Title: Contraction Joints for Residential Post-Tensioned Slabs

Author(s): Harvey Haynes and Kenneth B. Bondy

Publication: Concrete International

Volume: 42

Issue: 7

Appears on pages(s): 33-35

Keywords: crack, design, moment, edge

Date: 7/1/2020

Abstract:
Contraction joints are not commonly used in residential post-tensioned (PT) slabs-on-ground. However, they are permitted by the Post-Tensioning Institute as means to minimize random cracking and improve appearance of a slab. The article discusses importance of contraction joints in PT slabs, determination of a joint layout, and available installation methods.