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Transportation Research Record 2018 : OnlineFirst Articles -- [Temporary Record for Indexing]
2018 ... Transportation Research Board · This catalog record for 2018 TRR articles serves to provide indexing for Texas-related "OnlineFirst" papers. It will be replaced by individual records for the 52 thematic issues of TRR planned for later publication. --cataloger · CONTENTS: Roadway-Related Truck Crash Risk Analysis: Case Studies
TRR Online First ... TRR Online First
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0-6854, Engineering the Properties of Asphalt Mixtures Using Carbon Nanotubes
2018 ... Research Performed by: Center for Transportation Research; Research Supervisor: Navid Saleh; Researchers: Angelo Filonzi [and three others] · "Several existing studies have shown an improvement in the high-temperature properties of asphalt binders due to the addition of nanomaterials. However, there is an increasing
6854 Summary [CTR] ... PSR 0-6854-S ... Project Summary
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209 KB
Evaluating the Use of Nanomaterials to Enhance Properties of Asphalt Binders and Mixtures
2018 ... Angelo Filonzi [and five] · Traditional polymer modified binders are typically used to achieve a target performance grade (PG) and also to enhance resistance of the binder to distresses such as rutting, fatigue cracking, and low-temperature cracking. Conventional modifiers used with asphalt binders are often expensive and are not
6854-1/P1 [CTR] ... FHWA/TX-17/0-6854-1; [Product 0-6854-P1]
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Authors corrected in this version
0-6857, Cost-Effective Alternatives to Seal Coats
[2018] ... Research Performed by: UT Austin’s Center for Transportation Research; University of Texas at El Paso; Research Supervisor: Dr. Amit Bhasin; Researchers: Angelo Filonzi [and four others] · "Pavement preservation is critical to maintain and operate a cost-effective and safe pavement infrastructure... There are
6857 Summary [CTR] ... PSR 0-6857-S ... Project Summary
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173 KB
Design and Construction of Ultra Thin Overlays as an Alternative to Seal Coats
2018 ... Ramez Hajj [and five others] · Friction loss is one of the most critical issues faced by agencies responsible for preserving a pavement structure. There are various methods used for surface treatments including seal coats, slurry seals, and ultra thin asphalt concrete overlays. Ultra thin overlays have increased in popularity
6857-1 [CTR] ... FHWA/TX-18/0-6857-1; [Product 0-6857-P1]; [Product 0-6857-P2]
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5.9 MB
Asphalt Materials and Mixtures. Volume 2
2017 ... [various authors] · "This issue contains fifteen papers on asphalt materials and mixtures. Specific topics covered are as follows: specifications for asphalt emulsions used in microsurfacing treatments; evaluating aging and rejuvenation of binders; statistical analyses of aggregate mineral-binder adhesion; and evolution of the surface
TRR 2632 ... TRR 2632 ... Transportation Research Record (TRR), 2632
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Asphalt Materials and Mixtures. Volume 3
2016 ... [various authors] · "This issue contains twelve papers concerning asphalt materials and mixtures. Specific topics covered are as follows: nondestructive evaluation of aging levels of rejuvenated asphalt concrete pavements; development of a test protocol to measure uniaxial fatigue damage and healing; comparison of fracture
TRR 2576 ... TRR 2576 ... Transportation Research Record (TRR), 2576
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Asphalt Materials and Mixtures. Volume 1
2016 ... [various authors] · "This issue contains 15 papers concerning asphalt materials and mixtures. Specific topics covered include: fatigue performance of re-refined engine oil bottom-modified asphalt; evolution of asphalt binder microstructure; effect of polymer and oil modification on the aging susceptibility of asphalt binders; and
TRR 2574 ... TRR 2574 ... Transportation Research Record (TRR), 2574
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Properties of foamed asphalt for warm mix asphalt applications
2015 ... David E. Newcomb (and six others) · "This report presents proposed AASHTO standard test methods for measuring performance-related properties of foamed asphalts and designing foamed asphalt mixes with satisfactory aggregate coating and workability. Thus, the report will be of immediate interest to materials engineers
NCHRP Report 807 ... NCHRP Report 807 ... Report (National Cooperative Highway Research Program -
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33.1 MB
Emulsified Asphalt Residue Recovery and Characterization Using Combined MAB-DSR Procedure
[2014] ... Arash Motamed, Nazmus Sakib, Amit Bhasin · A new procedure has been developed for residue recovery of emulsified asphalt using a moisture analyzer balance (MAB). MAB recovery method is quick and simple compared to traditional recovery procedures such as distillation (ASTM D6997) or oven evaporation (ASTM D6934).
