Surface Modification of Ultrafine Silica by Waste Engine Oil under Mechanochemical Action to Enhance the Dispersion in High-Viscosity Asphalt

Abstract

AbstractThe incompatibility of ultrafine inorganic micropowders with asphalt constrains the application of fine fillers in high viscosity asphalt. The aim of this paper is to efficiently adsorb waste engine oil (WEO) on the surface of microfine powders (...Oil-modified silica fume was prepared by an oil grinding process to promote the adsorption of waste engine oil on the surface of nano-micron silica fume. Meanwhile, the surface modification of silica fume improves its interfacial compatibility with ...