Water Sensitivity Of Asphalt Aggregate Mixes

Author : Ronald L. Terrel
Publisher : National Research Council
ISBN 13 :
Total Pages : 204 pages
Book Rating : 4.12/5 ( download)

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Download or read book Water Sensitivity of Asphalt-aggregate Mixes written by Ronald L. Terrel and published by National Research Council. This book was released on 1994 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research presented in this report was conducted to identify the important factors influencing the water sensitivity of asphalt paving mixtures, and to develop a test method to evaluate water sensitivity of asphalt concrete mixtures for mix design. The test method was to be performance related. A review of current procedures revealed that no single method was suitable for evaluation and related to field performance. Based on a hypothesis that air voids in the mixture may be the major source and cause of water damage, a test system was developed to evaluate the major factors that influence water sensitivity. The Environmental Conditioning System (ECS) was used to develop a test procedure that includes specimen preparation; measurement of permeability using air, water, or both; vacuum wetting; cycling at various temperatures; and continuous repeated loading while monitoring resilient modulus after each conditioning cycle.

Author : Todd V. Scholz
Publisher : Strategic Highway Research Program (Shrp)
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.09/5 ( download)

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Download or read book Water Sensitivity written by Todd V. Scholz and published by Strategic Highway Research Program (Shrp). This book was released on 1994 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Strategic Highway Research Program study was undertaken to evaluate the hypotheses concerning the influence of binder properties on the moisture susceptibility of asphalt-aggregate mixes. Thirty-two mixes using eight asphalts and four aggregates from the Materials Reference Library were used to fabricate roller-compacted slabs from which specimens were sawed or cored. The mixes were tested by four procedures. Because the water-conditioning and testing procedures were different, it was not appropriate to make direct comparisons of results or to use the results for ranking materials. It was concluded that, for water-sensitivity, asphalts or aggregates could not be ranked alone but that combinations or pairs were more appropriate because of strong interactions.

Author : Brian D. Prowell
Publisher : Transportation Research Board
ISBN 13 : 0309088259
Total Pages : 101 pages
Book Rating : 4.51/5 ( download)

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Download or read book Aggregate Properties and the Performance of Superpave-designed Hot Mix Asphalt written by Brian D. Prowell and published by Transportation Research Board. This book was released on 2005 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.59/5 ( download)

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Download or read book Hot-mix Asphalt Mixtures written by and published by . This book was released on 1999 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : University of California, Berkeley
Publisher : National Research Council
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.69/5 ( download)

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Download or read book Accelerated Performance-related Tests for Asphalt-aggregate Mixes and Their Use in Mix Design and Analysis Systems written by University of California, Berkeley and published by National Research Council. This book was released on 1994 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a brief summary of the processes that led to the selection of performance-related tests to define asphalt-aggregate interactions that result in fatigue, permanent deformation, thermal cracking, aging, and water sensitivity. Inherent in this test selection process was the emphasis on the ability of the tests to measure fundamental material properties that, when incorporated into prediction models, will depend less on empirical correlations than has been traditionally the case. Also included are the results of validation studies for each of the tests and frameworks for the use of the tests in mix design and analysis. Several levels of design are provided for each distress, some of which incorporate reliability concepts.

Author :
Publisher : Strategic Highway Research Program (Shrp)
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.50/5 ( download)

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Download or read book Stage 1 Validation of the Relationship Between Asphalt Properties and Asphalt-aggregate Mix Performance written by and published by Strategic Highway Research Program (Shrp). This book was released on 1994 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: A primary objective for the Strategic Highway Research Program (SHRP) A-003A contract was to extend and verify the results obtained by other SHRP contractors on the performance-related characteristics of asphalt binders in paving mixes. This report specifically addresses validation of the following: 1) binder properties proposed by the A-002A contractor to predict asphalt-aggregate mix performance in terms of fatigue, permanent deformation, and thermal cracking; and 2) conditioning procedures that produce binder properties representative of those in a pavement immediately after construction and after several years of service. While water sensitivity requirements are not included in the binder specification, validation efforts in the water-sensitivity area are also described. Materials used in the investigation included 8 to 16 asphalt binders and 2 to 4 aggregates obtained from the SHRP Materials Reference Library.

Author : William Gartner
Publisher : ASTM International
ISBN 13 : 0803112688
Total Pages : 141 pages
Book Rating : 4.81/5 ( download)

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Download or read book Asphalt Concrete Mix Design written by William Gartner and published by ASTM International. This book was released on 1989 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Carl L. Monismith
Publisher : DIANE Publishing
ISBN 13 : 0788171488
Total Pages : 81 pages
Book Rating : 4.82/5 ( download)

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Download or read book Asphalt Concrete written by Carl L. Monismith and published by DIANE Publishing. This book was released on 1998-07 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes research results concerned with the behavior of asphalt-aggregate mixes for pavements. An objective of this project was the development of a series of accelerated performance tests for asphalt-aggregate mixes together with methods for analyzing asphalt-aggregate interactions which significantly affect performance. Methodologies to define the fatigue, permanent deformation, thermal cracking, water sensitivity, and aging characteristics are described and use of these procedures in mix design/analysis stems which permit performance predictions under a variety of environmental and traffic loading conditions is illustrated.

Author : Dallas N. Little
Publisher : Springer
ISBN 13 : 331958443X
Total Pages : 693 pages
Book Rating : 4.30/5 ( download)

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Download or read book Modeling and Design of Flexible Pavements and Materials written by Dallas N. Little and published by Springer. This book was released on 2017-09-25 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook lays out the state of the art for modeling of asphalt concrete as the major structural component of flexible pavements. The text adopts a pedagogy in which a scientific approach, based on materials science and continuum mechanics, predicts the performance of any configuration of flexible roadways subjected to cyclic loadings. The authors incorporate state-of the-art computational mechanics to predict the evolution of material properties, stresses and strains, and roadway deterioration. Designed specifically for both students and practitioners, the book presents fundamentally complex concepts in a clear and concise way that aids the roadway design community to assimilate the tools for designing sustainable roadways using both traditional and innovative technologies.

Author : Sunghwan Kim
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.82/5 ( download)

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Download or read book Evaluation of Hot Mix Asphalt Moisture Sensitivity Using the Nottingham Asphalt Test Equipment written by Sunghwan Kim and published by . This book was released on 2005 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Even though moisture sensitivity of Hot Mix Asphalt (HMA) mixtures has been recognized as a major form of distress in asphalt concrete pavements since the advent of asphalt paving technology, the mechanism of this problem has not been clearly identified until now. However, it has been agreed that it can be characterized by the loss of adhesive bond between the asphalt binder and the aggregate or by a softening of the cohesive bonds within the asphalt binder, both of which are due to the action of loading under traffic in the presence of moisture. The evaluation of Hot Mix Asphalt moisture sensitivity has been divided into two categories: visual inspection test and mechanical test. However, most of them have been developed in pre-Superpave mix design. This research was conducted to develop a new test protocol which can overcome the problems of the current procedures and to evaluate the possibility of using the Nottingham Asphalt Tester (NAT) in the resulting procedure.