| 摘要 |
<p>The present invention provides compositions and manufacturing methods of a modified, RAP-recycled, temperature-controlled, asphalt mix. In detail, the 100 parts by weight of RAP having all gradations with particle sizes less than 53mm enters into the inlet of virgin aggregates in a mixer, and then after the 0.1-20 parts by weight of a recycling modifier and the 0.1-20 parts by weight of a temperature-controlling agent are added into the same mixer from the position of the virgin asphalt binder sprayer, these are mixed together to make a uniform mix for 0.5-3 minutes at a mixing temperature of 5-180°C. The resulting mix is use as a wearing course, a surface layer, an intermediate layer and a base layer of asphalt pavements. Here, a recycling modifier is to improve the physical properties, and a temperature-controlled agent takes a function of controlling production and construction temperatures for the RAP-recycled mix. Since this invention uses exclusively RAP aggregates without using virgin aggregates, the following benefits can be achieved; that is, savings of original material cost and waste disposal fee, prevention of destructing natures due to acquirement of aggregates, savings of virgin asphalt binders and aggregates, prevention of environmental pollution due to consumption of the RAP waste, prevention of early pavement rutting and fatigue cracking due to quality improvement achieved by a recycling modifier, economic gains of extending pavement life, usage of a surface course and a surface layer of recycled pavements for major roads, energy savings in production and less evolvement of greenhouse gases by using a temperature-controlling agent, etc. The present invention will contribute to enhancing the RAP-recycling technology broadly and create economic, social, and technological benefits.</p> |
