Under the influence of temperature and humidity, a masonry wall may experience change in its dimension.
Based on this
scenario, control joints and expansion joints are provided. These joints predetermined
the location for cracking to occur.
Control joints are
used to curb the movement in concrete masonry wall resulting from shrinkage due
to moisture loss and temperature change.
Expansion joint
control the expansion of clay masonry wall caused by the moisture absorption and
temperature.
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