{"article":{"id":"post-tensioned-concrete-vs-asphalt","categoryId":"court-infrastructure","categoryName":"Court Engineering & Infrastructure","index":2,"question":"Why is post-tensioned concrete superior to asphalt for permanent outdoor courts?","answer":"Post-tensioned concrete uses steel compression cables to resist cracking, frost heaves, and settlement, lasting 25+ years compared to asphalt's 5-8 year crack cycle.","answerDetail":"In northern and temperate climates, asphalt courts suffer severe longitudinal freeze-thaw cracking and edge settling within 4 to 7 years. Post-tensioned concrete (PTC) is engineered with high-strength plastic-sheathed steel cables placed in a grid inside a 4- to 5-inch concrete slab. Once the concrete cures, hydraulic jacks tension the cables to 33,000 pounds of force, placing the entire slab into permanent compression. This compressive strength neutralizes tensile stresses caused by temperature swings, soil shifting, and tree roots. While PTC carries a 20-30% higher upfront capital expense, it prevents reflective structural cracking, ensuring seamless acrylic surfacing for 25 to 30 years.","intentTags":["concrete","asphalt","post-tensioned","court-engineering"],"searchKeywords":["post tensioned concrete pickleball","asphalt vs concrete court","court cracking repair","freeze thaw slab"],"facilityTags":["post-tensioned-concrete"],"serviceTags":["civil-engineering","contractors"],"environmentTags":["outdoor"],"structured":{"lifespanPTC":"25-30 years","lifespanAsphalt":"5-8 years","compressionStress":"33,000 lbs"},"lastVerified":"2026-09-20","canonicalUrl":"https://dink-digest.com/knowledge/post-tensioned-concrete-vs-asphalt"},"discovery":{"canonicalUrl":"https://dink-digest.com/knowledge/post-tensioned-concrete-vs-asphalt","hubUrl":"https://dink-digest.com/knowledge","categoryArticlesUrl":"https://dink-digest.com/api/knowledge?category=court-infrastructure"}}