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Precast Prestressed Concrete Pavement

机译：预制预应力混凝土路面

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摘要

With traffic volumes continuing to increase on a rapidly deteriorating infrastructure, new methods are needed for expediting construction of durable, high performance concrete pavements with minimal disruption to traffic. One method, which has received significant attention in recent years, involves the use of precast concrete panels. Precast concrete panels can be cast and cured in a controlled environment, stockpiled, and set in place in a short amount of time, allowing for construction to take place during overnight or weekend operations. In March 2000, the Center for Transportation Research at The University of Texas at Austin completed a feasibility study which investigated the use of precast prestressed concrete panels for pavement construction. Following the feasibility study, a pilot project was initiated by the Texas Department of Transportation to test and refine these concepts on an actual project. Recently, construction of this pilot project was completed on a section of frontage road along northbound Interstate 35 near Georgetown, Texas. Although it was constructed without the time constraints and complexities that will eventually need to be considered for precast pavement construction, the viability of the concept for precast prestressed concrete pavement was clearly demonstrated and will ultimately lead to development of future precast prestressed concrete pavements.
机译：随着基础设施的迅速恶化，交通量不断增加，需要新的方法来加速建造耐用，高性能的混凝土路面，而对交通的干扰最小。近年来受到广泛关注的一种方法涉及使用预制混凝土面板。预制混凝土板可以在受控的环境中浇铸和养护，堆放并在短时间内放置到位，从而可以在通宵或周末运营期间进行施工。 2000年3月，德克萨斯大学奥斯汀分校的交通研究中心完成了一项可行性研究，该研究调查了预制预应力混凝土板在路面施工中的使用。在可行性研究之后，德克萨斯州交通运输部启动了一个试点项目，以在实际项目中测试和完善这些概念。最近，该试验项目的建设已在德克萨斯州乔治敦附近35号州际公路北行的临街路段完成。尽管它的建造没有时间限制和复杂性，但最终仍需要考虑预制混凝土路面的施工，但已清楚地证明了预制预应力混凝土路面概念的可行性，并将最终导致未来预制预制预应力混凝土路面的发展。

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