A5021049916- Asphalt Pavement Performance Evaluation
- Infrastructure Maintenance and Monitoring
- Geotechnical Engineering and Underground Structures
- Transport Systems and Technology
- Innovative concrete reinforcement materials
- Smart Materials for Construction
- Textile materials and evaluations
- Dental materials and restorations
- Microbial Applications in Construction Materials
- Concrete and Cement Materials Research
- Innovations in Concrete and Construction Materials
- Material Properties and Processing
- Corrosion Behavior and Inhibition
- Stroke Rehabilitation and Recovery
- Transcranial Magnetic Stimulation Studies
- Recycled Aggregate Concrete Performance
- High-Velocity Impact and Material Behavior
- Tribology and Wear Analysis
- Materials Engineering and Processing
- Concrete Corrosion and Durability
- Grouting, Rheology, and Soil Mechanics
- Business and Management Studies
- Microstructure and Mechanical Properties of Steels
- Numerical methods in engineering
- Fatigue and fracture mechanics
North Carolina State University
2019-2024
ORCID
2020
Universidade Federal do Rio Grande do Sul
2018
During large earthquake events where bending moments within soil cements are induced, the tensile strength of cemented may govern deformational behavior improved ground. Several studies have been conducted to assess artificially sands that use Portland cement or gypsum; however, microbially induced carbonate precipitation (MICP)-treated with various particle sizes measured through direct tension tests has not evaluated. MICP is a biomediated improvement technique binds particles...
The use of reclaimed asphalt pavement (RAP) and recycled shingles (RAS) in mixtures is a routine process. Recycled binder availability reflects the proportion total given material (RAM) that available to blend with virgin binder. Studies show agglomerations adhered RAM particles preclude complete availability. However, Superpave volumetric mixture design methods adopted by majority state agencies assume This study makes sieve analysis method tracer-based microscopy quantify Revisions mix...
There is currently uncertainty in how to properly account for partial recycled binder availability within asphalt mixture design procedures so that content of materials (RAM) can be maximized while still achieving good performance. This study evaluates and compares two alternative approaches consider design: adjusted mix (AAMD) corrected optimum (COAC). The AAMD method revises the calculation volumetric properties by considering unavailable as part bulk aggregate volume uses RAM gradation...
This paper presents a predictive framework for asphalt mixture moduli as function of aging time with two levels sophistication. work is built on the method currently implemented in Pavement mechanistic-empirical (ME) that uses an effective time/frequency concept based time-aging superposition to model effect mixture’s modulus. Time-aging implies modulus mastercurves, corresponding different levels, coincide when they are shifted horizontally log-frequency axis. study improves accuracy...
A fadiga é caracterizada pela deterioração estrutural de um material quando submetido a repetidos esforços tensão-deformação. O ensaio laboratorial comumente empregado no Brasil para análise em misturas asfálticas o tração indireta (IDT). Como alternativa ao IDT, flexão quatro pontos (4PBBT) submete estado tensões mais realístico relação campo. Este trabalho avaliou comportamento à uma mistura asfáltica com ligante modificado por polímero (PG76-11) usando os ensaios IDT e 4PBBT. Um segmento...
Thermal cracking is the predominant failure mode for asphalt pavements constructed in regions with severe air temperature drops or significant daily variations. The thermal stress restrained specimen test (TSRST) one of a few tests that can simulate loading field. Conducting TSRSTs time-consuming task; therefore, predictive methodology needed predict fracture mixtures measured by TSRSTs. To this end, paper utilizes dissipated pseudo strain energy (DPSE), which be predicted using simplified...
Using recycled asphalt material (RAM) in mixtures is very common among transportation agencies. With the recent development of balanced mix design methods, it becoming more important to understand how optimize mixture performance by offsetting adverse effects RAM. In this paper, from three different sources were adjusted according availability (AAMD) and corrected optimum content (COAC) methods. Three control containing RAM, no five designed AAMD method (two which had 50% reclaimed pavement...
Recent efforts have been made to include mixture performance tests at the mix design stage using so-called “balanced” (BMD). This paper evaluates use of two mixtures that contain intermediate and high recycled asphalt pavement contents in context a BMD approach referred as balanced plus (BMD+). BMD+ utilizes dynamic modulus, cyclic fatigue, stress sweep rutting mechanistic models has three tiers based on amount testing required. As part approach, index–volumetrics relationships (IVRs)...
Abstract Thermal cracking is one of the most prevalent types distress found in asphalt concrete pavement sections. The coefficient thermal contraction (CTC) intrinsic parameter that determines mixtures subjected to temperature drop. Thus, stress and associated damage are greatly affected by CTC mixture. direct measurement a mixture’s reliable at same time cumbersome method for predicting asphaltic mixtures. In this study, Level I analysis, we measured CTCs have wide range properties reported...
The ‘dry’ method that can be used to produce modified asphalt mixtures is a less expensive, energy-consuming, and faster process than the well-established ‘wet’ method. Moreover, dry allows incorporation of hard plastics, even those plastics obtained from waste products. Although researchers agree improve stiffness rutting resistance (i.e., high-temperature performance) mixtures, they have conflicting opinions regarding mixture fatigue cracking resistance. In this regard, paper aims...