Development of an economical, thin, quiet, long-lasting, high friction surface layer, volume 1 : mix design and lab performance testing.
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2013-03-01
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Abstract:This project developed and evaluated four new asphalt concrete (AC) mixtures that use locally available ; aggregates whenever possible with the ultimate goal of a cost-effective mixture that also improves pavement ; performance. Although numerous tactics have previously been introduced to improve the performance of ; asphalt pavement, these improvements often add expenses because they use unnecessarily large amounts of ; high quality aggregates and highly modified binder. The Illinois Department of Transportation initiated a program ; to develop sustainable asphalt pavements that use locally available aggregates as much as possible to reduce ; the material cost while also improving performance. These new mixtures were developed using the Bailey ; method to provide a promising aggregate structure that makes it possible to ensure compactability at thinner ; layers. The newly developed mixes use locally available natural aggregates such as dolomite, and including ; smaller amounts of imported materials such as quartzite, steel slag, and fibers to improve their performance in ; terms of durability, rut resistance, moisture susceptibility, fracture, and complex modulus. To evaluate the ; performance of each new mixture, five laboratory tests were conducted at the Advanced Transportation and ; Research Engineering Laboratory (ATREL), and the results suggest a preferred mixture.
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Main Document Checksum:urn:sha-512:cc191560677974390cd00b14b424e20b525e8e2303339143af47289df30b7c45bff00335b6a8274fb6bed7aee801582f4138a0e89d45d617489e8880b1f6fbd4