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What is the percentage of resin used for FRP grids?

Source： Time：2019-05-20 17:28:11 views：

The overlap of FRP grille is longitudinal, the width of overlap is not less than 20 mm, and the width of transverse overlap is not less than 15 mm.

The overlap of FRP grille is longitudinal, the width of overlap is not less than 20 mm, and the width of transverse overlap is not less than 15 mm. The former should be placed above the latter according to the direction of asphalt paving. The steel nails should not be nailed on the FRP grille or hammered directly on the FRP grille. If cracking or loosening of the steel nails are found after fixing, the nails should be fixed from scratch. After the glass fiber grille is laid and fixed, the roller roller should be used to roll and stabilize properly so that the glass fiber reinforced plastic grille can adhere to the original road surface robustly.
What is the percentage of resin used for FRP grids?
There are two kinds of FRP grids in common use: self-adhesive and non-self-adhesive. Self-adhesive can be laid directly on the flat bottom. Stainless steel clasp and nail fixation are generally used without self-adhesive. Glass fibre grids without self-adhesive are used in ordinary sections. The required data for fixing are as follows:
When fixing steel nail or stainless steel clasp method is used to lay FRP grille, one end of fixing clasp and steel nail is fixed on the bottom structure which has been sprayed with sticky asphalt. Steel nail can be injected by hammering or shooting nail. Then the grille is tensioned longitudinally and fixed in segments, each of which is 2-5M in length. It can also be segmented according to the shrinkage interval, and the steel nail orientation is located in the open space of the joint. When the grille is required to be tightened, both the longitudinal and transverse glass fibers are tightened by the pen.
Fixed stainless steel clasp of 50 x 50 x 0.3 mm requires flat and non-warping angle, and chamfering around it is suitable.
Fiberglass reinforced plastics (FRP) fibers can enhance the grille's endurance in FRP grilles. If the strength of alkali-free fiberglass reinforced plastic filament is higher than that of steel wire, it is chemically stable and weatherproof. It hardly absorbs water and does not burn when exposed to fire. Its high strength can also be used as tire cord. FRP filament is laid in 8-9 layers, so the strength of the product is maintained. Some factories use fiberglass reinforced plastic (FRP) filament as alkali-free filament. The strength of high alkali filament is low, and its water resistance and alkali resistance are poor.
The raw materials used in FRP grille are resin, FRP fiber, filler calcium powder with 1:1:1 share. The resin used in FRP grille is unsaturated phenyl resin 196, colorless and bright. Low viscosity, low heat release, low shortening, high speed curing, high speed compatibility, bright gloss. The fiberglass reinforced plastics grids are smooth, glossy, strong and durable. It is assumed that the residual resin will be the opposite of the residual resin, which is dirty, high viscosity, high heat release, high shortening, relatively slow curing, poor compatibility. The FRP grids produced are multi-porous, easy to crack, and have poor strength and endurance.
The fiberglass reinforced plastics grille can be laid by special equipment modified from tractor or car, which is usually laid manually. Orange and blue symbols are marked on both ends of the carton of each roll of glass fiber grille. Before laying, glue should be selected to face down and determine the color of the symbols at one end so as to facilitate construction without mislaying the glue surface. When laying FRP grids, they should be flat, tight and aligned at both ends so that they can be leveled with a horizontal ruler to provide useful tension. After laying, they should be rolled by a clean steel wheel roller. It is FRP grille that is clean, bright and more colorful.


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