Prefabricated board for floor

Abstract

The invention relates to a floor precast slab, which comprises a precast reinforced concrete board (1) and is characterized in that: a convex reinforcing rib (2) is arranged on a board surface of the precast reinforced concrete board (1) and is a reinforcing rib which is formed by compression of a reinforcing rib pressure head. The floor precast slab is suitable for various cast-in-situ concrete floors, roofs, walling, base slabs and structures of pipe bridge projects and is particularly suitable for hollow flat slabs.

Description

(1) Technical field [0001] The invention relates to a prefabricated panel for floor slabs. (2) Background technology [0002] At present, in the formwork technology used in China, bamboo, wood, steel formwork or prefabricated panels are generally used as formwork. Prefabricated panels are generally produced manually or manually and mechanically vibrated. The overall density of the formwork manufactured in this way is low and the strength is low. , is easy to be damaged during the construction process, and in the hollow hole-forming technology of cast-in-place concrete, components such as pre-embedded hollow shells, boxes or pipes are generally used to evacuate the cast-in-place concrete to form holes, while the existing hollow shells, boxes or pipes Components such as body are generally produced manually or semi-mechanized by external mold method or internal mold method. Although the components produced in this way can be used to form hollow holes in cast-in-place concrete f...

AI Technical Summary

Problems solved by technology

[0002] At present, in the formwork technology used in China, bamboo, wood, steel formwork or prefabricated panels are generally used as formwork. Prefabricated panels are generally produced manually or manually and mechanically vibrated. The overall density of the formwork manufactured in this way is low and the strength is low. , is easy to be damaged during the construction process, and in the hollow hole-forming technology of cast-in-place concrete, components such as pre-embedded hollow shells, boxes or pipes are generally used to evacuate the cast-in-place concrete to form holes, while the existing hollow shells, boxes or pipes Components such as body are generally produced manually or semi-mechanized by external mold method or internal mold method. Although the components produced in this way can be used to form hollow holes in cast-in-place concrete floor slabs, their walls have low density and low strength. , it is very easy to be damaged during construction and application, resulting in partial solidity and affecting the structure. At the same time, the surface of the product is too smooth, it is not easy to bond with cast-in-place concrete, and it is easy to form a joint interface, especially when it is applied to the floor. The use of vibrating equipment is easy to damage the wall and form a partial solid slab, which affects the overall performance of the floor. Therefore, it is urgent to develop a prefabricated slab for the floor.

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