The construction method of the external thermal insulation board and the installation thermal insulation board of the external thermal insulation board shall undergo strict fire inspection and inspection, and pay attention to the safety construction and fire prevention during installation. The construction steps are as follows: (1) After the outer shear wall reinforcement is tied and the acceptance is passed, the concrete block can be tied on the steel bar to ensure the thickness of the protective layer of the main rib and the stirrup of the shear wall. The size of the spacer is generally 40mm×40mm, the spacer spacing is 400-600mm, and two 22nd lead wires are pre-buried in the pad (for the fixed fixed insulation board); (2) the insulation board should be installed in accordance with the positioning line of the outer wall. At the 600mm anchor, insert a 6mm "L" type steel bar (150mm in the long direction, 30mm in the hook), and brush the two parts of the insulation board through the anti-rust paint. The hook of the "L" rib is placed on the outer side of the insulation board, and the straight section is extended into the wall, and the 22nd wire is used to bind the wall reinforcement. The seam of the cold-rolled strip insulation board should be tight. The additional steel mesh is affixed with the 8th galvanized iron wire through the insulation board and the wall reinforcement; (3) The outer low-carbon steel mesh of the insulation board must be disconnected according to the floor height of the floor. (4) The yin and yang corners of the external wall and the window shall be attached with a corner net and a flat net. The length of the lap shall be ≥200mm.
Installation of large formwork (1) The large formwork should be configured according to the wall size and the thickness of the polystyrene board, and installed according to the control edge on both sides of the outer wall (generally 160 to 200 mm from the outer wall edge). The sling of the large formwork can not squeeze and damage the insulation board. After the templates on both sides of the outer wall are in place, the bolts are initially positioned. After the horizontalness and verticality of the large formwork are corrected, the final positioning of the bolts can be tightened. (2) The joint of the template should be tight, and the template and the insulation board should be tightly pressed to ensure that the concrete is vibrated and not leaking. The concrete pouring is generally carried out by premixed concrete. Under the premise of conformity with GB50204-92 "concrete structure engineering construction and acceptance specification", the following two points should also be noted: (1) The top surface of the thermal insulation board should have shielding measures, vibrating concrete Attention should be paid to protect the insulation board from damage; (2) When pouring concrete at the hole, it should be cut along both sides of the hole at the same time, so that the height of the casting on both sides is generally the same, and the edge of the vibrating rod should be more than 300mm from the edge of the hole.
150mm Wall Chaser Groove Cutting Machine
The 1700W 150mm Wall chasers are a twin bladed power tool which used to cut groove on brick, stone or concrete walls, perfect for electricians and plumbers, to lay wires or water pipes in the wall.
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