Prefabricated foam concrete composite wallboard for building infilled wall

Abstract

The invention discloses a prefabricated foam concrete composite wallboard for building an infilled wall. Foam concrete is used as a core board, and the surface of the wallboard is compounded with a concrete surface layer, hidden beams are arranged in the wallboard, omega-shaped grooves are formed in the splicing positions of the wallboard, and the wallboard is provided with lifting rings and supporting holes. The prefabricated wallboard provided by the invention is a large prefabricated wallboard, and is suitable for mechanized construction; a piece of infilled wall in a building is formed byonly one prefabricated wallboard or a few prefabricated wallboard for assembly, and the installation efficiency of the composite wallboard is higher than that of a strip board, so that the demand of human resource on the construction site can be reduced, and the requirements of building industrialization are met. The cost and self-weight of the prefabricated composite wallboard provided by the invention are lower than those of a prefabricated concrete sandwich wallboard; when being used for building the infilled wall, the prefabricated foam concrete composite wallboard has good technical and economic indexes, and can accelerate the popularization and application of large prefabricated wallboards.

Description

technical field [0001] The invention relates to the technical field of water conservancy, in particular to a prefabricated foam concrete composite wallboard used for building filling walls. Background technique [0002] The development of building filling walls has experienced three generations of wall materials: the first generation is brick filling walls represented by clay bricks; the second generation is block filling walls represented by aerated concrete blocks; Panels are representative of prefabricated wall panels to fill walls. [0003] The construction of the first and second generation infill walls requires a lot of human resources. The efficiency of masonry is low, and the quality is difficult to guarantee. It does not conform to the development trend of building industrialization, and it is difficult to meet the requirements of green environmental protection. It is gradually being eliminated. [0004] The third-generation prefabricated wallboard filling wall has...

AI Technical Summary

Problems solved by technology

[0006] 1) The width of the prefabricated slats is relatively narrow, generally only 600mm. A piece of infill wall needs to be spliced ​​with multiple slats. Therefore, there are many joints on the slatted infill wall, and the joints between the slats are easy to crack. Affects the aesthetics and use of buildings

Prefabricated slats are rarely used for building exterior walls that have strict cracking requirements due to the defects of many joints and easy cracking

[0007] 2) The installation of prefabricated slats is still manually operated, the installation efficiency is low, and it is not suitable for the mechanized construction required by prefabricated buildings

[0008] 3) There is generally no steel bar in the prefabricated slab, and the slab itself is brittle and has poor ductility

When an earthquake occurs, the slats are easy to break and collapse suddenly, causing personal injury and property loss

[0009] 4) Prefabricated slats generally cannot embed pipelines in advance during production. It is necessary to grove and embed pipelines on the wallboard after the slats are installed. Most of the slats are hollow slabs, and slotting will destroy the structural safety of the slats. Generally, slotting is not allowed, so when the slats are used as the filling wall, it will make it difficult to slot the pre-embedded pipeline in the later stage

[0011] 1) The production of prefabricated concrete sandwich wall panels requires large-scale equipment. The product is heavy and costly. Compared with prefabricated slabs, it has no technical and economic advantages when used as building filling walls. Therefore, it is generally only used for thermal insulation and crack resistance. exterior walls of buildings

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