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首页> 外文期刊>American Journal of Traffic and Transportation Engineering >Partial Replacement of Spent Foundry Sand in Bituminous Mix Design
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Partial Replacement of Spent Foundry Sand in Bituminous Mix Design

机译：沥青混合设计中粉煤铸造砂的部分替代

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摘要

Bituminous mixes for flexible pavement construction are most commonly used all over the world. Mainly aggregate, sand, bitumen etc. are used for pavement construction. In this investigation an attempt is made to study the properties of bituminous pavement materials by the partial replacement of spent foundry sand as fine aggregate with an increment of 10%. Foundry sand is a high quality silica sand that is used to form molds for ferrous (iron and steel) and non-ferrous (copper, aluminum, brass etc.) metal castings. Metal casting industries use huge quantity of foundry sand every year and disposed them after being used. This industrial waste occupies large amount of space of the land. If this sand can be utilized in pavement construction, the disposal and pollution problem can be minimized. The main objective of this study is to determine sufficient bitumen content and mix stability to ensure a durable and cost effective pavement after being partial replacement of foundry sand. The proposed mix design will be conducted in accordance with Marshall Mix design. After performing the experimental investigation it is found that for 30% replacement of waste foundry sand provide superior field performance and better stability than the conventional mixes.
机译：用于柔性路面结构的沥青混合物最常见于全球。主要用于路面结构的骨料，沙子，沥青等。在本研究中，尝试通过将铸造砂沙的部分替代为细骨料的部分替代来研究沥青路面材料的性质，增量为10％。铸造砂是一种优质硅砂，用于形成黑色金属（钢铁）和有色金属（铜，铝，黄铜等）金属铸件的模具。金属铸造行业每年使用大量的铸造沙子，并在使用后将其配置。这种工业垃圾占据了大量的土地空间。如果该砂可以在路面结构中使用，则可以最小化处理和污染问题。本研究的主要目的是确定足够的沥青含量，并混合稳定性，以确保在铸造砂砂局部替代后确保耐用和成本效益的路面。拟议的混合设计将按照Marshall Mix Design进行。在进行实验研究之后，发现30％的废弃物砂砂提供优异的现场性能和比传统混合物更好的稳定性。

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