1, the allowable deviation of slab culvert construction should comply with the regulations.
2. The pipe body should be straight, the inlet and outlet, the hole body and the groove should be connected smoothly, and there should be no water blocking phenomenon.
3. Hat stones, straight walls or splayed walls match the slope and alignment of the route and are angular.
4. The road surface at the culvert is smooth, without tripping.
5, exposed concrete surface level off, the color is consistent.
6, culvert line straight, smooth surface.
7. The concrete surface of the cover plate shall be smooth, and the ridge line shall be straight, without serious edge gnawing and corner dropping.
8. The area of honeycomb pits shall not exceed 0.5% of the surface area. Those with a depth of more than l0mm must be treated and repaired before use.
9, build by laying bricks or stones seam symmetry, tick off seam smooth, no cracking and fall off phenomenon. Non-stressed cracks appear on the concrete surface of the cover plate. When the crack width exceeds the design requirements or is not specified in the design, it must be treated if it exceeds 0.15 mm. ..
10, the joint seal of the cover plate shall be flat and dense.
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