Effects of Laboratory Asphalt Concrete Specimen

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Effects of Laboratory Asphalt Concrete Specimen ...

Effects of Laboratory Asphalt Concrete Specimen Preparation Variables on Fatigue and Permanent Deformation Test Results Using Strategic Highway Research Program A-003A Proposed Testing Equipment JoHN HARVEY AND CARLL. MoNISMITH A study was carried out to determine the effects of laboratory specimen preparation variables on permanent deformation, fa­ tigue, and flexural stiffness

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[PDF] Effects of laboratory asphalt concrete specimen ...

A study was carried out to determine the effects of laboratory specimen preparation variables on permanent deformation, fatigue, and flexural stiffness performance, as measured with test equipment and methods by a Strategic Highway Research Program contractor. The specimen preparation variables included in the project were binder type, aggregate type, fines content, air-void content ...

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EFFECTS OF LABORATORY ASPHALT CONCRETE SPECIMEN ...

EFFECTS OF LABORATORY ASPHALT CONCRETE SPECIMEN PREPARATION VARIABLES ON FATIGUE AND PERMANENT DEFORMATION TEST RESULTS USING STRATEGIC HIGHWAY RESEARCH PROGRAM A-003A PROPOSED TESTING EQUIPMENT. A study was carried out to determine the effects of laboratory specimen preparation variables on permanent deformation,

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Effects of Material Properties, Specimen Geometry, and ...

Effects of Material Properties, Specimen Geometry, and Specimen Preparation Variables on Asphalt Concrete Tests for Rutting A Final Report for: The Federal Highway Administration Office of Technology Applications Washington, D. C. By: J. Harvey, I. Guada, F. Long March, 1999

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The effect of long-term laboratory aging on asphalt ...

Request PDF The effect of long-term laboratory aging on asphalt concrete fracture energy A pavement ages over time from the effects of the environment and traffic loading. This study was ...

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Quantifying Laboratory Compaction Effects on the Internal ...

01/01/1999  Specimens compacted with the SGC were found to have aggregates with more preferred orientation and fewer contacts than specimens compacted with the LKC. In addition, SGC specimens were found to have more air voids at the top and bottom, whereas air voids in LKC specimens were found to increase from the top to the bottom.

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B: Asphalt Concrete Specimen Preparation NCHRP Web Doc ...

APPENDIX B: ASPHALT CONCRETE SPECIMEN PREPARATION Watsonville granite aggregate and Valley AR-4000 grade asphalt were used for the asphalt concrete mix. Two different gradations, medium and coarse, were used during the course of this study and are descnbed in Table B.~. Table B. ~ . Medium and Coarse Gradations Percent Retained on Each Sieve by Weight Sieve Size Medium

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ASPHALT TESTING LABORATORY MANUAL

ASPHALT TESTING LABORATORY. 3. Pour the bitumen in the mold and take care not to disarrange the pieces of the mold. Pour the material in a thin stream back and forth from end to end of the mold until the mold is more than level full. 4. Allow to cool in air at temp. 15 - 30°C for 35 min. 5. Then, place it in the water bath at test temperature (25°C) for 35 min. 6. Remove the test specimens ...

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Effect of Delay in Testing Asphalt Concrete Specimens for ...

Effect of Delay in Testing Asphalt Concrete Specimens for Stability. The Central Laboratory has been delaying the mix design testing of 2 1/2" X 4" Marshall specimens for stability, until the next day after molding. For exam­ ple, if the mixes are made and samples molded on Friday a man would have to

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Effects of Material Properties, Specimen Geometry, and ...

Effects of Material Properties, Specimen Geometry, and Specimen Preparation Variables on Asphalt Concrete Tests for Rutting A Final Report for: The Federal Highway Administration Office of Technology Applications Washington, D. C. By: J. Harvey, I. Guada, F. Long March, 1999

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Effect of Delay in Testing Asphalt Concrete Specimens for ...

The Central Laboratory has been delaying the mix design testing of 2 1/2" X 4" Marshall specimens for stability, until the next day after molding. For example, if the mixes are made and samples molded on Friday a man would have to come in and work on Saturday to test these specimens. The reason for this is that the ASTM-01559 "Resistance to Plastic Flow of Bituminous Mixes Using Marshall ...

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[PDF] EFFECTS OF TEST PARAMETERS ON RESILIENT MODULUS

The resilient modulus of a laboratory-compacted asphalt concrete specimen is dependent on many factors, including the test system used, the test operator, the method of compaction, the level of compaction, and parameters or conditions in the test procedure such as temperature, load frequency, load duration, and load-induced diametral strain level. The results of a parametric study involving ...

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Effects of Material Properties, Specimen Geometry, and ...

Author(s): Harvey, J.; Guada, Irwin M.; Long, Fenella Abstract: This report presents the results of laboratory tests and analyses performed as a part of the effort by the Federal Highway Administration (FHWA) to develop simple performance tests for asphalt concrete mix analysis and design for highway pavement applications. Three specific areas are addressed, namely: 1. The non-linearity of ...

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Analysis of Representative Volume Element for Asphalt ...

12/12/2011  Analysis of Representative Volume Element for Asphalt Concrete Laboratory Shear Testing ... (RSST-CH) laboratory test results for different-sized specimens and to determine the effects of this precision and bias on predicted rutting performance. The effect of RSST-CH variability was quantified by using a statistical sampling method called bootstrapping. The contribution of test

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Durability of Asphalt Concrete Subjected to Deteriorating ...