Poster 2014 CTR Symp: Motamed
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Characteristics of Asphalt Binders Foamed in the Laboratory to Produce Warm Mix Asphalt
[2014] ... Zelalem Arega [and 4 others] · Foamed asphalt binders are increasingly being used to produce Warm Mix Asphalt. This paper presents the findings from a study conducted to (i) identify a repeatable and accurate method to characterize the quality of asphalt binder foams and (ii) use this method to evaluate the influence of
Poster 2014 CTR Symp: Arega
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Rate and Confinement Effect on Tensile Strength of Asphalt Binder
[2014] ... Sharmin Sultana, Amit Bhasin, Kenneth M. Liechti · Asphalt binder is a viscoelastic material that works as a glue to bind the aggregate particles to form an asphalt concrete composite. Fatigue cracking is a predominant form of distress in the asphalt pavements that is primarily dictated by the ability of the asphalt binder to resist
Poster 2014 CTR Symp: Sultana
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Fatigue and Fracture Properties of Aged Binders in the Context of Reclaimed Asphalt Mixes
2014 ... by Arash Motamed [and three others] · Evidence in the literature indicates that the stiffness of the asphalt binder increases and ductility of the binder decreases with oxidative aging. Typically for unmodified asphalt binders, increase in stiffness or decrease in ductility is regarded as detrimental to the fatigue cracking or fracture
2014-600451-00076-1 [CTR] ... SWUTC/14/600451-00076-1
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1.4 MB
Wetting Characteristics of Asphalt Binders at Mixing Temperatures
2013 ... by Patricia Hennig Osmari, Zelalem Arega, Amit Bhasin · Conventional hot mix asphalt (HMA) is produced by heating the aggregate and the asphalt binder to elevated temperatures that are typically in the range of 150C to 160C. These temperatures ensure that the viscosity of the asphalt binder is low enough to effectively
2013-600451-00062-1 [TTI] ... SWUTC/13/600451-00062-1
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6.4 MB
Developing a Fundamental Understanding of the Chemistry of Warm Mix Additives. Training Materials
2012 ... By Amit Bhasin, Zelalam Arega · This document contains a group of slides used to present information about TxDOT Project 6591. · CONTENTS: Task 1. Review on state of the art and literature search -- Task 2. Selection of materials, WMA additives, and processes -- Task 3. Chemical and physio-chemical properties -- Task
6591-P2 [CTR] ... Product 0-6591-P2
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4.6 MB
Developing a Fundamental Understanding of the Chemistry of Warm Mix Additives
[2012] ... [Research Performed by: Center for Transportation Research; Research Supervisor: Amit Bhasin; Researcher: Zelalem Arega] · "Several independent research studies have made broad comparisons between the engineering properties and performance of WMA mixtures to conventional HMA mixtures. However, there has been
6591 Summary [CTR] ... PSR 0-6591-S ... Project Summary Report
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Recommendations and Guidelines for the Use of WMA Mixtures
2012 ... Zelalem Arega, Amit Bhasin · This document provides recommendations for warm-mix asphalt mixtures based on the results of tests conducted under TxDOT research project 0-6591. · CONTENTS: Chapter 1. Introduction and Background -- Chapter 2. Fatigue Cracking and Moisture Damage Resistance of Asphalt Mortars --
6591-P1 [CTR] ... Product 0-6591-P1
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147 KB
Binder Rheology and Performance in Warm Mix Asphalt
2012 ... Zelalem Arega, Amit Bhasin · Since the introduction of warm mix asphalt (WMA) in the United States, a variety of different technologies and processes have been developed and used to achieve proper mixing and compaction at reduced temperatures compared to conventional hot mix asphalt (HMA). A better understanding of
6591-1 [CTR] ... FHWA/TX-12/0-6591-1
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1.2 MB
Geomaterials 2012
