Development of specification for the superpave simple performance tests (SPT).
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2009-05-16
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Abstract:This report describes the development and establishment of a proposed Simple Performance ; Test (SPT) specification in order to contribute to the asphalt materials technology in the state of ; Michigan. The properties and characteristic of materials, performance testing of specimens, and field ; analyses are used in developing draft SPT specifications. These advanced and more effective ; specifications should significantly improve the qualities of designed and constructed hot mix asphalt ; (HMA) leading to improvement in pavement life in Michigan. The objectives of this study include the ; following: 1) using the SPT, conduct a laboratory study to measure the parameters including the dynamic ; modulus terms (E*/sinϕ and E*) and the flow number (Fn) for typical Michigan HMA mixtures, 2) ; correlate the results of the laboratory study to field performance as they relate to flexible pavement ; performance (rutting, fatigue, and low temperature cracking), and 3) make recommendations for the SPT ; criteria at specific traffic levels (e.g. E3, E10, E30), including recommendations for a draft test ; specification for use in Michigan. The specification criteria of dynamic modulus were developed based ; upon field rutting performance and contractor warranty criteria.
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Main Document Checksum:urn:sha256:7482d66f6782772a7ab448c15657f8506049063270ae29812d6b2d9a0301be7f