In the exterior decoration of the wall, the glass fiber alkali-resistant mesh is an indispensable one. It has very high strength and good adhesion. It is especially suitable for external wall insulation and roof waterproofing. Then in the laying process What are the issues that need attention?
Compared with ordinary alkali-free and medium-alkali glass fibers, alkali-resistant glass fiber has its remarkable characteristics: good alkali resistance, high tensile strength, and strong corrosion resistance in cement and other strong alkali media
It is an irreplaceable reinforcing material in glass fiber reinforced cement products (GRC).
Alkali-resistant glass fiber is the base material of glass fiber reinforced cement (GRC). With the deepening of wall renovation and economic development, GRC has been widely used in building interior and exterior wall panels, thermal insulation panels, air duct panels, garden pieces and art sculptures, civil engineering Engineering and many other uses. Some products and components that are difficult to achieve or incomparable with reinforced concrete can be made. It can be used for non-load-bearing, secondary load-bearing, semi-load-bearing building components, decorative parts, agricultural and animal husbandry facilities and other occasions.
Shihao glass fiber mesh cloth is made of medium-alkali and alkali-free glass fiber mesh cloth as the base material, and is post-treated with acrylic acid copolymer glue. It is strong, easily soluble in styrene, has excellent stiffness and good positioning, and is mainly used as a reinforcement material for cement, plastic, asphalt, roofing and walls. Mainly used for GRC pre-laying, painting or mechanized forming, especially suitable for on-site construction of external wall insulation projects
1).Immediately after applying the surface mortar, tighten the alkali-resistant glass fiber mesh cloth in the horizontal direction, and use a trowel to smooth the mesh cloth from the middle to the top and bottom and press it into the wet cement slurry; from top to bottom along the outer wall Lay mesh cloth in circles; when encountering openings of doors and windows, a piece of standard mesh should be subsidized along the 45-degree direction at the four corners of the opening to prevent cracking.
2).The left and right lap widths of grid cloth are 150mm, and the upper and lower lap widths are 100mm. A 400mm grid cloth needs to be added locally at the outer corner. The alkali-resistant fiberglass mesh at all closures must be compacted back through the outside corner.
3).When the first layer of glue is slightly dry and hard enough to touch, use a trowel to apply the second layer of plastering glue for about 3mm until the alkali-resistant glass fiber mesh cloth is completely covered. The first floor wall, concave balcony and terrace should be plastered with a layer of alkali-resistant glass fiber mesh cloth on top of the plastering mortar, which should be done before the mortar coagulates, and then plastered with a layer of 2mm thick surface layer plastering mortar.