moisture damage evaluation of moisturesensitive asphalt

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Moisture Damage Evaluation of Moisture-Sensitive Asphalt

Moisture Damage Evaluation of Moisture-Sensitive Asphalt Mixes. Theresa Bernadette George. CSIR. Acknowledgments Dr J.K. Anochie Boateng (Council for Scientific and Industrial Research) ... evaluate the combined effects of moisture damage and rutting potential. POST COMPACTION PHASE: densification of the mix under wheel load. CREEP PHASE ...

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EVALUATION OF MOISTURE DAMAGE WITHIN ASPHALT

Evaluation of Moisture Damage within Asphalt Concrete Mixes. (August 2003) Brij D. Shah, B.E., Gujarat University Chair of Advisory Committee: Dr. Dallas N. Little Pavements are a major part of the infrastructure in the United States. Moisture damage of these pavements is a significant problem. To predict and prevent this kind of moisture

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Nano-scale evaluation of moisture damage in asphalt

Moisture damage is one of the major problems of asphalt pavements in United States. Moisture damage problem in asphalt has been studied for decades; still it remains an unsolved problem. Traditional macro-scale tests and methods failed to describe how and what factors affect moisture damage. Because moisture damage in asphalt is related to ...

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Alternate Methods for Evaluation of Moisture Sensitivity ...

Sep 30, 2017  Alternate Methods for Evaluation of Moisture Sensitivity of Asphalt Mixtures FINAL REPORT by Akhtarhusein A. Tayebali, Ph.D., P.E. M Pour-Ghaz, Ph.D. Abhilash Kusam Reza Rashetnia Dept. of Civil, Construction and Environmental Engineering North Carolina State University Raleigh, NC September 30, 2017

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Evaluating Moisture Susceptibility of Asphalt Mixes (MPC ...

rutting and moisture susceptibility of a HMA mix. The ability of the GLWT to predict moisture damage has yet to be studied. Objective of Research The principle objectives of this research are to: 1. investigate moisture susceptibility of asphalt mixes, 2. evaluate the effect of various numbers of freeze-thaw cycles on the mechanical

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EVALUATION OF THE ASPHALT PAVEMENT ANALYZER

EVALUATION OF THE ASPHALT PAVEMENT ANALYZER FOR MOISTURE SENSITIVITY TESTING Randy C. West, Jingna Zhang, and Allen Cooley, Jr. INTRODUCTION In the Southeast U.S., many of the conditions that affect moisture damage (a.k.a stripping) of asphalt pavements are prevalent. The climactic conditions of warm temperatures and high

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Moisture Damage Evaluation of Asphalt Mixture by ...

Moisture Damage Evaluation of Asphalt Mixture by Considering Both Moisture Diffusion and Repeated Load Conditions DingXin Cheng Ph.D. Candidate, Graduate Research Assistant, Texas Transportation ...

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Use of Moisture Induced Stress Tester (M.i.S.T) to ...

an alternate test method, and a conditioning procedure that can quantify the adhesive and cohesive damage in asphalt mixtures due to moisture; (2) to quantify adhesive damage in asphalt mixture using the boil test along with color measuring device; (3) to investigate the use of M.i.S.T conditioning procedure to quantify the cohesive damage in

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Developing Evaluation Method of Moisture Susceptibility ...

use of CMA to date. To mitigate the potential for moisture damage in CMA, it is necessary to include a simple and effective method for evaluating moisture susceptibility in the material selection phase of the mix design process. The most direct way to prevent moisture sensitivity is to require a

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Moisture Damage in Asphalt Concrete Mixtures: State of the ...

Proper evaluation of the moisture-induced damage in asphalt concrete pavements, however, still remains a challenging task. This becomes especially challenging when establishing a correlation between the laboratory test results and the observed field performance. Moisture related damage was incorporated in the original SuperpaveTM

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Development and evaluation of test procedures to identify ...