2012 ... [various authors] · "This issue contains seven papers on the subject of geomaterials. Specific topics discussed include the following: the effect of aggregate size and shape on pavement performance; the effect of aggregate properties on concrete pavement behavior; and the influence of aggregate-asphalt binding on reclaimed
TRR 2267 ... TRR 2267 ... Transportation Research Record (TRR)
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Surface Treatment Binder Construction Toolkit
2012 ... Ambarish Banerjee [and six others] · This document contains description of the recommended test protocol for determining the dilution ratio of the plant emulsion at the construction site, recommended test protocol for determining the viscosity of the plant emulsion at the construction site using shell cups, and description of a
5893-P1 [TechMRT] ... Product 0-5893-P1
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2.2 MB
Binder Rheology and Performance in Warm Mix Asphalt. Interim Report
2012 ... Zelalem Arega and Amit Bhasin · Since the introduction of warm mix asphalt (WMA) in the United States, a variety of different technologies and processes have been developed and used to achieve proper mixing and compaction at reduced temperatures compared to conventional hot mix asphalt. A better understanding of the
6591-2 [CTR] ... FHWA/TX-12/0-6591-2
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2.8 MB
Fracture Properties and Fatigue Cracking Resistance of Asphalt Binders
2012 ... by Arash Motamed, Amit Bhasin, Anoosha Izadi · Several different types of modifiers are increasingly bring used to improve the performance of asphalt binders or to achieve desired mixture production characteristics (e.g., Warm Mix Asphalt). However, current Superpave performance specifications do not accurately reflect the
2012-161122-1 [CTR] ... 161122-1
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9.7 MB
Designing Fine Aggregate Mixtures to Evaluate Fatigue Crack-Growth in Asphalt Mixtures
2011 ... by Anoosha Izadi, Arash Motamed and Amit Bhasin · Fatigue cracking is a significant form of pavement distress in flexible pavements. The properties of the sand-asphalt mortars or fine aggregate matrix (FAM) can be used to characterize the evolution of fatigue crack growth and self-healing in asphalt mixtures. This study compares
2011-161022-1 [CTR] ... SWUTC/11/161022-1
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4 MB
Quantitative Characterization of Microstructure of Asphalt Mixtures
2010 ... Amit Bhasin, Swapneel Badgekar and Anoosha Izadi · The microstructure of the fine aggregate matrix has a significant influence on the mechanical properties and evolution of damage in an asphalt mixture. However, very little work has been done to define and quantitatively characterize the microstructure of the asphalt mastic
2010-476660-00070-1 [CTR] ... SWUTC-10/476660-00070-1
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5 MB
Laboratory Investigation of a Novel Method to Accelerate Healing in Asphalt Mixtures Using Thermal Treatment
2009 ... Amit Bhasin, Atul Narayan, and Dallas N. Little · Asphalt binders have an inherent ability to reverse damage in the form of micro-cracks that is caused due to the repeated action of external loads. This reversal occurs during rest periods between load cycles. The phenomenon of crack reversal is referred to as autogenous or
2009-476660-00005-1 [TTI] ... SWUTC/09/476660-00005-1
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Database of Measure Values
2009 ... Jonathan Howson [and four others] · · CONTENTS: Wilhelmy Plate Procedure Summary (PDF) -- Wilhelmy Plate Test Procedures (PDF) -- Wilhelmy Plate Procedure Full (PDF) -- Deliverables.zip (Guidelines For Transporting Wilhelmy Plate .doc, Contact Angles to SE .xls, Spreading Pressure to SE .xls, Surface Energy-
4524-01-P1 [TTI] ... Product 5-4524-01-P1
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673 KB
Development of a Database for Surface Energy of Aggregates and Asphalt Binders
2009 ... Jonathan Howson [and four others] · TxDOT project 0-4524 evaluated the influence of surface energy of aggregates and binders on the resistance of asphalt mixtures to moisture damage. The results from this research lead to the development of a three-tier approach to assess the moisture damage, resistance of asphalt mixtures.
