Lightweight solid inner core

Abstract

The invention provides a lightweight solid inner core. The lightweight solid inner core comprises an inner lightweight die (1), an upper cushion block (2) and a lower cushion block (3); a polyphenyl foamed square block is arranged in the lightweight inner die, and the surface of the lightweight inner core is wrapped with a hard surface layer which is formed by rendering a gridding cloth and cement mortar; chamfers are formed in four edges of the bottom surface of the lightweight inner die (1); the upper cushion block (2) is a strip-shaped hard block, and while the lower cushion block (3) is a cylindrical hard block; an annular slot (4) is formed in the upper part of the cylindrical hard block, and while the lower part of the cylindrical hard block has a taper; the upper cushion block (2) and the lower cushion block (3) are embedded into corresponding grooves in the surface of the lightweight inner die (1) and can move up and down in the grooves. The lightweight solid inner core is high in strength and high in generality; the moving cushion blocks are added, so that the trouble in construction is reduced, and the construction is greatly sped up.

Description

technical field [0001] The invention relates to floor coverings in the technical field of construction, in particular to a lightweight solid inner mold with movable pads. Background technique [0002] At present, in the field of construction and water conservancy projects, large-span, large-volume concrete structures and components are widely used. In order to reduce the weight of the structure and enhance the thermal insulation, heat insulation, sound insulation, and earthquake resistance of concrete, it is necessary to bury some concrete when pouring concrete. Lightweight material fills the blocks. In the construction industry, there are mainly the following ways to form the floor: on-site pouring; assembled floor, that is, the floor is built with a prefabricated hollow floor; the forming method of combining prefabricated components and cast-in-place components, these methods are different To a certain extent, the floor is large in size, heavy in weight, prone to cracks a...

AI Technical Summary

Problems solved by technology

In the construction industry, there are mainly the following ways to form the floor: on-site pouring; assembled floor, that is, the floor is built with a prefabricated hollow floor; the forming method of combining prefabricated components and cast-in-place components, these methods are different To a certain extent, the floor is large in size, heavy in weight, prone to cracks at the joints between the floors, and poor in versatility. At present, many new types of floors have emerged to meet the existing needs, among which the most successful The most important thing is to pour concrete around the lightweight filling block (the periphery includes a light and thin reinforcing layer, also known as the lightweight inner mold). In order to prevent the floating of the lightweight inner mold and the strength of the floor during the pouring process, it is necessary The vertical and horizontal intersecting steel bars are set around, and the relative position between the lightweight inner formwork and the steel bars is fixed before pouring construction. According to the engineering floor specification, the steel bars must be completely wrapped in concrete, so the steel bars cannot be directly placed when setting. In contact with the lightweight inner mold, before pouring concrete, construction workers need to prepare many pads (commonly used cement pads) to place between the inner mold and the steel bars, and then use the purchased No. 20 galvanized iron wire (wire) to place the The pads and steel bars are fixed together. These pads are irregular and limited in number, so it is very troublesome to fix, which often affects the progress of the project.

[0003] On the other hand, at present, some lightweight inner molds are not strong enough and are easily damaged during construction. The cost of some inner molds is too high, which also increases the project cost.

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