A142 Reinforcement Mesh-Concrete Reinforcement Supplier

The A142 Reinforcement Mesh is commonly used in lightweight household concrete with 100mm thick slabs and foundations. The most common USES of the A142 grid are passageways, driveways, and garage bottoms (depending on vehicle size and traffic level).

Application of A142 welded steel mesh in bridge engineering

It is mainly used for deck paving of municipal Bridges and highway Bridges, reconstruction of the old bridge deck, and crack prevention of bridge piers. Through the domestic thousands of bridge application engineering quality acceptance shows that the use of welding network significantly improve the quality of bridge deck paving layer, protection layer thickness qualified rate of more than 97%, bridge deck flatness, almost no cracks in the bridge deck, paving speed increased by more than 50%, reduce the bridge deck paving engineering cost of about 10%. The welded steel mesh of the bridge deck pavement layer should be welded mesh or prefabricated cold rolled ribbed steel mesh. The diameter and spacing of welded steel mesh for bridge deck paving should be determined according to the bridge structure and load grade. The distance of welded steel mesh can be 100 ~ 200mm, and the diameter should be 6 ~ l00mm. Equal spacing should be used for longitudinal and transverse welding of steel mesh. The thickness of the protective layer between the welding mesh and the top surface should not be less than 20mm.

Application of A142 welded steel mesh in highway cement concrete pavement engineering

The minimum diameter and maximum spacing of welded steel mesh for reinforced concrete pavement shall conform to current industry standards. When a cold-rolled ribbed steel bar is used, steel bar diameter should not be less than 8mm, longitudinal bar spacing should not be more than 200mm, transverse bar spacing should not be more than 300mm. The longitudinal and horizontal reinforcement of the welding net should adopt the same diameter, the thickness of the protection layer of the steel bar should not be less than 50mm.

(1) if the expansion joint connected with the concrete pavement and the fixed structure cannot be equipped with a force transmission rod, a double-layer welded steel net can be arranged in the plate end part of the adjacent structure; Or gradually increase plate thickness by 20% in the range of length about 6 to 10 times plate thickness.

Then, the concrete pavement and the bridge, the bridgehead is provided with a slab, should be set between the slab and the concrete surface layer between the 6mm long reinforced concrete surface layer transition plate. When the bridge is inclined, the acute Angle part of the reinforced concrete slab should be reinforced with welded steel mesh.

When the distance between the top surface and the bottom surface of the concrete surface is less than 400mm or when the concrete surface is embedded in the base layer, the concrete surface layer shall be equipped with a double-layer welded steel net in the top width and on both sides of the structure.

When the distance between the top surface and the bottom surface of the concrete surface is less than 1200mm, a single layer of welded steel net shall be arranged in the concrete surface layer on both sides of the structure. The welded steel net shall be set at a thickness of 1/4 to 1/3 from the top surface of the concrete surface.

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