There no smooth contact between the wall and the slab.
Concrete block wall cracking along mortar.
If the masonry is built with concrete blocks the concrete blocks should be of dense and light weight concrete.
These cracks occur when masonry panels are restrained from moving.
Using bricklayer trowel this is how to usually install mortar onto a block to build wall up.
Windows and doors in a wall are weak places in the wall.
Cracks in concrete block walls.
In case of bricks those should be well burnt.
The precaution that can be suggested is to provide a bearing plaster over the brick wall which helps in having a smooth contact with the floor over it.
However if you notice your exterior walls cracking you may be dealing with.
As the concrete block is installed the mortar joints can shrink causing cracking along the mortar joints.
The cracks generally occur due to drying shrinkage of masonry units.
Along the mortar joints or less often right through the masonry blocks themselves can be the result of pressure from water and wet soils frost nearby vehicles or differential settlement in a footing.
There are often stucco cracks below the windows.
Interior cracks in concrete block walls can form for a number of reasons including.
This creates cracking in the walls.
Hence the frictional forces are developed at the contact place of the wall and the slab.
Your home is reinforced with steel reinforced columns every so many feet 4 feet to 8 feet is common.
We give details of shrinkage caused by moisture changes temperature changes and carbonation.
The near vertical cracking could be caused by settlement heaving or soil subsidence due to tree roots but most often a vertical crack is due to thermal expansion and contraction of a long wall.
If the integrity of a concrete block foundation wall has not been overly compromised by cracking within the mortar joints the service life can usually be extended by stabilizing them.
The walls on the outside of your home can crack for many of the same reasons.
The most economical and effective way to stabilize a block foundation wall is done with vertical braces in the form of vertical steel beams placed against the wall.
Even without external forces such as settlement causing step cracking or diagonal cracks along mortar joints in a concrete block wall expansion as well as shrinkage can be caused by moisture chemical and temperature changes in the material.
Partition walls built of concrete blocks or sand lime bricks.
Cracking resulting from shrinkage can occur in concrete masonry walls because of drying shrinkage temperature fluctuations and carbonation.