Development and evaluation of test procedures to identify moisture damage prone hot mix asphalt pavements Andrea Nicole Kvasnak Iowa State University Follow this and additional works at:https://lib.dr.iastate/rtd Part of theCivil Engineering Commons

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Evaluation of rutting, fatigue and moisture damage ...

Jun 15, 2016  This present study examines rutting, moisture damage and fatigue performance of CL-30B modified asphalt binder. Superpave rutting parameter was used for investigating the rutting performance while the SFE approach and the LAS test were selected for evaluating moisture damage and fatigue performance respectively.

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The Effects of Moisture Damage on Asphalt Mixtures ...

was introduced in the 1950s as the first moisture damage test on compacted samples under the . ASTM. standard. More recent attempts to develop a test to predict the moisture sensitivity of asphalt mixtures took place in the 1960s and 1970s with the work of Lottman (1978) and Schmidt and Graf (1972). The

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Moisture damage of asphalt mixes : Causes and remedies

action of water. Moisture damage (Caro et al, 2008) : What Kiggundu and Roberts called stripping is Moisture damage Stripping is a distress caused by moisture damage just as : Displacement (= stripping) Ravelling Hydraulic scour * S. Caro, E. Masad, A. Bhasin and D.N. Little –Moisture susceptibility of asphalt mixtures –International ...

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Hot mix asphalt (HMA) moisture susceptibility analysis ...

Dec 10, 2019  Numerous studies have been conducted to identify moisture sensitive mixes during mix design by simulating various mechanisms of moisture damage. These methods involve the determination of changes in strength or stiffness of asphalt mixes due to moisture conditioning. The objective of this study is to understand the coupled problem of moisture induced material loss and

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Development and Evaluation of Test Methods to Evaluate ...

Moisture damage in hot-mix asphalt (HMA) mixtures occurs when water can infiltrate the pavement system. Pore water in mixtures can cause premature failure of HMA pavements, primarily through loss of adhesion between the asphalt binder and the aggregates or the loss of cohesion in the asphalt binder.

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Moisture Damage Cutoff Ratio Specifications for Asphalt ...

Moisture damage in asphalt concrete (AC) mixtures as pave­ ments occurs in many locations and results in loss of perfor­ mance life. Application of related control specifications is a strong factor in AC mixture design for highway agency lab­ oratories. Cutoff ratios will continue to be used in the near future as moisture damage specifications.

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Evaluation of moisture damage mechanisms and effects of ...

This study presents an approach to help understand moisture damage mechanisms and to evaluate the effects of hydrated lime as moisture damage resisting agents. To this end, various performance testing of hot mix asphalt (HMA) samples induced by moisture damage and several fundamental property measurements (stiffness, strength, toughness, and ...

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Proposed Approach for Evaluation of Cohesive and Adhesive ...

Jan 01, 2016  Moisture damage to asphalt pavements continues to be a major concern after decades of research. Two of the most common moisture failure modes in asphalt mixtures are adhesive failures between the aggregate and binder and cohesive failures in the binder or mastic.

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Evaluation of HMA Moisture Sensitivity

Moisture damage is a significant problem for flexible pavements. The damaging effect of moisture on pavements, specifically hot mix asphalt (HMA), is a significant environmental distress that should be considered. As a pavement is subjected to a freeze/thaw cycle, the material expands and contracts.

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Risk Assessment of Moisture Sensitivity for Asphalt Mixtures

Overview: Moisture, whether it is in the form of vapor or water, contributes to the premature failure of asphalt pavements through deterioration of the asphalt mixture. There are three mechanisms in which moisture may degrade an asphalt matrix: (1) loss of cohesion (structure); (2) failure of the adhesion (bond) between aggregate and asphalt (which is referred to as stripping); and (3 ...

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Investigation of Moisture Sensitivity of Hot Mix Asphalt ...

