To develop the potential of solid particles to maintain storage stability salt- and ice-resistant emulsified asphalt, nano-SiO2 nano-CaCO3 without surface modification are mixed with asphalt different antifreeze content. Through 10d delamination rate 5d test, we studied influence two materials on salt-storage asphalt. The results show that settlement slows down increase content, first then acce...

High-content waste-rubber-modified asphalt (HRMA) has high viscosity and poor storage stability. HRMA not only improves the properties of road asphalt, but also reduces environmental pollution caused by waste tires. Enhancing molecular interaction rubber is key to making full use HRMA. In this paper, aromatic oil was used as activator for rubber. The mechanism between investigated. radial distr...

This paper presents a computational modeling study of the microstructural influence on damage behavior of asphalt materials. Computer generated asphalt samples were created for numerical simulation in indirect tension and compression testing geometries. Our previously developed micromechanical finite element model was used in the simulations. This model uses a special purpose finite element tha...

The ability to classify asphalt surfaces is an important goal for the selection of suitable non-variant targets as pseudo-invariant targets during the calibration/validation of remotely-sensed images. In addition, the possibility to recognize different types of asphalt surfaces on the images can help optimize road network management. This paper presents a multi-resolution study to improve aspha...

The use of recycled materials in pavement construction has seen, over the years, a significant increase closely associated with substantial economic and environmental benefits. During the past decades, many transportation agencies have evaluated the effect of adding Reclaimed Asphalt Pavement (RAP), and, more recently, Recycled Asphalt Shingles (RAS) on the performance of asphalt pavement, whil...

This paper aims to determine the Marshall properties of Asphalt Concrete-Wearing Course (AC-WC) and Hot Rolled Sheet-Wearing (HRS-WC) with utilization concrete waste also percentage added into AC-WC HRS-WC as substitute for coarse aggregates. During manufacture asphalt mixtures, aggregates, fine aggregates are required in large quantities. To reduce fresh mixtures road pavement, has become an a...

water stability of warm mix asphalt mixture based on foamed is the key evaluation index affecting its road performance. The moisture content in production process unfavorable to mixture. In order improve stability, through immersion Marshall test and freeze-thaw splitting test, taking foaming effect, temperature, consumption polymer fiber as influencing factors, control variable method used stu...

The Indirect Tension Test (IDT) is frequently used for evaluation of asphalt material viscoelastic creep properties. With the increased use of finer aggregate gradations and polymer modified asphalt binders in asphalt materials, crushing can occur under the narrow loading heads. The new specimen configuration proposed has a trimmed area under the loading heads, creating a “flattened-IDT.” This ...

A new composite membrane system, Geo-SealTM, has been developed that offers exceptional chemical resistance for use as a vapor barrier at brownfield sites. Data generated in controlled laboratory conditions indicate the composite membrane to have < 0.2X the volatile organic compound partitioning when compared to spray applied latex/asphalt vapor barriers. More importantly, data generated under ...

an experimental program was conducted to determine the effects of geosynthetic reinforcement on mitigating reflection cracking in asphalt overlays. the objectives of this study were to asses the effects of geosynthetics inclusion and its placement location on the accumulation of permanent deformation. to simulate an asphalt pavement overlaid on top of a crack in a concrete or asphalt pavement, ...