Short-term Laboratory Conditioning of Asphalt Mixtures

Short-term Laboratory Conditioning of Asphalt Mixtures
Author: David Newcomb
Publisher:
Total Pages: 196
Release: 2015
Genre: Asphalt
ISBN:

This report develops procedures and associated criteria for laboratory conditioning of asphalt mixtures to simulate short-term aging. The report presents proposed changes to the American Association of State Highway and Transportation Officials (AASHTO) R 30, Mixture Conditioning of Hot-Mix Asphalt (HMA), and a proposed AASHTO practice for conducting plant aging studies. The report will be of immediate interest to materials engineers in state highway agencies and the construction industry with responsibility for design and production of hot and warm mix asphalt.

Short-term Laboratory Conditioning of Asphalt Mixtures

Short-term Laboratory Conditioning of Asphalt Mixtures
Author: David Newcomb
Publisher:
Total Pages: 196
Release: 2015
Genre: Asphalt
ISBN:

This report develops procedures and associated criteria for laboratory conditioning of asphalt mixtures to simulate short-term aging. The report presents proposed changes to the American Association of State Highway and Transportation Officials (AASHTO) R 30, Mixture Conditioning of Hot-Mix Asphalt (HMA), and a proposed AASHTO practice for conducting plant aging studies. The report will be of immediate interest to materials engineers in state highway agencies and the construction industry with responsibility for design and production of hot and warm mix asphalt.

Validation of Guidelines for Evaluating the Moisture Susceptibility of WMA Technologies

Validation of Guidelines for Evaluating the Moisture Susceptibility of WMA Technologies
Author: Amy Epps Martin
Publisher:
Total Pages: 48
Release: 2016
Genre: Pavements, Asphalt
ISBN: 9780309375061

TRB's National Cooperative Highway Research Program (NCHRP) Report 817: Validation of Guidelines for Evaluating the Moisture Susceptibility of WMA Technologies presents validated guidelines proposed for identifying potential moisture susceptibility in warm mix asphalt (WMA) during mix design. The report further corroborates the moisture susceptibility thresholds described in NCHRP Report 763: Evaluation of the Moisture Susceptibility of WMA Technologies.

Investigation of Short-term Laboratory Aging of Neat and Modified Asphalt Binders

Investigation of Short-term Laboratory Aging of Neat and Modified Asphalt Binders
Author: David A. Anderson
Publisher: Transportation Research Board
Total Pages: 78
Release: 2012
Genre: Technology & Engineering
ISBN: 0309213630

"TRB's National Cooperative Highway Research Program (NCHRP) Report 709: Investigation of Short-Term Laboratory Aging of Neat and Modified Asphalt Binders provides a proposed method of testing for short-term laboratory aging of neat and modified asphalt binders using the modified German rotating flask as an alternative to the rolling thin film oven test. The following appendixes A-E to NCHRP Report 709 are only available in electronic format."--

Special Mixture Design Considerations and Methods for Warm Mix Asphalt

Special Mixture Design Considerations and Methods for Warm Mix Asphalt
Author:
Publisher: Transportation Research Board
Total Pages: 53
Release: 2012
Genre: Science
ISBN: 0309213738

TRB's National Cooperative Highway Research Program (NCHRP) Report 714: Special Mixture Design Considerations and Methods for Warm-Mix Asphalt: A Supplement to NCHRP Report 673: A Manual for Design of Hot-Mix Asphalt with Commentary presents special mixture design considerations and methods used with warm-mix asphalt. NCHRP Report 714 is a supplement to NCHRP Report 673: A Manual for Design of Hot-Mix Asphalt. All references to chapters in NCHRP Report 714 refer to the corresponding chapters in NCHRP Report 673.

Mix Design Practices for Warm Mix Asphalt

Mix Design Practices for Warm Mix Asphalt
Author: Ramon Francis Bonaquist
Publisher: Transportation Research Board
Total Pages: 111
Release: 2011
Genre: Science
ISBN: 0309155592

TRB's National Cooperative Highway Research Program (NCHRP) Report 691: Mix Design Practices for Warm-Mix Asphalt explores a mix design method tailored to the unique material properties of warm mix asphalt technologies. Warm mix asphalt (WMA) refers to asphalt concrete mixtures that are produced at temperatures approximately 50°F (28°C) or more cooler than typically used in the production of hot mix asphalt (HMA). The goal of WMA is to produce mixtures with similar strength, durability, and performance characteristics as HMA using substantially reduced production temperatures. There are important environmental and health benefits associated with reduced production temperatures including lower greenhouse gas emissions, lower fuel consumption, and reduced exposure of workers to asphalt fumes. Lower production temperatures can also potentially improve pavement performance by reducing binder aging, providing added time for mixture compaction, and allowing improved compaction during cold weather paving. Appendices to NCHRP Report 691 include the following. Appendices A, B, and D are included in the printed and PDF version of the report. Appendices C and E are available only online.