Meaning Control or Contraction Joints
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Control or Contraction Joints


Joints in concrete which are grooved, formed or sawed into slabs so cracking will occur in these joints rather than in a random manner. They extend to 1/4 the depth of the concrete thickness. When the concrete is completely cured and dry, they may be filled with a Portland-based underlayment before the application of resilient flooring.
Source: armstrong.com (offline)




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