4524-01-1 [TTI] ... 5-4524-01-1
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Bituminous Paving Mixtures
2007 ... [various authors] · · CONTENTS: Bulk Specific Gravity Measurements of 25.0-mm and 37.5-mm Coarse-Graded Superpave Mixs - Stacy G. Williams -- Development of New Moisture-Conditioning Procedure for Hot-Mix Asphalt - Bjorn Birgisson, Reynaldo Roque, Gale C. Page and Jianlin Wang -- Effect of Binder Type,
TRR 2001 ... TRR 2001 ... Transportation Research Record (TRR), 2001
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Bituminous and Nonbituminous Materials of Bituminous Paving Mixtures
2007 ... [various authors] · · CONTENTS: Comparative Laboratory Study of Sasobit and Aspha-Min Additives in Warm-Mix Asphalt - Nazimuddin M. Wasiuddin, Selvaratnam Selvamohan, Musharraf M. Zaman and Marie Louise Thérèse Anne Guegan; -- Comparison of Polyphosphoric Acid-Modified Asphalt Binders with Straight and Polymer-
TRR 1998 ... TRR 1998 ... Transportation Research Record (TRR), 1998
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Implementation Plan for Use of Surface Energy Measurements to Select Materials Resistant to Moisture Damage
2007 ... by Eyad Masad [and three others] · The main objective of the TxDOT 0-4524 study was to develop experimental methods to measure the adhesive and cohesive bonds in asphalt mixtures under dry and wet conditions as well as to develop protocols to quantify the resistance of asphalt mixtures and mastic to moisture
4524-P3 [TTI] ... Product 0-4524-P3
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20 MB
System for the Evaluation of Moisture Damage Using Fundamental Material Properties
2007 ... Jonathan Howson [and six others] · Moisture damage in asphalt mixtures can occur within the mastic (cohesive fracture) or at the aggregate-mastic interface (adhesive fracture or failure). Whether or not a cohesive or adhesive failure occurs depends on the nature of the mastic and the relative thickness of the mastic. This report is
4524-1 [TTI] ... FHWA/TX-07/0-4524-1
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Using Surface Energy Measurements to Select Materials For HMA Pavements
2007 ... [principal investigator, Dallas N. Little, and Amit Bhasin] · The surface energy of an aggregate particle determines its affinity for both inorganic and organic binders as well as for water. The surface energy of an asphalt binder affects its ability to adhere to an aggregate particle surface and, thus, the long-term strength and stability of
NCHRP RRD 316 ... NCHRP RRD 316 ... Research results digest (National Cooperative Highway Research
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Application of Surface Energy Measurements to Evaluate Moisture Susceptibility of Asphalt and Aggregates
2007 ... Robert Lytton [and six others] · Moisture damage in asphalt mixtures can occur within the asphalt mastic (cohesive fracture) or at the aggregate mastic interface (adhesive fracture or failure). Whether or not a cohesive or adhesive failure occurs depends on the nature of the mastic and the relative thickness of the mastic. The majority
4524 Summary [TTI] ... PSR 0-4524-S ... Project Summary Report, 0-4524
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Characterizing Surface Properties of Aggregates Used in Hot Mix Asphalt
2006 ... Amit Bhasin and Dallas N. Little · Physical and chemical properties of aggregates at the micro scale strongly impact the adhesive bond (strength and durability) between bitumen and aggregate. These properties include surface free energy, chemical interaction potential, and specific surface area. This report describes testing
... ICAR 505-2
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Bituminous Paving Mixtures 2006
2006 ... [various authors] · · CONTENTS: Limits on Adhesive Bond Energy for Improved Resistance of Hot-Mix Asphalt to Moisture Damage-- Amit Bhasin, Eyad Masad, Dallas Little, and Robert Lytton; -- Long-Term Effectiveness of Antistripping Additives: Laboratory Evaluation-- Qing Lu and John T. Harvey; -- Evaluation of
TRR 1970 ... TRR 1970 ... Transportation Research Record (TRR), 1970
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Geomaterials 2006
2006 ... [various authors] · "This Transportation Research Record contains 15 papers on the topic of geomaterials. The papers are organized in the following three parts: (1) aggregate testing and effect of aggregate properties on pavement performance; (2) rutting performance prediction of aggregate layers; and (3) cementitious,
