Expansion joints on the exterior walls to prevent wind and rain invaded the room, asked to use a flexible, hydrophobic, can not easily be extruded material caulking seams. Flax materials commonly used in asphalt, bitumen soaked wood wool board, neoprene, foam and the like. Seam must use galvanized iron, aluminum or plastic panels as cover joint treatment. Interior joints processing varies with different interior decoration, the choice of wood, wood, plastic sheeting, metal plates cover seam. Ground floor joints can be caulked seam in the asphalt flax, etc., spread activity covers or rubber strips to prevent dust down to the next floor. Roof joints, use galvanized iron, aluminum or precast reinforced concrete panels, etc. for cover sewing process, make focused waterproof. Underground construction, basement, etc. The expansion joint, for water requirements, often in the outer layer of waterproof structure or bottom overlay glass cloth linoleum, rubber sheet, galvanized iron sheet, copper sheet, and the use of a buried or removable seal band (such as rubber, plastic, metal, etc.), mortar and asphalt, bitumen soaked asphalt flax or wood fiber boards and other caulking seams.In situ monolithic reinforced concrete, since concrete poured over a period of time after a larger shrinkage, after only stabilized, can take advantage of this feature, along the length of the reinforced concrete structure is divided into paragraphs, leaving the middle of the seam, the first phase of construction to be 1 to 2 months, then watering commissure. This temperature is only temporary during the construction reserved contraction joints, seams after pouring called or known as contraction band. After pouring slit width is generally from 50 to 100 cm, slit spacing of about 20 to 25 meters, and as far as possible during the construction and seams combination set; seam filler, available aluminum powder mixed concrete. Set in a building expansion joint and the maximum spacing issues, the current understanding are not consistent, national rules and practices is not the same. Such as the Federal Republic of Germany, the Soviet Union and some Eastern European countries, to take strict pitch joints to prevent the building cracks.Dip the outer facades common asphalt flax or wood wool board and foam strips, ointments flexible waterproof material sewn plug, when the gap is wide, available galvanized iron, aluminum skin cover for joint treatment. Available leather interior metal or wood as a cover seam. Floor structure for floor joints.Expansion joint position size should be consistent with the walls, roofs and Deformation. Seam with ointment, asphalt flax, metal or plastic deformation of the compressible flap and other materials do Sealing process, upper cover or activities such as rubber to prevent dust fall. Cover strip seam roof can only be fixed at one end to ensure that the free expansion joints at both ends of member. Roof construction joints. Not generally accessible roof plus masonry parapet expansion joints, roofing and flashings essentially the same as conventional practice, except that the cover seam metal plate or concrete tiles, etc. should allow free expansion deformation without causing bleeding drain, then use the Master roof caulking ointment caulking and waterproofing attention.Related Articles:Infrared pavement repair equipmentstreet asphalt paving machineflexible mini mobile asphalt mixing plant for sale in india
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