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首页> 外文期刊>Journal of Infrastructure Systems >Solid Waste Generation in Asphalt and Reinforced Concrete Roadway Life Cycles
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Solid Waste Generation in Asphalt and Reinforced Concrete Roadway Life Cycles

机译：沥青和钢筋混凝土巷道生命周期中的固体废物产生

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Conserving natural resources for future generations is a common objective of sustainable design and construction. Making use of materials in an efficient manner to improve sustainability is especially applicable on roadway construction projects which can consume significant quantities of materials. An understanding of how best to eliminate material waste on roadway projects requires knowledge of the amount of material waste generated during the various phases of the roadway life cycle. This paper presents a research study undertaken to quantify the amount of materials wasted during the roadway life cycle. The study included life-cycle inventory assessments (LCI) of a continuously reinforced concrete (CRC) roadway and an asphalt concrete (AC) roadway with respect to the waste generated from extraction of raw materials through the end-of-life (EOL) of the roadways. For the CRC roadway, waste was primarily generated at the roadway EOL, accounting for approximately 53% of the total amount of waste generated over the roadway's entire life cycle. A similar trend was observed for the AC roadway in which 59% of the total waste occurred at EOL. For both CRC and AC roadways, waste created during placement of materials is almost negligible compared to that generated during the manufacturing phase and at EOL. The results suggest that application of sustainable concepts (reduce, recover, reuse, and recycle waste) and use of recycled instead of natural materials would help create sustainable roadways.
机译：为子孙后代保护自然资源是可持续设计和建造的共同目标。有效利用材料来改善可持续性尤其适用于可能消耗大量材料的道路建设项目。要了解如何最好地消除道路工程中的物料浪费，需要了解在巷道生命周期各个阶段产生的物料浪费量。本文提出了一项研究研究，以量化在巷道生命周期中浪费的材料数量。这项研究包括连续钢筋混凝土（CRC）巷道和沥青混凝土（AC）巷道的生命周期清单评估（LCI），涉及到从使用寿命的（EOL）原材料提取中产生的废物。巷道。对于CRC道路，废物主要是在道路EOL处产生的，约占道路整个生命周期中产生的废物总量的53％。对于AC巷道，也观察到了类似的趋势，其中59％的总废物发生在EOL。对于CRC和AC巷道，与制造阶段和EOL期间产生的废物相比，材料放置期间产生的废物几乎可以忽略不计。结果表明，应用可持续概念（减少，回收，再利用和回收废物）以及使用回收替代天然材料将有助于创建可持续道路。

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