Suggested Citation:"2 Resilient Modulus Testing of Asphalt Concrete."Transportation Research Board. 1997. NCHRP Web Doc 14 Laboratory Determination of Resilient Modulus for Flexible Pavement Design: Final Report.
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2 Resilient Modulus Testing of Asphalt Concrete 10–96; 3 Resilient Modulus Evaluation of Aggregate Base and Subgrade Materials 97–250; 4 Significant General Findings 251–277; 5 Summary, Conclusions and General
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2 Resilient Modulus Testing of Asphalt Concrete 10–96; 3 Resilient Modulus Evaluation of Aggregate Base and Subgrade Materials 97–250; 4 Significant General Findings 251–277; 5 Summary, Conclusions and General
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2 Resilient Modulus Testing of Asphalt Concrete 10–96; 3 Resilient Modulus Evaluation of Aggregate Base and Subgrade Materials 97–250; 4 Significant General Findings 251–277; 5 Summary, Conclusions and General Recommendations 278–285; References 286–294; A: Diametral Test Equipment and Equations for Data Reduction 295–314
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determination of the resilient modulus of hot mix asphalt (HMA) concrete, using repeated load indirect tensile test techniques. The procedure involves resilient modulus test-ing at 77oF. 1.2 Testing Prerequisites Resilient modulus testing shall be conducted after sys-tem response has been verified by testing synthetic speci-
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In this study, the resilient moduli of bituminous mixtures are measured in the laboratory by the indirect tensile test procedure for eight asphalt concrete samples according to NCHRP and ASTM procedures.
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determination of the resilient modulus of hot mix asphalt (HMA) concrete, using repeated load indirect tensile test techniques. The procedure involves resilient modulus test-ing at 77oF. 1.2 Testing Prerequisites Resilient modulus testing shall be conducted after sys-tem response has been verified by testing synthetic speci-
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project was assigned for testing resilient modulus of bound, i.e., asphalt concrete, materials. A comparison of various empirical methods is conducted based on this research outcomes, and the method leading to the closest approximation to the measured modulus values are
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pavements and to compare the measured values with those predicted by the NCHRP Design Guide. To achieve these objectives, asphalt concrete beams were tested in third point-bending at constant strain, at four temperatures and four levels of strain. Dynamic resilient modulus tests were performed on asphalt cylindrical
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Work on Phase II of the project will not begin until approved by NCHRP. Phase II: (5) Execute the work plan approved in Task 4. Based on the results of this work, recommend test methods for measuring the resilient modulus and thickness of the asphalt concrete layers.
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RESILIENT MODULUS OF ASPHALT CONCRETE by Dallas N. Little William W. Crockford Venkata Krishna Reddy Gaddam Research Report 1177-1F Development of Routine Resilient Modulus (MR) Testing for Asphalt Bound Materials Conducted for The Texas Department of
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The specific tasks of the research as given in the REP are as follows: I. Review the state-of-the-art procedures and equipment for laboratory resilient modulus testing. 2. Develop detailed Laboratory test procedures for evaluating the resilient modulus of asphalt concrete, aggregate base/subbase materials, and subgrade soils. 3.
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in the National Cooperative Highway Research Program (NCHRP) 9-29. In addition, a preliminary investigation explored the possibility of measuring the complex modulus of asphalt mixtures using a less expensive vibration testing device. The raw test data was manipulated to obtain modulus and phase angle values for each
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conclusions on the effect of FORTA fibers on resilient modulus values. Table 1 shows the estimated values for the resilient modulus of the FORTA reinforced asphalt concrete mixtures based on this correlation. Figure 1. Relationship between resilient modulus and dynamic modulus at 5 Hz (Xiao 2009). Table 1.
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Also, the NCHRP Project 1–28 proposed a new resilient modulus testing procedure of asphalt concrete using the SHRP LG Device. However, the feasibility of a new testing procedure using the SHRP LG Device should be proved by other testing agencies in order to be accepted as a standardized method.
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Jun 27, 2017 However, the first 1000 conditioning cycles of the AASHTO T307-99 resilient modulus testing procedure are often used for permanent deformation modeling. The NCHRP 1-37A design methodology characterizes the permanent deformation behavior of unbound base, subbase, and subgrade materials using a model based on work by Tseng and Lytton (1989):
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Resilient Modulus of Recycled Asphalt Pavement and Recycled Concrete Aggregate Ozlem Bozyurt 1 , James M. Tinjum, PhD, PE, M. ASCE 2 , Young-Hwan Son, PhD 3 , Tuncer B.
