A5024871623- Asphalt Pavement Performance Evaluation
- Infrastructure Maintenance and Monitoring
- Innovative concrete reinforcement materials
- Transport Systems and Technology
- Geotechnical Engineering and Underground Structures
- Natural Fiber Reinforced Composites
- Recycled Aggregate Concrete Performance
- Smart Materials for Construction
- Concrete and Cement Materials Research
- Structural Behavior of Reinforced Concrete
- Polymer Nanocomposites and Properties
- Geotechnical Engineering and Soil Stabilization
- Recycling and Waste Management Techniques
- Geophysical Methods and Applications
- Innovations in Concrete and Construction Materials
- Environmental Impact and Sustainability
- Material Properties and Processing
- Textile materials and evaluations
- Lignin and Wood Chemistry
- Geotechnical and construction materials studies
- Wood Treatment and Properties
- NMR spectroscopy and applications
- Geotechnical Engineering and Analysis
- Structural Engineering and Vibration Analysis
- Geotechnical Engineering and Soil Mechanics
Universidade de São Paulo
2016-2025
Universidade Politecnica
2012-2023
Universidade Cidade de São Paulo
2019-2022
Instituto Butantan
2022
Hospital Universitário da Universidade de São Paulo
2021
Texas A&M University
2007-2010
The University of Texas at Austin
2010
Texas Department of Transportation
2007-2008
Mitchell Institute
2008
The wide production of construction and demolition waste its illegal deposition are serious current problems in Brazil. This research proposes to evaluate the feasibility using aggregate from recycled (RCDW) pavement applications. A laboratory program was conducted by geotechnical characterization, bearing capacity repeated load triaxial tests. results show that composition compactive effort influence on physical characteristics RCDW aggregate. compaction process has promoted a partial...
Conventional methods to quantify the moisture sensitivity of asphalt mixtures are based on comparison mechanical properties mix before and after a moisture-conditioning process. Although this approach consolidates effect material mixture sensitivity, it does not identify causes responsible for poor or good performance mixture. In study, surface free energy binders aggregates was used derive parameters that various combinations materials. The 12 carefully designed represent wide range...
ABSTRACT Significant evidence exists in the literature that healing has a substantial effect on performance of asphalt mixtures and therefore pavements. The incorporation mechanism tandem with crack growth is necessary for comprehensive modeling fatigue or fracture processes mixtures. This paper presents new framework combines material mechanical properties bitumen to predict mixture. based an analytical approach will allow it be incorporated future models damage. also test method using...
It is common practice to assume full blending of the aged binder reclaimed asphalt (RA) within design new mixtures. Although being practical, this assumption has often led designers mixtures lacking binder. Hence, going towards recycled (RAM) there a need have better understanding phenomena, general agreement on terminology and finally adapting RA classification mix procedures accordingly. This manuscript aims at both reference stimulus for scientific community work in direction basis...
Significant volumes of waste materials such as plastics is generated every year worldwide with a potentially harmful impact on the environment. At same time, demand for asphalt modifiers has seen an increase over consequent higher costs these types additives. Therefore, combining large amounts available binder extender or modifier would improve paving material properties while limiting disposed waste. While several rheological studies have been performed in past, they were restricted to...
Abstract This recommendation is based on the results of an inter-laboratory study organised by RILEM technical committee TC 264-RAP "Asphalt Pavement Recycling"—Task Group 3 (TG3) focusing Asphalt Binder for Recycled Mixture. The TG3 aimed to evaluate effect a specific family materials known as asphalt recycling agent (ARA) aged binder under different configurations. Even though ageing irreversible phenomenon, effective ARA must have capability improve flexibility bituminous and their...
ABSTRACT Significant evidence exists in the literature that healing has a substantial effect on performance of asphalt mixtures and therefore pavements. The incorporation mechanism tandem with crack growth is necessary for comprehensive modeling fatigue or fracture processes mixtures. This paper presents new framework combines material mechanical properties bitumen to predict mixture. based an analytical approach will allow it be incorporated future models damage. also test method using...
Cold recycling with foamed asphalt stabilisation has been gaining acceptance and growing steadily. This study evaluates the performance of cold recycled mixes stabilised asphalt, respect to effects confining stresses, material moisture content. An experimental test section a used as base course was monitored through quality control assurance falling weight deflectometer (FWD) tests. In laboratory, indirect tensile strength, triaxial resilient modulus, permanent deformation tests were...
