How Helical Crack Stitching is Done?

Posted by County Supplies on August 24th, 2019

One can find a number of structural repairs that are necessary on an old masonry building. There are many cracks in the walls, and this is a common structural defect. This is often repaired using crack stitching techniques. In this article, you will learn about what structural repair technique is and how it strengthens the cracked walls of old masonry building.

So, crack stitching method is a technique used for masonry repair for repairing cracked walls. This technique ensures that the old buildings are reinforced. This process involves retrofitting a number of crack stitching bars. These bars are applied across the cracks that are in the walls so that it can reconnect them and also provides stability to the masonry.

How does the crack stitching technique work?

The stainless steel crack stitching bars are inserted into the cracks that are there in the wall. The stitching bars are basically high tensile helical rods which are 6mm by diameter. WHO60 grout is used to fix with the helical bars which bind them into the wall. These stitch across the crack as it binds the masonry on the other side of it. The tensile strength of the helical bars is powered by its manufacturing process. It is double of that of rebar and is seven times of that of helix plate. When high tensile helical bars are used for crack stitching, it combines great axial strength. It reinforces the cracked brickwork, stonework and also the block-work.

The below mentioned are the benefits of helical crack stitching technique over the conventional ways: 

•          It is cost effective.
•          It is easy and quick to install.
•          It also creates fewer disturbances.
•          It is also visually un-intrusive. 
•          It can be installed in all the weather conditions.
•          This technique is more reliable than crack injection methods.
•          This quickly produces high and great compressive strength to the masonry.
•          The helical bars grout combines well to create excellent tensile strength within the masonry.

Helical crack stitching technique is a rapid, reliable and fully concealed way which can be used to reinforce the cracked walls in the masonry buildings. These stitching bars are very easy to install and also cause fewer disturbances. These features make helical crack stitching technique a very popular choice for many. Crack stitching method offers quick, strong and permanent solution for repair of old masonry buildings.