详情

原文传递 Internally Cured Concrete for Pavement and Bridge Deck Applications. Summary.

题名：	Internally Cured Concrete for Pavement and Bridge Deck Applications. Summary.
作者：	Tia, M.; Subgranon, T.; Kim, K.; Rodriguez, A. M.; Algazlan, A.
关键词：	Internally cured concrete, Bridge deck, Pavement, Lightweight aggregate, Pavement slabs, Coefficient of thermal expansion (CTE), Shrinkage cracking, Modulus of elasticity, Restraint ring test, Heavy Vehicle Simulator, Critical stress analysis, Field testing
摘要：	University of Florida researchers studied a possible solution to HSHPC cracking: internally cured concrete (ICC), produced by adding highly absorptive lightweight fine aggregates (LWA). Researchers examined the performance and usability of ICC in bridge decks and pavements under Florida conditions, hoping that LWA would provide more moisture to sustain the hydration process and consume all cementitious materials, producing a dense, durable concrete.High-strength-high-performance concrete (HSHPC) is used for rapid repair of concrete bridge decks and pavement. However, HSHPC has very high early shrinkage, often leading to cracking, made worse by high ambient temperatures and a large surface area that facilitates evaporation and high heat of hydration typical of this concrete. Cracks degrade repairs and can cause decks or pavements to fail. University of Florida researchers studied a possible solution to HSHPC cracking: internally cured concrete (ICC), produced by adding highly absorptive lightweight fine aggregates (LWA). Researchers examined the performance and usability of ICC in bridge decks and pavements under Florida conditions, hoping that LWA would provide more moisture to sustain the hydration process and consume all cementitious materials, producing a dense, durable concrete.
总页数：	Tia, M.; Subgranon, T.; Kim, K.; Rodriguez, A. M.; Algazlan, A.
报告类型：	科技报告