Huaying Building Materials Co., Ltd. is specialized in installing deformation joints, Skirting line And other new scientific and technological building materials. Our company has a strong technical force. The company has 5 senior engineers, 12 safety officers, 93 technicians who have been engaged in the installation of deformation joints for more than 8 years, 45 technicians who have been engaged in the installation of deformation joints for more than 6 years, and 102 technicians who have been engaged in the installation of deformation joints for 4 to 2 years 。 The company has perfect installation services. The company's installation scope is summarized as public transport construction, and relevant departments door Institutions, * * * office buildings, commercial buildings, stadiums, and * * * standard workshops.
Our company welcomes engineering construction units, construction companies, etc. to choose our installation team. Huaying provides customers with better quality and better installation services.
Introduction to deformation joint installation: Deformation joint expansion joint The structure of the building must meet the requirements of horizontal deformation of the building structure. The expansion joints on the exterior walls are required to be filled with elastic, hydrophobic and hard to extrude materials to prevent the wind and rain from entering the interior. Common materials are asphalt Hemp fiber, asphalt soaked wood fiber board Neoprene , foamed plastics, etc. The seam shall also be covered with galvanized iron sheet, aluminum plate or plastic plate.
The treatment of expansion joints in the interior wall varies with the interior decoration, and the joints can be covered with wooden strips, wooden boards, plastic plates, metal plates, etc. The expansion joints on the floor can be filled with asphalt hemp fiber, etc., and covered with movable cover plates or rubber strips to prevent dust from falling to the next floor. The expansion joints on the roof shall be covered with galvanized iron sheet, aluminum plate or prefabricated reinforced concrete plate, with emphasis on waterproofing. For the expansion joints at underground buildings, basements, etc., in order to meet the waterproof requirements, glass cloth linoleum, rubber sheets, galvanized iron sheets, copper sheets are often paved on the outside or bottom of the waterproof structure layer, and embedded or removable waterstops (such as rubber, plastic, metal, etc.) are used, and the gaps are filled with asphalt mortar, asphalt hemp or asphalt impregnated wood wire board.
In the cast-in-place integral reinforced concrete building, because the concrete has a large shrinkage deformation after pouring for a period of time, it will become stable later. This feature can be used to divide the long direction of the reinforced concrete structure into several sections, leaving a joint in the middle, and then pouring the joint after 1~2 months of the early construction. This temporary temperature contraction joint, which is only reserved during construction, is called post pouring joint or contraction band. The width of the post cast joint is generally 50~100 cm, and the joint spacing is about 20~25 m, and it should be combined with the joint during construction as far as possible; The joint filling material can be concrete mixed with aluminum powder.
At present, there are different understandings on the problem of setting expansion joints in buildings and their larger spacing, and the regulations and practices of different countries are also different. For example, the Federal Republic of Germany, the Soviet Union and some Eastern European countries have adopted strict expansion joint spacing to prevent cracks in buildings. In Japan and the United States, temperature stress is considered in the calculation, and expansion joints are generally not set. Britain and France are more flexible. Since the 1950s, China has discussed the theory of building expansion joints, proposed a preliminary theoretical basis, and solved some practical engineering problems. When the practical problems are relatively wide, galvanized iron sheet and aluminum sheet can be used as cover joints. The inner wall can be covered with metal sheet or wood strip. Expansion joint structure of floor.
The size of expansion joints shall be consistent with the deformation joints of walls and roofs. The joint shall be sealed with compressible and deformable ointment, asphalt hemp, metal or plastic adjusting piece and other materials, and the movable cover plate or rubber shall be paved on it to prevent dust from falling. The joint covering strip at the ceiling can only be fixed at one end to ensure the free expansion of members at both ends of the joint. Roof expansion joint construction.
Low walls are generally built at the expansion joints of inaccessible roofs. Waterproofing and flashing of roofs are basically the same as conventional practices. The difference is that the iron sheet concrete slabs or tiles at the joints should allow free expansion and deformation without causing leakage. The accessible roofs should be caulked with caulking ointment and attention should be paid to waterproof treatment.
