The appearance of cracks often raises many questions. It can show up in cracked concrete structures at an early stage or over time and are sometimes unavoidable in RCC homes.
The appearance of various forms of cracked concrete in a building often occurs during and/or after construction. A building element creates cracks when the stress of the components exceeds their strength. Stress on building components is caused by externally applied forces/loads.
Crack Investigation
Cracked concrete paints the
architectural appearance of a building. To properly repair cracked concrete,
first determine what caused them. Often times, cracks in concrete can cause
rain or groundwater to seep in. Or they may be the first sign that a wall is
collapsing. Therefore, the cracks should not be examined.
A competent investigator
should record all cracks with photographs and sketches.
What
Information Helps Investigate Cracked Concrete?
The information or data used
to evaluate cracked concrete are as follows:
· Location
of cracks in building elements, i.e. column, beam, slab or masonry or plaster.
· Crack
shape (horizontal, vertical, diagonal)
· Length
(can be shallow at one end and deep at the other)
· Width
(uniform or narrow)
· Depth
(through paint, plaster, or entire wall; severe cracking through cracks)
· Age
(clean crack indicates new, paint or dirty means old)
· Active
(moving) or inactive
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