a sandwich block

Abstract

The invention relates to a building material, and particularly relates to a sandwich building block which comprises a framework, a core body and decorative layers, wherein the framework comprises a rectangular frame and at least two vertically-connected rib plates arranged in the rectangular frame; rectangular grids defined by the framework and the rib plates are filled with the core body; the two decorative layers are respectively arranged on one sides of two largest side surfaces parallel to each other of the rectangular frame; the upper ends and the lower ends of the two decorative layers are respectively lower than the upper end and the lower end of the framework, so that a boss and a groove are respectively formed in the upper end and the lower end of the building block. The sandwich building block has the advantages that the wall stability is high, the possibilities of cracking and microcrack generating are low, the overall wall weight is relatively light, the thermal insulation properties are superior, moisture penetration can be prevented effectively, the wall durability is improved, the appearance is attractive, and the building cost can be lowered greatly.

Description

technical field [0001] The invention relates to a building material, in particular to a sandwich block. Background technique [0002] At present, the blocks that constitute the walls of buildings are basically hollow concrete blocks. Although the blocks of this hollow structure reduce the weight of the wall to a certain extent, there are the following problems: one is that it has a strong The heat-insulating performance of the wall is poor due to thermal bridge effect, and the hollow part of the wall formed by the stacked hollow blocks forms an air convection channel inside the wall, thereby further reducing the thermal insulation performance of the wall; Yes, the impact resistance and bearing strength are relatively weak, and micro-cracks or even cracks are easy to occur; the third is that the joint surface of the block and the block is small, so that the structural stability of the wall is relatively reduced. Generally, by increasing the size of the block to make up for i...

AI Technical Summary

Problems solved by technology

[0002] At present, the blocks that constitute the walls of buildings are basically hollow concrete blocks. Although the blocks of this hollow structure reduce the weight of the wall to a certain extent, there are the following problems: one is that it has a strong The heat-insulating performance of the wall is poor due to thermal bridge effect, and the hollow part of the wall formed by the stacked hollow blocks forms an air convection channel inside the wall, thereby further reducing the thermal insulation performance of the wall; Yes, the impact resistance and bearing strength are relatively weak, and micro-cracks or even cracks are easy to occur; the third is that the joint surface of the block and the block is small, so that the structural stability of the wall is relatively reduced. Generally, by increasing the size of the block to make up for it, thereby increasing the floor area of ​​the wall; the fourth is that part of the mortar connecting the blocks tends to fall into the hollow hole, resulting in a waste of mortar; the fifth is that the texture is rough and the size is not accurate enough , the surface of the wall made of bricks is rough, uneven, and not beautiful, and it needs to be decorated, which is labor-intensive and time-consuming, which increases the cost; the sixth is that the waterproof performance is not good, and the moisture content of the wall will change with the change of the ambient humidity, thus Detrimental effect on the frost resistance and durability of the wall

In addition, it is the same as the bricks used before, and the positioning accuracy is greatly affected by the operator's technical level when stacking, so the requirements for the operator are high, the deviation of its positioning accuracy is large, and the quality stability is poor.

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