The basic oxygen furnace slag (BOF) was wide used in road construction, but there was a lack of characteristics in different asphalt mixtures. This study investigates the properties of hot-mixed asphalt (HMA) containing stone mastic asphalt (SMA), porous asphalt (PA) and dense-graded BOF as a partial substitution for natural aggregates. The purpose of this study is to evaluate various BOF slag ...

Abstract In this paper, different proportions of graphene modifiers were used to double-modify the SBS-modified asphalt. The needle penetration, softening point, and ductility modified asphalt with incorporation measured by national standard test method. As affected adding on three indexes SBS was studied. Through analysis comparison experimental results, when parameter is 0.5%, performance gra...

Ultraviolet radiation is the main cause of degradation in asphalt pavement. To improve performance pavement used strong ultraviolet (UV) region western plateau, China, this study explores effects adding nano-montmorillonite and carbon black to SBS-modified asphalt. Through conventional index detection, dynamic shear rheological tests, low-temperature bending creep UV aging high- performance, fa...

Biomass heavy oil is employed to partially substitute the petroleum-based asphalt due its renewability, environmentally friendly, and cost-effective advantages. However, usage weakens high-temperature performance of petroleum asphalt. Therefore, nano-ZnO was as a modifier make composite-modified improve in this paper. It prepared two steps: first, bio-asphalt by adding biomass based on certain ...

The conventional French fatigue test has yielded significantly different results for two asphalt materials with the same grade of pure asphalt. A research program was begun to study the influence of the asphalt nature on the fatigue behavior of asphalt materials. The program included full-scale experimentation on the circular test track of the Laboratoire Central des Ponts et Chaussees, laborat...

The application of waste coral fragments from natural weathering, harbor construction and channel excavation to infrastructure on offshore islands can help alleviate the problems shortage traditional materials, land use long-distances transport. In order promote comprehensive materials in road engineering islands, develop pavement with good service performances economic environmental benefits, ...