Lightweight concrete board

Abstract

A lightweight concrete slab, comprising cast-in-place reinforced concrete (22), prefabricated components (23) for filling, the prefabricated components (23) for filling are arranged alternately and wrapped in cast-in-situ reinforced concrete (22), and the prefabricated components (23) for filling are arranged The prefabricated components (23) are cast-in-place concrete ribs (24) between each other, and it is characterized in that at least two or more lightweight blocks (3) are arranged at intervals in the long groove of the elongated groove plate, and the light weight blocks ( 3) The interval between them constitutes the inner rib hollow groove (4) which is orthogonal or / and oblique to the long groove, and the inner rib side plate formwork connected with the inner rib hollow groove (4) of the two side plates (2) Cavity (5), the connecting bridge (6) of side plate (2) is arranged on mold cavity (5), the end of side plate (2) is provided with transverse plate (7), and there is The cast-in-place reinforced concrete (22) forms a cast-in-place concrete inner rib (25), and the cast-in-place concrete inner rib (25) passes through the mold cavity (5) of the inner rib side plate and is connected with the cast-in-place concrete rib (24). It is suitable for hollow floors, roofs, foundation slabs, etc. of cast-in-place reinforced concrete or prestressed reinforced concrete.

Description

(1) Technical field [0001] The invention relates to a lightweight concrete board. (2) Background technology [0002] Ribbed reinforced concrete prefabricated components are used to assemble lightweight slabs, which can bear two-way loads, do not need on-site formwork, and are low in cost, easy to hoist and transport. This ribbed prefabricated component includes a strip-shaped bottom plate and a long strip-shaped side plate, and the side plate and the bottom plate are connected as a whole to form a T-shaped or long-strip trough-shaped component. Usually the length of the side slab of this prefabricated component is the same as the length of the bottom slab. When this prefabricated component is assembled to form a lightweight slab that bears two-way loads, the cast-in-place concrete cannot pass through the side slab and cannot form a connected intersecting slab with the side slab. In-situ concrete ribs, at the same time, in the direction perpendicular to the side plate, vario...

AI Technical Summary

Problems solved by technology

Usually the length of the side plate of this prefabricated component is the same as the length of the bottom plate. When this prefabricated component is assembled to form a lightweight slab bearing two-way loads, the cast-in-place concrete cannot pass through the side plate, and cannot form a connected crossing with the side plate. Cast-in-place concrete ribs, at the same time, in the direction perpendicular to the side plate, various pipeline layouts need to be drilled and threaded on site, which not only wastes concrete materials, but also wastes man-hours. Moreover, after cast-in-place concrete, the assembled lightweight panels are solid. Concrete consumes a lot of materials, and the lightweight slab is heavy, which is not suitable for large-span pouring. Therefore, it is urgently needed to develop a new type of concrete lightweight slab.

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