppage, water leak stoppage, dock leak stoppage, mine leak stoppage, cable trench leak stoppage, civil air defense engineering leak stoppage, expansion joint leak stoppage, junction joint leak stoppage, fracture leak stoppage, pump house leak stoppage, settlement joint leak stoppage, dam leak stoppage, underground engineering leak stoppage, elevator shaft leak stoppage, junction joint leak stoppage Cooling tower plugging, construction joint plugging, underwater plugging and other waterproof plugging projects! We are committed to the research of water leakage and other problems in brick concrete structure buildings such as civil air defense basements and tunnels, and are specialized in the promotion and application of nano back pressure grouting technology to help you solve the problem of water leakage. We are willing to make our due contribution to the innovation and application of waterproof and leak stoppage technology in China together with our domestic colleagues! The company has strong leak stoppage under pressure, tunnel leak stoppage, dock leak stoppage, pump room leak stoppage, mine leak stoppage, basement leak stoppage, cooling tower leak stoppage, cable trench leak stoppage. Waterproof and leak stopping construction force of buildings. With advanced technology, scientific management, excellent construction team and high-quality service, the company will strive to win with quality and keep improving. We are willing to establish various forms of business cooperation with friends from all walks of life.
Leakage repair on the wall of the incoming water tank, leakage stoppage of the water plant water tank, Yancheng Zhiruixiang Waterproof and Leakage Stopping Water plant new pool shrinkage leakage leak repair construction plugging company national first grade waterproof qualification! National free 24-hour contact information: *** National unified telephone number: *** The company has a national office: East China, South China, Central China, North China, Northwest leak stoppage company with advanced technology, reasonable price, integrity and compliance! Plugging company more professional plugging group! Construction scheme and product quotation. We are willing to have a pleasant cooperation with your company for mutual benefit and win-win results. Yancheng Zhiruixiang Waterproof and Leak Stopping Engineering Co., Ltd It is one of the first batch of enterprises with the first level of safety qualification for hanging work at heights of Jiangsu Administration of Work Safety, and the second level of professional qualification related to China's anti-corrosion construction power system.
1、 Brief Introduction of Water Soluble Polymer Chemical Grouting Plugging
High pressure grouting plugging is to use the high pressure power of machinery (high-pressure grouting machine) to inject water soluble polymer chemical grouting materials into the concrete cracks. When the grout encounters the water in the concrete cracks, it will quickly disperse, emulsify, expand and consolidate, so that the consolidated elastomer fills all the cracks in the concrete, completely blocking the water flow outside the concrete structure, To achieve the purpose of water stop and leakage stoppage. High pressure grouting plugging technology is a new waterproof technology of high-pressure airless grouting with international advanced level, which is a new technology used in water-soluble grouting materials in developed countries.
2、 High pressure grouting plugging principle:
Water soluble polymer chemical grouting material is a kind of polymer cutting flexible elastic material, which is composed of several molecular materials of polymer chemical agricultural production system, and is proportioned according to strict proportioning standards.
There are three kinds of commonly used multi polymer materials: propylene, crystal and coagulating glue. Polyhydroxy compounds are polyethers, which can have several functional groups and molecular weights. After the grout is poured into the concrete crack, it will meet with the leakage water to produce chemical reaction, release carbon dioxide, and form macromolecular organisms. So as to achieve the purpose of seepage prevention and plugging.
Water soluble polymer chemical grouting material is a kind of bottom viscosity, one component synthetic polymer flexible elastic material in the form of flexible elastomer. It has the characteristics of cross-linking reaction when encountering water, and foaming to form a multi-element network closed elastomer. When it is injected into the concrete crack structure under high pressure to extend until all the cracks (including those that are hard to detect by the naked eye) are filled, when it encounters water (water injection), it is accompanied by cross-linking reaction, releasing a large amount of carbon dioxide gas, generating secondary seepage pressure. The high pressure thrust and secondary seepage pressure press the elastomer into and fill all the cracks,
To achieve the purpose of leak stop It can be seen that the water soluble polymer chemical grouting material is one of the plugging materials with good performance. The leakage cannot be treated with ordinary materials. After the high-pressure grouting plugging technology is used, the leakage is successfully plugged at one time.
Treatment method for leakage of expansion joint of sewage pool 24-hour service contact: *** Zhiruixiang Waterproof and Leak Stopping Co., Ltd. The company specializes in the application and promotion of nano back pressure grouting plugging technology, has many years of construction experience, and is equipped with professional plugging and waterproof construction machinery and equipment to help enterprises solve the problem of water leakage. It is a trusted unit of waterproof plugging projects! The technical achievements can achieve remarkable economic, social and environmental benefits for enterprises.
24-hour business contact information of sewage tank expansion joint leakage treatment: *** 。
There are three sets of schemes on how to deal with leakage: plugging/drainage/plugging/drainage set. The methods are divided into traditional plugging methods and chemical grouting methods.
1. The traditional method of leak stoppage is to chisel the crack or leakage place to conduct surface leak stoppage, but the result is often to plug here, and then start to leak there. Because water can move irregularly in the cracks inside the concrete and seep out from the relatively weak parts.
2. Chemical grouting generally refers to injecting grout prepared by chemical materials into structural cracks by drilling holes and embedding grouting nozzles, so as to diffuse and solidify them and achieve the purpose of waterproofing, plugging, reinforcement and reinforcement. It is often used to repair deep cracks in concrete structures. According to the pressure and speed of grouting, it can be divided into high-pressure rapid grouting method and low-pressure slow grouting method. At present, chemical grouting method has been widely used in dam foundation, foundation reinforcement and seepage prevention, underground tunnel excavation, concrete defect repair and many other engineering fields.
3. For water leakage, it is advisable to cut a circular groove along the pipeline from the upstream surface, clean it, embed sealing materials, and level it with polymer cement mortar,
Flexible film waterproof layer shall be applied within 250mm.
4. If it is impossible to control from the upstream, the circular groove can be cut from the back surface along the pipeline periphery, cleaned up, and the grouting nozzle can be embedded in the circular groove with quick setting plugging material, and the polymer chemical grouting material can be poured to stop the leakage and stop the water; After no leakage is found through inspection, the sealing material shall be embedded and leveled with polymer cement mortar, and a flexible film waterproof layer shall be set.
5. Expansion joints shall be embedded with water swelling waterstop.
In view of the leakage of the above buildings, our company uses imported nano molecular chemical waterproof and plugging raw materials as the main agent and a variety of chemical materials to prepare A and B liquids. When the two liquids are mixed, polymerization reaction occurs. The initial setting is 30 seconds, and the reaction is completed in 2-3 minutes, and the final gel is formed. The grouting is injected into the structural layer in the form of water solution, the slurry viscosity is low, the permeability is good, and the crack below 0.1mm can be injected; The slurry can be coagulated under the conditions of moisture, high water speed and large amount of water; The gel also has the characteristics of good impermeability, water expansion, corrosion resistance, etc. The compressive strength of the gel is 0.01-0.06MPa, and the tensile strength is 0.02-0.04MPa. Special high-pressure grouting equipment is used to inject the same amount of water into the leakage part, so that the particles between the cracks and the soil can be combined together. Some of the cracks and pores in the concrete can be effectively closed to improve the bearing capacity of the soil. * At last, the leakage will no longer occur for more than 20 years, so as to achieve the purpose of completely stopping the water, avoiding the worry of the construction enterprise and the owner about water leakage!
Treatment method of expansion joint leakage in sewage pool
24-hour business contact: ***
