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Why is important to place gaps at regular intervals in sidewalks?
Wiki User
∙ 12y ago
To prevent sidewalks from cracking in random spots and breaking apart, builders make lines in sidewalks. The technical term for sidewalk lines is contraction joints. Contraction joints are placed in fresh concrete before the concrete dries and has a chance to create its own joints, which we call cracks.
Aathini Parthiban
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