Evaluation of Recycled Asphaltic Concrete

Evaluation of Recycled Asphaltic Concrete
Author: Charles S. Hughes
Publisher:
Total Pages: 40
Release: 1977
Genre: Pavements, Asphalt
ISBN:
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This report describes a project in which approximately 6,200 tons (5,630 Mg) of asphaltic concrete were recycled through a conventional asphalt batch plant. During the construction of the project, a buildup of asphalt-coated fines occurred in the dryer and the dust collector. The buildup is thought to have been associated with the fineness and/or the high asphalt content of the recycled mix. To solve the problem, a change was made in the recycling process. The project was completed using a heat transfer method with mix proportions as high as 50% recycled material added to 50% virgin aggregate.

Evaluation of Cement and Fly Ash Treated Recycled Asphalt Pavement and Aggregates for Base Construction

Evaluation of Cement and Fly Ash Treated Recycled Asphalt Pavement and Aggregates for Base Construction
Author: Tyson David Rupnow
Publisher:
Total Pages: 2
Release: 2011
Genre: Cement
ISBN:
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INTRODUCTION: Many entities currently use recycled asphalt pavement (RAP) and other aggregates as base materials, temporary haul roads, and, in the case of RAP, hot mix asphalt construction. Several states currently allow the use of RAP combined with cement for a stabilized base course under both asphalt and concrete pavements. Currently, there is disagreement on what properties are required and how to test the cement and fly ash treated RAP for both asphalt and concrete pavement structures. This project investigated cement and fly ash treated RAP and other materials to determine their suitability for base course construction. OBJECTIVE: The objective of this research was to determine feasibility of cement and fly ash treated RAP and other aggregates as a structural layer for both portland cement concrete and hot mix asphalt pavement systems.

Transportation Research Record

Transportation Research Record
Author:
Publisher:
Total Pages: 658
Release: 1996
Genre: Air travel
ISBN:
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"For more than 50 years, the Transportation Research Record has been internationally recognized as one of the preeminent peer-reviewed journals for transportation research papers from authors in the United States and from around the world. One of the most cited transportation journals, the TRR offers unparalleled depth and breadth in the coverage of transportation topics from both academic and practitioner perspectives. All modes of passenger and freight transportation are addressed in papers covering a wide array of disciplines, including policy, planning, administration, economics and financing, operations, construction, design, maintenance, safety, and more."--Publisher's website

Recycled Asphalt Pavement as a Base and Sub-Base Material

Recycled Asphalt Pavement as a Base and Sub-Base Material
Author: N. Gucunski
Publisher:
Total Pages: 12
Release: 1997
Genre: California bearing ratio
ISBN:
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Laboratory and field investigations were conducted to evaluate the use of recycled asphalt pavement (RAP) in roadway base and sub-base applications. The laboratory resilient modulus test results showed RAP has comparable strength with dense graded aggregate base and sub-base material used in the State of New Jersey. Using the spectral-analysis-of-the-surface-waves method (SASW), the field testing program evaluated the elastic modulus of the RAP base in the field and verified the laboratory results. The field test results showed higher modulus and stiffness for RAP than the dense graded aggregate base normally used in state of New Jersey.

Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content

Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content
Author: Randy Clark West
Publisher: Transportation Research Board
Total Pages: 162
Release: 2013
Genre: Pavements, Asphalt
ISBN: 0309259134
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TRB's National Cooperative Highway Research Program (NCHRP) Report 752: Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content describes proposed revisions to the American Association of State Highway and Transportation Officials (AASHTO) R 35, Superpave Volumetric Design for Hot Mix Asphalt, and AASHTO M 323, Superpave Volumetric Mix Design, to accommodate the design of asphalt mixtures with high reclaimed asphalt pavement contents.

AASHTO Guide for Design of Pavement Structures, 1993

AASHTO Guide for Design of Pavement Structures, 1993
Author: American Association of State Highway and Transportation Officials
Publisher: AASHTO
Total Pages: 622
Release: 1993
Genre: Pavements
ISBN: 1560510552
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Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement structural design - Low-volume road design / - Pavement design procedures for rehabilitation of existing pavements : Rehabilitation concepts - Guides for field data collection - Rehabilitation methods other than overlay - Rehabilitation methods with overlays / - Mechanistic-empirical design procedures.