This research aims to determine if the observed improvements using polyethylene (PE) waste in asphalt binder translate into better performance at mixture scale laboratory environment while overcoming stability and homogeneity issues experienced level. is accomplished through a round-robin multinational experimental program covering four continents, with active participation of eleven laboratories within RILEM TC 279-WMR. PE modified AC16 mixtures were prepared employing dry process local...
Cold recycled asphalt mixtures (CRAMs) are generally comprised by reclaimed pavement, virgin aggregates, bitumen stabilising agents (asphalt emulsion or foamed asphalt) and active filler (Portland cement hydrated lime). Depending on the type content of each mixture constituent, CRAM may exhibit different mechanical behaviours. The aim this study is to evaluate influence composition behaviour CRAMs. materials used were collected during construction an experimental test section as base course...
Inter-laboratory experiments were designed to evaluate the impact of plastic waste blended directly in bitumen and assess properties, using conventional advanced bituminous binder testing.The blends targeted 5% 95% bitumen, two types polyethylene (PE) primary (pellets) secondary (shreds) waste.The showed that addition PE does not alter chemistry blending is physical.The DSR results indicate a strong dependency on testing temperature as at low temperatures composite material behave both...
Abstract Despite the importance of hysteresis water diffusion in polymeric materials, only limited literature is available on this subject. The FT-IR-ATR spectroscopy technique was used to investigate effect cycling moisture boundary conditions diffusivity three asphalt binders. Each sample passed through hydration cycles and two dehydration cycles. existence binders validated. increase primarily attributed change microstructure binder after being exposed moisture. This supported by atomic...
Recycling techniques are important tools for rehabilitation of old and deteriorated asphalt pavements. The production cold recycled mixes using reclaimed pavement as aggregates provides economic benefits it decreases transportation costs, energy consumption, gas emissions. Despite that, there is no internationally accepted methodology to design this type mix. present research evaluated the through different compaction methods varying emulsion cement contents. Different curing temperatures...
The prediction of asphalt pavements performance in relation to the main distresses has been proposed by different researchers, means laboratory characterisation and field evaluation. With respect fatigue, there are approaches determine what failure criterion be considered, testing conditions used which specimens' geometry produced. Tests performed binders mixtures have recommended characterise fatigue resistance, correlations among several scales order make it more practical precise predict...
AbstractThis study characterised two bio-binders (named Bio A and B) derived from pine wood resins designed for full replacement of asphalt binder. B were compared to a petroleum-based binder (AC 30/45). Elemental analysis, Fourier-Transform Infrared Spectroscopy, Gas Chromatography-Mass Spectrometry, Thermogravimetric Linear Viscoelastic characterisation applied evaluate the materials studied. The susceptibility aging was evaluated by comparing unaged short-term aged samples three binders....
The water diffusion attributable to concentration gradients is among the main mechanisms of transport into asphalt mixture. small molecules through polymeric materials a very complex process, and no single model provides complete explanation because molecule's internal structure. objective this study was experimentally determine in different fine aggregate mixtures (FAM) using simple gravimetric sorption measurements. For purposes measuring diffusivity water, FAMs were regarded as...
The traffic of overloaded trucks is a critical problem in highways. It affects pavement performance life, reduces the service life bridges, and has negative impact on road safety, average speed level service. There are several practices to prevent truck overloading issue, i.e., enforcement activities verify truck's compliance with legal weight limits. This paper investigates development method that uses available weigh-in-motion (WIM) data identify travel patterns. proposed approach based...
Pavement marking retroreflectivity, a critical factor for safe driving, depends on the characteristics of both paint and embedded glass beads. However, traditional methods predicting pavement service life often overlook these materials properties. This study investigates influence bead retroreflectivity performance addresses characterization size distribution by coefficient uniformity curvature. Three field test sites Brazilian highway with various combinations were evaluated. A statistical...
Abstract This article addresses gender issues in the context of professor’s productivity grants (PQ) distribution applied to Civil Engineering. It contributes with reflections on advancement knowledge and equality through inclusion integrity holistic aspects. A quantitative descriptive data analysis public documents revealed that number women civil engineers is considerable, female professors engaged postgraduate are capable competing for scholarships. Nevertheless, less than 20% PQ...