Download or read book Predicting Moisture induced Damage to Asphaltic Concrete Field Evaluation Stage written by Robert P. Lottman and published by . This book was released on 1979 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Moisture induced Damage to Asphaltic Concrete written by G. W. Maupin and published by . This book was released on 1977 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virginia is one of seven state and federal agencies participating in a field evaluation of a stripping test method developed under NCHRP Project 4-8 (3), "Predicting Moisture- Induced Damage to Asphaltic Concrete." The test method is being used to evaluate the efficacy of the method in predicting the degree of stripping that will occur on a 1,000 ft. (300 m) test section constructed with an asphaltic concrete believed to have a tendency to strip. The degree of stripping of the pavement will be evaluated by visual observation of cores taken periodically and by pavement surveys. In the test method resilient modulus and indirect tensile tests are being performed on preconditioned and non-preconditioned specimens in predicting the potential stripping. The strength or stiffness loss resulting from vacuum saturation preconditioning is being used to indicate potential immediate stripping, and the strength or stiffness loss under a more severe accelerated preconditioning indicates potential stripping after a long period of time. The tests have predicted that stripping will occur over a long period rather than a short period. Tests on cores taken 12 months after construction have shown a minor amount of stripping.

Download or read book Predicting Moisture Induced Damage to Asphaltic Concrete written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting moisture induced damage to asphaltic concrete written by and published by . This book was released on 1979 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Virginia Department of Highways and Transportation is one of seven state and federal agencies participating in a field evaluation of a stripping test method developed under NCHRP Project 4-8(3), "Predicting Moisture-lnduced Damage to Asphaltic Concrete". In the Virginia portion of this field phase of the project, an evaluation is being made of the effectiveness of the method in predicting the degree of stripping that will occur on a 950-ft. (290-m) test section constructed with an asphaltic concrete believed to have a tendency to strip. The test method was used on specimens prepared in the laboratory and on cores taken immediately after construction of the test section in an attempt to predict the stripping susceptibility of the mix. On the basis of the results of those tests it was predicted that stripping would occur over a long period. Tests on cores being taken periodically show decreasing strength values that probably are a result of progressive stripping, that was very evident in cores taken at 22 months.

Download or read book Predicting Moisture induced Damage to Asphaltic Concrete written by Robert P. Lottman and published by . This book was released on 1980 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting moisture induced damage to asphaltic concrete written by and published by . This book was released on 1982 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report National Cooperative Highway Research Program written by and published by . This book was released on 1964 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Moisture induced Damage to Asphaltic Concrete written by Jerry L. Graham and published by . This book was released on 1982 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Moisture induced Damage to Asphaltic Concrete written by Jerry L. Graham and published by . This book was released on 1964 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Moisture induced Damage to Asphaltic Concrete written by G. W. Maupin and published by . This book was released on 1981 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virginia was one of seven agencies that participated in the evaluation of a stripping test developed under National Cooperative Highway Research Program Project 4-8(3). The test was used to predict stripping of a field test section and the test results were compared to stripping that occurred in the test section over a 5-year period. The stripping test predicted that a significant amount of stripping would occur over a long time period. Strength tests and visual examination of field cores indicated a significant amount of stripping had occurred at 22 months; however, subsequent corings did not reveal significant additional stripping. Although considerable stripping has developed, the absence of pavement distress is believed to be related to a low traffic volume. Strength tests indicate that stripping is continuing; therefore, more time might be necessary to reach the predicted level of damage.

Download or read book Field Evaluation and Correlation of Laboratory Test Method for Predicting Moisture induced Damage to Asphalt Concrete written by Robert P. Lottman and published by . This book was released on 1982 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Moisture induced Damage to Asphaltic Concrete written by and published by . This book was released on 1964 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation and Prediction of Moisture induced Damage in Asphaltic Concrete Pavements written by Serji N. Amirkhanian and published by . This book was released on 1990 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Moisture Induced Damage to Asphalt Concrete Design Mixes written by Bradley J. Bruce and published by . This book was released on 1978 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many asphalt, aggregate, mineral filler and chemical additive combinations were tested for the correlation of the 'E' Modulus Test with visual assessment of the condition of the asphalt aggregate specimen and the results of other tests methods including Marshall Method, Resilient Modulus, Immersion Compression and Maximum Tensile Stress. Specimens used in conventional tests were treated in the manner prescribed by the method. Specimens for 'E' Modulus, Resilient Modulus and Maximum Tensile Stress were tested both before and after subjecting them to severe artificial conditions that were conceived as comparable to several years of natural exposure to the elements. 'E' Modulus was judged to be too inconsistent with other variables to be used as an acceptable criteria. The data suggests that Maximum Tensile Stress and Resilient Modulus tests would be valid tools for the evaluation of asphalt aggregate susceptibility to moisture damage. Immersion Compression data could be interpreted to provide information about stripping resistance and could serve to aid in the fabrication of mixes with reduced moisture susceptibility. The Marshall Method Testing provided inconsistent indications of moisture susceptibility using either flow or stability values.

Download or read book Compatibility of a Test for Moisture induced Damage with Superpave Volumetric Mix Design written by Jon A. Epps and published by Transportation Research Board. This book was released on 2000 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Moisture Damage in Asphalt Concrete written by Russell G. Hicks and published by Transportation Research Board. This book was released on 1991 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to pavement designers, construction engineers, maintenance engineers, and others interested in avoiding or limiting moisture damage in asphalt concrete. Information is provided on physical and chemical explanations for moisture damage in asphalt concrete, along with a discussion of current practices and test methods for determining or reducing the susceptibility of various asphalt concrete components and mixtures to such damage. Moisture damage in asphalt concrete is a nationwide problem which often necessitates premature replacement of highway pavement surfaces. This report of the Transportation Research Board describes the underlying physical and chemical phenomena responsible for such damage. Current test methods used to determine the susceptibility of asphalt concretes, or their constituents, to moisture damage are described and evaluated. Additionally, current practices for minimizing the potential for moisture damage are examined.

Download or read book Evaluation of Procedures Used to Predict Moisture Damage in Asphalt Mixtures written by Kevin D. Stuart and published by . This book was released on 1986 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Procedures for evaluating the moisture susceptibility of asphalt mixtures were compared by performing them on mixtures having a known history of susceptibility. Data included the retained ratios, visual stripping, mechanical values (tensile strength, stability, etc.), saturation, and swell. The most promising procedures appeared to be the NCHRP 246 and NCHRP 274.