Some Common Defects in Brick Masonry Works

Incorrect Mortar Mixing

The most common defect in brick masonry works is caused by improperly mixed mortar. If the mortar isn’t mixed properly, it will be too wet or too dry. The wet mortar will not bond to the bricks, and the bricks will eventually fall off. The dry mortar will not bind to the bricks, and the bricks will eventually crumble. One way to make sure your mortar is correctly mixed is to ensure that the right amounts of sand, cement, and water are used. If you don’t use the right amounts, the mortar may not be strong enough to hold the bricks together, and it may fall apart over time.

Thick Bed Joints

One common defect in brick masonry is bed joints that are too thick. This occurs when the mortar between the bricks is thicker than it should be, which can cause the bricks to crack and the mortar to crumble. This defect can be caused by several factors, including incorrect proportions of ingredients in the mortar mix, improper application of the mortar, or insufficient curing time.

Improperly Filled Bed Joints

The use of bed joints that are not filled properly can often lead to common defects in brick masonry. If the mortar is not properly packed into the joint, it can often lead to the mortar being pushed out from the joint, eventually leading to the brick becoming loose. This can often be a very costly problem to fix, as it may require the replacement of large sections of brick masonry.

One way to avoid improperly filled bed joints is to use a level when filling them with mortar. This will help to ensure that the joint is even and decrease the chances of it being improperly filled. Additionally, you can use a T-bar or other tool to create a smooth, even surface on which to lay the bricks, which will also help ensure an even bed joint.

Wet Bricks and Bad Weather

The weather can have a significant impact on brick masonry. If it is exposed to rain, snow, or ice while still wet, it can cause the bricks to become soft and pliable. This can lead to common defects such as surface erosion, spalling, and even complete failure of the masonry. To avoid these problems, it is important to allow newly laid bricks time to dry out before exposing them to bad weather.

Not Adjusting the Suction of the Bricks

The most common defect in brick masonry is a failure to adjust the suction of the bricks. This occurs when the mortar is not properly mixed or when the bricks are not properly wetted before being laid. If the mortar is too wet, it will not hold the bricks in place, and if it is too dry, it will not stick to the bricks. The mortar must be thoroughly mixed, and the bricks sufficiently wetted before they are laid. When bricks are laid, they should be laid with the long sides down to prevent future cracking.

Brick Shrinkage

Brick masonry is commonly susceptible to shrinkage, which can cause various defects, including cracking, spalling, and efflorescence. Shrinkage is typically caused by the drying out of the mortar and/or the bricks themselves. This can be exacerbated by factors such as low humidity, high winds, or exposure to the sun. Shrinkage can be prevented by using properly-graded mortar and ensuring that the bricks are properly wet before being laid.

Harsh Weather

Frost damage is a common defect that can occur in brick masonry works. When the temperature drops below freezing, water can freeze in the small pores and capillaries of the masonry. This expansion of the frozen water can cause the masonry to crack and crumble. Frost damage is most likely to occur during sudden temperature changes, such as when the weather goes from warm to cold or when ice forms on the surface of the masonry. This type of damage is often found on the exterior of buildings, where the weather is colder and the sun does not hit the masonry as often.

Bad Brick

Bricks that contain dirt, dust, or mold can cause common defects in brick masonry. When the bricks are wet, the dirt, dust, or mold can prevent the brick from bonding correctly with other bricks, which can lead to the brick coming loose. This can be a safety hazard and can also decrease the stability of the structure.

Most types of brickwork defects can be caused by poor workmanship. These defects can further cause the brickwork to deteriorate over time, leading to structural problems. If you want to avoid these problems in the future or are looking to hire bricklayers in Fredericton, look no further. Atlantic Brick and Stone is one of the best masonry companies in town. Call us at 506-304-0771 for a free estimate.