Abstract
Post-tensioned (PT) concrete is an increasingly popular technology since it allows for rapid construction using less material than conventional concrete. While its use has been widespread in the United States since the late 1950s, it has recently seen wider popularity in Europe, China, and the Middle East. PT concrete uses high strength cold-drawn prestressing steel tendons. The tendon configurations for PT concrete are bonded and unbonded. In both configurations, prestressing steel is used to pre-compresses the concrete slab before loading and results in longer spans without deformation. In comparison to conventional reinforced concrete slabs, PT concrete provides excellent control of in-service deflections (Khan and Williams 1995).
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