Civil Engineering Association

ACI PRC-224.5-22: Contraction Joints in Residential Slabs-On-Ground—TechNote

Are contraction joints necessary in residential slabs-on-ground, whether for plain, reinforced, or post-tensioned (PT) concrete; and, if so, are there special considerations to installing joints in residential slabs?

Keywords:

contraction joints; control joints; joint spacing; post-tensioned residential slabs; residential slabs.

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