Abstract
Although there is a technology for producing warm-mix asphalt mixtures, which reduces environmental load, the quality of asphalt pavement has not yet been established. We investigate the warm-mix material, which forms fine foam in the asphalt by adding zeolite to the asphalt, by focusing on the crystalline void and ion-exchange capacity among chemical and physical characteristics of zeolite. In this study, research and development were carried out on an add-in warm-mix material whose major component was an artificial zeolite that can be produced by converting the paper sludge ash discharged from the paper manufacturing industry. A laboratory experiment and a manufacturing experiment at the plant were performed on the technology for producing warm-mix-asphalt mixtures by the prototype addin warm-mix material. It is confirmed to be able to construct asphalt pavement by adding the warm-mix-asphalt mixture developed in this study under the condition of decreasing at 30°C more than a usual mixing temperature.
