Combined box body used for hollow floor filling and manufacturing method thereof

Abstract

The invention provides an inorganic combined box body which is used for hollow floor filling and has light weight and simple manufacturing and a manufacturing method thereof; wherein the surface of the box body is difficult to be cracked or penetrated. The combined box body of the invention comprises a light solid box body and a hard shell coated outside the light solid box body; wherein the hard shell is a hard inorganic composite layer which is formed by the way that a fabric containing at least one fiber mesh and cement paste or cement plaster are mixed with glue used in construction as well as materials of mountain flour, mineral powder, slag or coal ash. The invention has light total weight, deformation, broken bit falling and cracking are difficult when in construction, water absorption is low, besides, structure is simple, manufacturing method is simple, and manufacturing cost is low, thus being applicable to pore-forming filing of various hollow floor system.

Description

technical field [0001] The invention relates to a building component for concrete hollow floor slab pouring on site, in particular to a lightweight solid inorganic composite box for concrete filling. [0002] The present invention also relates to a method for manufacturing the above-mentioned composite box. Background technique [0003] In order to better reduce the structural weight of the concrete floor slab, control the deflection and deformation of the floor slab, save steel bars, and reduce the overall cost, in order to meet the requirements of low carbon, energy saving, and environmental protection, the floor slab design mostly adopts the technology of cast-in-place concrete hollow slab. [0004] Chinese patent ZL200610169107.4 provides a lightweight tire mold member for cast-in-place concrete. The tire mold member includes a polyhedral solid lightweight material member, and the outer surface of the polyhedral solid lightweight material member is covered with cement sl...

AI Technical Summary

Problems solved by technology

Since the composite box is added with cement (sand) slurry or gypsum for construction, or directly uses polymer cement (sand) slurry to form a hard inorganic composite layer, it forms a shell layer compared to the aforementioned cement fiber mesh mortar. The tire mold component has many advantages, including: the hard shell of the product is easy to form, and it is not easy to lose water, sand, and powder, which is beneficial to environmental protection; the crack resistance strength and rigidity are significantly improved, and it has good compressive bearing capacity Performance and deformation recovery performance; at the same time, the water retention performance of the hard shell is improved, which effectively solves the problem that the outer film layer of the existing products is brittle and low in strength, and it is easy to lose water, sand, powder, and crack during outdoor maintenance. The knot is not good, the production quality is not easy to guarantee and other shortcomings

However, the manufacturing cost of this composite box product is relatively high, which is not conducive to widespread application

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