Hairline Cracks In Concrete Block Walls

Stair step cracks may also signify heaving.

Hairline cracks in concrete block walls.

People often ignore hairline cracks thinking it s not a major issue. Cracks regularly occur in all types of masonry walls including reinforced concrete slab walls concrete block walls brick walls and stucco walls. Fill it with a caulk suitable for use on concrete. Cracking is frequently found in masonry walls due to the settling wall foundations the movement of framing materials temperature changes and the application of loads to the wall.

Hairline cracks are commonly observed in freshly placed concrete and their occurrence is owed to the phenomenon of plastic shrinkage. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair. Hairline cracking within concrete block walls often referred to as stair step cracking or mortar joint cracking is an example of an imperfection or distress but does not typically compromise structural integrity. If a crack between the wall and floor exceeds.

Minor cracks in cinder block foundations the cracks in the images above are very ordinary and nothing to worry about except for the fact that the foundation is leaking. Concrete wall crack repair in 8 steps use an epoxy injection system for basement wall crack repair. But these hairline cracks eventually turn into deeper and wider cracks. If a vertical crack widens at the top or bottom the wall is either settling or gradually heaving which may present serious issues.

Horizontal cracks in concrete walls however indicate poor wall designs or pressure buildup behind the wall. We repaired a foundation wall which had an 8 ft long crack that leaked water into the basement during periods of heavy rainfall. As the name implies these cracks are very small about 0 003 inches 0 08mm in width and can be very shallow. Repairing a foundation crack of this nature is similar to repairing other non structural cracks.

Hairline foundation cracks are by far the most common cracks encountered when inspecting foundation walls. Concrete walls containing horizontal cracks are serious issues. Plus a hairline crack is enough for moisture to seep into the concrete surface and hurt.