External insulation wall having grid-reinforced insulation board mechanically anchored

摘要

An external insulation wall having grid-reinforced insulation board anchored with mechanical devices includes: a base course wall (1), wherein a leveling and bonding layer (2), grid-reinforced insulation boards (3), plastic expansion anchor bolts (4), a thin plaster protecting layer (5), and a finishing layer (6) are provided on the base course wall (1) from inside to outside in turn. Holes are dilled on the grid-reinforced insulation boards (3), and the grid-reinforced insulation boards (3) are directly fixed on the base course wall with the plastic expansion anchor bolts (4), in such a manner that all load of an external insulation system is born by the plastic expansion anchor bolts (4), and the plastic expansion anchor bolts (4) transmits the load to the base course wall (1). The external insulation wall can solve technical problems of low bearing capacity and difficult surface treatment caused by an old base course wall.

主权项

1. An external insulation wall having grid-reinforced rockwool insulation board mechanically anchored, comprising: a base course wall, wherein a leveling and bonding layer, grid-reinforced rockwool insulation boards, plastic expansion anchor bolts, a thin plaster protecting layer, and a finishing layer are provided on said base course wall from inside to outside in turn;
a surface of said base course wall is applied with 3˜9 mm thick polymer mortar as said leveling and bonding layer, and a leveling of said base course wall and an auxiliary bonding of said grid-reinforced rockwool insulation boards can be finished at one time to ensure a flatness of said grid-reinforced rockwool insulation boards; then, said grid-reinforced rockwool insulation boards are adhered to said base course wall, wherein grid reinforcers are provided in a surface layer of each grid-reinforced rockwool insulation board, and said surface layer with said grid reinforcers inside faces outwardly, so as to form a void-free insulation layer, said grid-reinforced rockwool insulation boards are rectangle boards paved in a lateral direction, vertical joints between said grid-reinforced insulation boards are staggered, and an optimum staggered vertical joint spacing is 300 mm or 400 mm; then said grid-reinforced rockwool insulation boards are anchored with mechanical fixing devices, wherein said mechanical fixing devices are said plastic expansion anchor bolts, which means that holes are drilled on said grid-reinforced rockwool insulation boards for installing said plastic expansion anchor bolts, wherein a plastic disc platen having holes is provided on an outer end portion of each said plastic expansion anchor bolt, in such a manner that said grid-reinforced rockwool insulation board is directly fixed on said base course wall; finally, said grid-reinforced insulation boards are plastered with said thin plaster protecting layer, said grid-reinforced insulation boards are covered with said plastic expansion anchor bolts, in such a manner that an insulating layer is protected, said thin plaster protecting layer is made of polymer anti-cracking mortar comprising a reinforcing mesh playing roles of crack-resistant, waterproof and impact resistance; said grid-reinforced rockwool insulation board has a length of 800˜2400 mm and a width of 400˜1600 mm; said plastic expansion anchor bolts are arranged on said grid-reinforced rockwool insulation boards and in joints between said grid-reinforced rockwool insulation boards, an anchoring spacing between said plastic expansion anchor bolts arranged parallelly in a longitudinal direction and a lateral direction is 200˜450×200˜450 mm, a number of said plastic expansion anchor bolts is more than 8 per square meter, a number of said plastic expansion anchor bolts in each vertical joint is more than 3, a spacing between said plastic expansion anchor bolts in said vertical joints is less than 400 mm, said plastic expansion anchor bolts are provided at four corners of said grid-reinforced rockwool insulation board, a diameter of said plastic expansion anchor bolt is more than 8 mm, a standard value of a tensile bearing capacity of a single anchor bolt is more than 0.6 KN, a diameter of said plastic disc platen having holes provided on said outer end portion of said plastic expansion anchor bolt is more than 60 mm, and an effective anchoring depth of said plastic expansion anchor bolt is more than 25 mm; and said base course wall is a concrete wall, an aerated concrete block wall, a solid brick wall, a hollow brick wall or a lightweight cement sand block wall.