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Accelerated Mixture Performance Test (AMPT) One of the newest tests to the asphalt industry is the AMPT. The AMPT was developed under the NCHRP 9-29 research following guidance from the NCHRP 9-19 research. It is considered a more simple and practical method of measuring the dynamic modulus (E*) and rutting potential, called Flow Number, of a ...
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2 resilient modulus testing of asphalt concrete nchrp, the data are obtained from workability measuring devices developed by the authors the value of r lt sup gt 2 lt sup gt implies that about 95 variation in the values of torque can be explained by the variation in mixing and compaction
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GCTS offers multiple testing solutions to perform dynamic modulus tests on asphalt pavement specimens. These include the economical AMPT-15, the advanced ADM-100, and the versatile APT-100. The Asphalt Mixture Performance Tester (AMPT-15) was designed to easily perform a full range of asphalt tests according to AASHTO, ASTM, and NCHRP standards. The small
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The NCHRP 1-37A Guide for Mechanistic-Empirical Design of New and Rehabilitated Design Structures introduces the dynamic modulus as the material property to
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tester for asphalt concrete. One such methodology is a ... resilient modulus and its California Bearing Ratio. This AMPT test ... National Cooperative Highway Research Program (NCHRP) Project 9-19: Superpave Support and Performance Models Management provided guidance to
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Project 1-28A: Harmonized Test Methods for Laboratory Determination of Resilient Modulus for Flexible Pavement Design (summarized in NCHRP Research Results Digest 285) Project 1-54: Guidelines for Limiting Damage to Flexible and Composite Pavements Due to the Presence of
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All of the asphalt concrete samples were subjected to diametral resilient modulus testing (ASTM D 4123) in the laboratory. The mean resilient modulus was 600 ksi at 70 degrees F and 275 ksi at 90 degrees F. These modulus values correspond to a testing frequency of 1.25 Hz.
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Also, the NCHRP Project 1–28 proposed a new resilient modulus testing procedure of asphalt concrete using the SHRP LG Device. However, the feasibility of a new testing procedure using the SHRP LG Device should be proved by other testing agencies in order to be accepted as a standardized method.
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Resilient Modulus of Recycled Asphalt Pavement and Recycled Concrete Aggregate Ozlem Bozyurt 1 , James M. Tinjum, PhD, PE, M. ASCE 2 , Young-Hwan Son, PhD 3 , Tuncer B.
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National Cooperative Highway Research Program . Transportation Research Board . of . The National Academies . ... Resilient Modulus Test ... Heave in Asphalt Pavement (Si 2008)..... A-18 Figure A-15. Cracking of Concrete Pavement ...
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Accelerated Mixture Performance Test (AMPT) One of the newest tests to the asphalt industry is the AMPT. The AMPT was developed under the NCHRP 9-29 research following guidance from the NCHRP 9-19 research. It is considered a more simple and practical method of measuring the dynamic modulus (E*) and rutting potential, called Flow Number, of a ...
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2 resilient modulus testing of asphalt concrete nchrp, the data are obtained from workability measuring devices developed by the authors the value of r lt sup gt 2 lt sup gt implies that about 95 variation in the values of torque can be explained by the variation in mixing and compaction
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Jun 09, 2011 The resilient modulus can be expressed as 𝑀 𝑅 = 𝜎 𝜀 𝑟, ( 1) where 𝜎 is the applied stress and 𝜀 𝑟 is the recoverable axial strain. 𝑀 𝑅 describes the mechanical response of a pavement base or subgrade to the applied cyclic (traffic) load, and, hence it is considered to be an essential parameter for pavement design.
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requires Marshall size specimens (2). The diarnetral test procedure to determine the resilient modulus of asphaltic concrete was developed by Schmidt (3) and is standardized by ASTM D4123-82 test procedure. According to this method, a pulsating compressive load is applied across a vertical diarnetral plane of Marshall
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GCTS offers multiple testing solutions to perform dynamic modulus tests on asphalt pavement specimens. These include the economical AMPT-15, the advanced ADM-100, and the versatile APT-100. The Asphalt Mixture Performance Tester (AMPT-15) was designed to easily perform a full range of asphalt tests according to AASHTO, ASTM, and NCHRP standards. The small
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Pavement Systems”, currently under development in NCHRP Project 1-37A, the modulus of the asphalt concrete -at all analysis levels of temperature and time rate of load- is determined from a master curve constructed at a reference temperature, generally 70F. Master curves are constructed using the principle of time-temperature superposition. The
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NCHRP 1-34D: Effects of Subsurface Drainage on Performance of Asphalt and Concrete Pavements, Evaluation, and Analysis of Long-Term Pavement Performance SPS-1 and SPS-2 Field Sections 11/18/2002 to 12/31/2006
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