How To Use Expansion Bolts in Hollow Bricks

How to use expansion bolts in hollow bricks? We all know that hollow bricks are relatively fragile, and their own bearing capacity is not enough. It is impossible to fix expansion bolts on hollow bricks. The following editor provides you with a method for fixing expansion bolts on hollow bricks.

First punch holes in the position that needs to be fixed, and then fill the air with high-strength to repair the mortar. Some people may ask why not pure cement? Because pure cement slurry is not suitable, so it is too easy to crack when stamping, or it is not well bonded.

High-strength repair mortar is superior to cement in terms of adhesion and strength of old structures. In the case of pure grout, after setting, the pores will shrink and the bond will not be good. Therefore, in addition to the aggregated quartz sand, the general filling mortar also adds materials such as cellulose and binders to improve strength. Some expansion additive will be added to prevent shrinkage during curing.

After it dries, you can safely drill holes with an impact drill, put the expansion screws in and fix things.

This not only saves some troubles, but also allows us to place our TVs and other wall hangings.