Civil Engineering

New PDF release: Asphalt Mix Design and Construction: Past, Present, and

Posted On April 20, 2018 at 3:39 pm by / Comments Off on New PDF release: Asphalt Mix Design and Construction: Past, Present, and

By Wayne Lee, Kamyar Mahboub

ISBN-10: 0784408424

ISBN-13: 9780784408421

Asphalt combine layout and building: previous, current, and destiny is a different book targeting the heritage, improvement, tendencies, and evolution of sizzling combine asphalt (HMA) layout and pavement building. This committee document includes 4 papers that have been provided at a different technical consultation, ''Evaluation of Bituminous fabrics Mix-Design & Superpave,'' of the convention to rejoice the a hundred and fiftieth Anniversary of ASCE in Washington, D.C. on November three, 2002. those papers speak about bituminous fabrics in mix-design, the way forward for asphalt pavements, changed asphalt binders, and quality controls and insurance. This file deals a old standpoint into the sector of asphalt layout and building. it is going to gain consulting engineers, contractors, govt officers and engineers at quite a few degrees, and collage scholars, educators, and researchers

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Extra info for Asphalt Mix Design and Construction: Past, Present, and Future State of the Practice: A Special Publication OS the 150th Anniversary of Asce

Example text

32 ASPHALT MIX DESIGN AND CONSTRUCTION compactor or selected based on experience. The design number of gyrations, Ndesign, is established as a function of traffic (design ESALs) and climate (air temperature). Heavily trafficked pavements require a relatively high Ndesigm while lowvolume pavements require low Ndesign. Because the asphalt content used during this step is merely a trial value, 4 percent air voids is rarely achieved at Ndesign. Accordingly, the compacted properties of each trial blend are evaluated to estimate an asphalt content that would produce 4 percent air voids.

Test specimens: a. Fabricated from Marshall IMF mix by kneading compaction at each of two levels of compaction as follows: Level 1 150 tamps at 230°F (110°C) Level 2 150 tamps at 230°F (110°C) followed by 1000 tamps at 140°F (60°C) b. Tested in the Hveem Stabilometer in accordance with Hveem Method of Design in Manual Series MS-2* shall be required to meet the following criteria: Compaction Level "S" value, minimum Level 1 40 Level 2 35 SUPERPAVE* and RELATED METHODOLOGY The Superpave mix design procedure is one of the products of the Strategic Highway Research Program (SHRP) (Kennedy et al.

The new test methodology includes development of a simple performance test or tests; developments in the area of performance prediction and the associated tests are discussed by Witczak and Bonaquist. References (Asphalt Institute 1997, Asphalt Institute 1994) are excellent sources of information on both the binder and mix requirements and tests associated with Superpave. Superpave Volumetric Mix Design The volumetric mix design procedure includes three steps: (a) selection of component materials; (b) selection of design aggregate structure; and (c) selection of the design asphalt content.

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Asphalt Mix Design and Construction: Past, Present, and Future State of the Practice: A Special Publication OS the 150th Anniversary of Asce by Wayne Lee, Kamyar Mahboub


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