Moisture damage could manifest itself in asphalt pavements either due to stripping or the softening of asphalt, both of which result in loss of ability to resist traffic- induced stresses. Asphalt concrete mix derives its strength from the cohesion of the binder, and the interlocking and frictional resistance of the aggregates. The cohesion of

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The Pennsylvania State University EVALUATION OF

Furthermore, stripping and moisture damage in these gravel aggregates are of concern even though most of these aggregates exhibit excellent skid resistance and durability. As a result of this situation, research was conducted to evaluate resistance of moisture damage of hot-mix asphalt concrete using District 1-0 aggregates.

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Test Method to Determine Aggregate/Asphalt Adhesion ...

testing results for mixes found to be consistently resistant to moisture damage. The second objective involved initial evaluation of the fracture energy parameter to replace tensile strength as the mechanical test parameter used to quantify the effect of moisture on asphalt mixtures.

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Moisture Sensitivity of Hot-Mix Asphalt (HMA) Mixtures in ...

reducing moisture damage by improving binder-aggregate interfacial properties, which are validated from the integrated experimental-computational evaluation. 17. Key Words Moisture Damage, Asphalt, Hydrated Lime, Fly Ash, Pavement Performance 18. Distribution Statement 19. Security Classification (of this report) Unclassified 20.

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Laboratory evaluation of resistance to moisture damage in ...

Moisture damage can be defined as the loss of strength and. durability in asphalt mixtures due to the effects of moisture. Moisture can damage HMA in two ways: (1) loss of bond be-. tween asphalt ...

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Moisture Susceptibility – Pavement Interactive

Moisture damage is the result of moisture interaction with the asphalt binder-aggregate adhesion within a HMA mixture. This interaction can cause a reduction of adhesion between the asphalt binder and aggregate (Figure 2 and Figure 3), called stripping, which can lead to various forms of HMA pavement distress including rutting and fatigue cracking.

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Moisture Damage Characterization of Warm-Mix Asphalt ...

KIM, ZHANG, AND BAN, CONSTRUCTION AND BUILDING MATERIALS 31 (2012) 2 period of years is necessary since moisture damage can be accelerated after rutting or cracking as a later-stage pavement distress. Keywords: warm-mix asphalt, moisture damage, field performance, laboratory evaluation 1.

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The Effects of Moisture Damage on Asphalt Mixtures ...

was introduced in the 1950s as the first moisture damage test on compacted samples under the . ASTM. standard. More recent attempts to develop a test to predict the moisture sensitivity of asphalt mixtures took place in the 1960s and 1970s with the work of Lottman (1978) and Schmidt and Graf (1972). The

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Development of a Moisture Sensitivity Test for Asphalt ...

However, the accuracy of moisture susceptibility “pass/fail” criteria for the wheel-track testing on typical Louisiana asphalt mixtures is limited. This study proposes to . perform a comprehensive evaluation of current moisture damage test procedures and to establish a reliable protocol with state-of-the-art moisture conditioning and ...

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Laboratory Study On The Durability Characteristics ...

5.2 Discussion on Durability Index (DI) Durability index is the method to predicting and controlling moisture damage in asphalt mixtures, where the evaluation of moisture damage in asphalt mixture were based on the ratio of mechanical properties of wet

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EVALUATION OF CYCLIC PORE PRESSURE INDUCED

Moisture has been sighted as a cause of several forms of damage in hot-mix asphalt (HMA) pavements. These forms include rutting, raveling, and cracking and they severely affect the performance and service life of HMA pavements. Moisture damage in HMA mixtures occurs when water can penetrate the pavement system. This damage can

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Advanced Characterisation of Hot Mix Asphalt with Recycled ...

design was conducted according to the current method for traditional asphalt mixes in South Africa. The results indicate that the glass-asphalt mix conforms to the South African mix design criteria. Furthermore, the moisture susceptibility of the glass-asphalt mix was evaluated with and without the use of anti-stripping additives.

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