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首页> 外文会议>Asphalt Rubber 2009 Conference(2009国际橡胶沥青大会） >Asphalt-Rubber 40 Years of Use in Arizona
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Asphalt-Rubber 40 Years of Use in Arizona

机译：亚利桑那州沥青橡胶40年的使用

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Since 1969 the state of Arizona in the United States has used a unique asphalt binder called asphalt-rubber which contains a large percentage of crumb rubber from ground waste tires as an asphalt binder.This unique paving asphalt material consisting of approximately 20 percent ground waste tires and 80 percent paving grade asphalt is used to primarily reduce all types of cracking, including reflective cracking, thermal cracking, fatigue cracking and it is used as a crack and joint sealant. In addition since 1994 asphalt-rubber binder has been defined by an ASTM standard specification. Asphalt-rubber can be applied as a chip seal coat or in a hot mix. The asphalt-rubber chip seals and hot mixes have been used on state, city and county highways in Arizona to increase the pavement service life in a cost effective manner This paper reports on the long term history and performance of asphaltrubber with regard to reducing all forms of cracking, providing a surface with virtually no rutting, good skid resistance, little maintenance, smooth ride and less noise. Approximately 50 percent of the pavements in Arizona have an asphalt-rubber surface. In general, objective pavement performance measurements taken over a 40 year period all indicate that asphaltrubber is a very good durable surface wearing course material that can be successfully applied in both cold and hot climates and used on both asphalt and concrete pavements. In addition approximately 50 million tires have been successfully recycled.
机译：自1969年以来，美国亚利桑那州一直在使用一种独特的沥青粘合剂，称为``沥青橡胶''，其中包含来自废旧轮胎的很大比例的碎屑橡胶作为沥青粘合剂。这种独特的铺路沥青材料由约20％的废轮胎组成80％的铺路用沥青主要用于减少所有类型的开裂，包括反射开裂，热开裂，疲劳开裂，并用作裂缝和接缝密封剂。另外，自1994年以来，沥青橡胶粘合剂已通过ASTM标准规范进行了定义。沥青橡胶可以用作碎屑密封涂层或热拌混合料。沥青橡胶碎屑密封剂和热拌料已在亚利桑那州的州，市和县高速公路上使用，以节省成本的方式延长了路面使用寿命。本文报道了沥青橡胶在减少各种形式方面的长期历史和性能。裂纹，提供几乎没有车辙的表面，良好的防滑性，很少的维护，平稳的行驶和更少的噪音。亚利桑那州约有50％的人行道具有沥青橡胶表面。通常，在40年的时间里进行的客观路面性能测量均表明，沥青橡胶是一种非常好的耐用表面磨损层材料，可以成功地在寒冷和炎热的气候中使用，并可以在沥青和混凝土路面上使用。此外，大约有5000万个轮胎已经成功回收。

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