TRR 1952 ... TRR 1952 ... Transportation Research Record (TRR), 1952
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Recommended Resolutions to Selected Hot Mix Asphalt Related Issues
2006 ... Joe W. Button, Arif Chowdhury, and Amit Bhasin · Approximately 94 percent of paved roads in Texas are asphalt pavements. Each year, rehabilitation of existing roads and construction of new roads require about 12 million tons of hot mix asphalt (HMA), which equates to approximately $500,000,000. Since 1970, some highways
4203 Summary [TTI] ... PSR 0-4203-S ... Project Summary Report, 0-4203
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2006 ... Arif Chowdhury, Joe W. Button, and Amit Bhasin · Previous laboratory and field research has demonstrated that virgin synthetic and cellulose fibers provide important attributes for hot mix asphalt (HMA): reduced asphalt (mastic) draindown during construction for certain types of mixtures, reinforcement which
2006-167453-1 [TTI] ... SWUTC/06/167453-1
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Evaluation of Simple Performance Tests on HMA Mixtures
2005 ... Amit Bhasin, Joe W. Button, and Arig Chowdhury · The Federal Highway Administration (FHWA) and the National Cooperative Highway Research Program (NCHRP) have sponsored or are sponsoring research projects that will lead to the development and validation of advanced materials characterization models and associated
558 Summary [TTI] ... PSR 558-S ... Project Summary Report, 9-558
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Evaluation of Selected Laboratory Procedures and Development of Databases for HMA
2005 ... by Amit Bhasin, Joe Button, and Arif Chowdhury · The objectives of this research project were to develop and validate laboratory test protocols for measuring rut-susceptibility of hot mix asphalt (HMA) mixtures; to identify the best available laboratory test protocol(s) for predicting moisture susceptibility of HMA paving mixtures;
4203-3 [TTI] ... FHWA/TX-05/0-4203-3; TTI 0-4203-3
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880 KB
Analysis of South Texas Aggregates for Use in Hot Mix Asphalt
2005 ... by Amit Bhasin [and three others] · The primary locally available aggregates in the South Texas districts for highway construction are siliceous river gravels, which typically exhibit a rounded shape. The warm South Texas climate combined with heavy truck traffic aggravates any rutting problems that may occur due to the use of low
4203-4 [TTI] ... FHWA/TX-05/0-4203-4
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690 KB
Design of TxDOT Asphalt Mixtures Using the Superpave Gyratory Compactor
2004 ... Joe W. Button, Arif Chowdhury, and Amit Bhasin · The primary objective of this project was to develop laboratory protocols for using the Superpave gyratory compactor (SGC) in place of the Texas gyratory compactor (TGC) to design essentially all of the Texas Department of Transportation (TxDOT) dense-graded hot mix asphalt
4203-1 [TTI] ... FHWA/TX-05/0-4203-1
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Bituminous Paving Mixtures 2004
2004 ... [various authors] · · CONTENTS: Evaluation of Use of Synthetic Lightweight Aggregate in Hot-Mix Asphalt -- Mallick, Rajib B.; Hooper, Frederick P.; O'Brien, Sean; Kashi, Mohsen. Aggregate Orientation and Segregation in Laboratory-Compacted Asphalt Samples -- Hunter, Alistair E.; Airey, Gordon D.; Collop, Andrew C..
TRR 1891 ... TRR 1891 ... Transportation Research Record (TRR), 1891
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Evaluation of Simple Performance Tests on HMA Mixtures from the South Central United States
2004 ... by Amit Bhasin, Joe W. Button, and Arif Chowdhury · A wide variety of hot mix asphalt (HMA) materials and mixture designs were obtained from the six states in the south central region of the United States. Three additional mixtures were designed and produced in the laboratory to provide modified mixtures in this project. All
558-1 [TTI] ... FHWA/TX-03/9-558-1
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As-built properties of test pavements on IH-20 in Atlanta District
2003 ... by Arif Chowdhury, Amit Bhasin, and Joe W. Button · The primary objectives of this research project were to measure as-built properties of nine test pavements and populate a database to be used in a future project for evaluating relationships between pavement performance and measured properties during construction. Texas
4203-2 [TTI] ... FHWA/TX-03/0-4203-2
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