Hollow brick

Abstract

The invention discloses a hollow brick. The external shape of the hollow brick is a cuboid, the cuboid comprises an upper surface, a lower surface, a front face, a back face, a left face and a right face; a plurality of upper blind holes are formed in the upper surface of the cuboid, a plurality of lower blind holes are formed in the lower surface of the cuboid, the axes of both the lower blind holes and the upper blind holes are coincident, and the depth of each upper blind hole is one-sixth of the height of the hollow brick; and grooves are formed in the front face and the back face of the cuboid, long grooves are formed in the left face and the right face of the cuboid in the height direction, the grooves formed in the front face and the back face of the cuboid are the x-shaped grooves,the cruciform grooves or the W-shaped grooves, and the sections of the upper blind holes and the lower blind holes are in circular, rectangular, regular pentagon, regular hexagonal or regular eight-sided shapes. The hollow brick can not only avoid waste of bonding mud, but also has the high connection strength with the bonding mud.

Description

technical field [0001] The invention relates to a brick used in construction industry, in particular to a hollow brick. Background technique [0002] An existing hollow brick has a rectangular parallelepiped shape, the lower surface of the rectangular parallelepiped is a plane, and a deeply sunken blind hole is arranged on the upper surface of the rectangular parallelepiped. During construction, the connection between the lower surface of the hollow brick on the upper layer and the upper surface of the hollow brick on the lower layer will not be very stable. The reason is that the bonding mud applied to the hollow brick on the upper layer will fall into the blind hole of the hollow brick on the lower layer, causing Waste of bonding mud. Simultaneously because the four outer surfaces of the hollow bricks are all smooth surfaces, the bonding strength between the bonding mud and the outer surfaces wiped on the outer surfaces of the hollow bricks during construction is weak and...

AI Technical Summary

Problems solved by technology

During construction, the connection between the lower surface of the hollow brick on the upper layer and the upper surface of the hollow brick on the lower layer will not be very stable. The reason is that the bonding mud applied to the hollow brick on the upper layer will fall into the blind hole of the hollow brick on the lower layer, causing Waste of bonding mud

At the same time, because the four outer surfaces of the hollow bricks are all smooth surfaces, the bonding mud applied on the outer surfaces of the hollow bricks during construction has weak connection strength with the outer surfaces and is easy to fall off.

Images