The asphalt concrete specimens were prepared in laboratory. Some specimens contained liquid adhesive agent—namely, fatty amine—and others did not. The detrimental effect of water and frost was clearly identified. Also, the results of field investigation—condition survey of existing pavements and the results of laboratory tests on water and frost resistance of samples cored from the these ...

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Selection of Laboratory Test Specimen Dimension for ...

To characterize asphalt concrete, laboratory testing is routinely performed. The concept of the representative volume element for determining the minimum specimen dimensions to obtain reliable and repeatable laboratory test data is discussed here. Two conceptual laboratory tests that are currently used to characterize asphalt concrete—the restricted triaxial test and the simple shear test at ...

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Laboratory Mix Design of Asphalt Mixture Containing ...

14/01/2014  This paper presents a study on the production of asphalt test specimens in the laboratory containing reclaimed asphalt. The mixtures considered were stone mastic asphalt concrete mixtures containing up to 30% of reclaimed asphalt. Specimens were compacted to the reference density obtained from the Marshall mix design. Gyration compaction method was used for preparing specimens

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pdf Download Comparing the Volumetric and Mechanical ...

In Phase I, datasets of laboratory and field test data were collected and pooled in a meta-analysis in an attempt to determine levels of variability in asphalt mixtures and the factors causing variability among and between the three specimen types. Despite the inclusion of 25 extensive datasets representing roughly 8, 000 individual mixtures in the meta-analysis, the results of the analysis ...

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Effect of Delay in Testing Asphalt Concrete Specimens for ...

Effect of Delay in Testing Asphalt Concrete Specimens for Stability. The Central Laboratory has been delaying the mix design testing of 2 1/2" X 4" Marshall specimens for stability, until the next day after molding. For exam­ ple, if the mixes are made and samples molded on Friday a man would have to

Get price

Effects of Material Properties, Specimen Geometry, and ...

Effects of Material Properties, Specimen Geometry, and Specimen Preparation Variables on Asphalt Concrete Tests for Rutting A Final Report for: The Federal Highway Administration Office of Technology Applications Washington, D. C. By: J. Harvey, I. Guada, F. Long March, 1999

Get price

EFFECTS OF TEST PARAMETERS ON RESILIENT MODULUS OF ...

The resilient modulus of a laboratory-compacted asphalt concrete specimen is dependent on many factors, including the test system used, the test operator, the method of compaction, the level of compaction, and parameters or conditions in the test procedure such as temperature, load frequency, load duration, and load-induced diametral strain level. The results of a parametric study involving ...

Get price

Effect of Delay in Testing Asphalt Concrete Specimens for ...

The Central Laboratory has been delaying the mix design testing of 2 1/2" X 4" Marshall specimens for stability, until the next day after molding. For example, if the mixes are made and samples molded on Friday a man would have to come in and work on Saturday to test these specimens. The reason for this is that the ASTM-01559 "Resistance to Plastic Flow of Bituminous Mixes Using Marshall ...

Get price

Effects of Material Properties, Specimen Geometry, and ...

Author(s): Harvey, J.; Guada, Irwin M.; Long, Fenella Abstract: This report presents the results of laboratory tests and analyses performed as a part of the effort by the Federal Highway Administration (FHWA) to develop simple performance tests for asphalt concrete mix analysis and design for highway pavement applications. Three specific areas are addressed, namely: 1. The non-linearity of ...

Get price

(PDF) A LABORATORY TEST SYSTEM FOR PREDICTION OF ASPHALT

Representative results are described and shown for a practical laboratory test system developed to predictmoisturedamagein asphalt concrete pavements or to monitor the rate of moisture damage in existing pavements. Moisture-damage predictions are

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Laboratory Performance Evaluation of High Modulus Asphalt ...

The objective of this study is to evaluate comprehensive performance of high modulus asphalt concrete (HMAC) and propose common values for establishing evaluation system. Three gradations with different modifiers were conducted to study the high and low temperature performance, shearing behavior, and water stability. The laboratory tests for HMAC included static and dynamic modulus tests ...

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Laboratory Mix Design of Asphalt Mixture Containing ...

14/01/2014  This paper presents a study on the production of asphalt test specimens in the laboratory containing reclaimed asphalt. The mixtures considered were stone mastic asphalt concrete mixtures containing up to 30% of reclaimed asphalt. Specimens were compacted to the reference density obtained from the Marshall mix design. Gyration compaction method was used for preparing specimens

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Table of Contents NCHRP Web Doc 14 Laboratory ...

table of contents (continuei)) appendix a - diametral test equipment and equations for data reduction appendix b - asphalt concrete specimen preparation appendix c - diametral test procedure for resilient modulus of asphalt concrete appendix d - repeated load test system calibration appendix e - test procedure for resilient modulus of unstabilized aggregate base and subgrade materials appendix ...

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Influence of mix design parameters on asphalt concrete ...

Aging is considered an important factor contributing to the deterioration of asphalt concrete (AC) pavements. As a result of aging, the resistance of AC pavements to various forms of cracking including fatigue, thermal, or block is reduced. Therefore, it is critical to understand the effect of aging on AC pavement cracking development and identify the effect of AC mix design parameters on the ...

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