Analysis of RAP Dispersion Characteristics Based on Fractal Theory
In order to solve the problem of mixing temperature,heating temperature and other factors in the production process of thermal regeneration mixture,the RAP material dispersion changing the mixture gradation problem,this paper adopts the method of fractal theory to analyze the influence law of dispersion characteristics of RAP heating temperature and mixing temperature on each RAP,evaluates the dispersion degree and change law of each grade of RAP under different mixing temperature and heating temperature. The results show that:①In the process of thermal regeneration,the presence of RAP with particle clusters will cause the overall gradation curve of the mixture to move downwards,especially the content of fine and medium-sized particles is greatly reduced compared to the design value,leading to increased porosity,water stability,and durability of the thermally recycled mixture;②RAP dispersion is related to particle size specifications and production temperature;③RAP synthetic gradation fractal dimensions are distributed in RAP gradation and fractal dimension of the material grading.
factory mixed hot recycling technologyheating temperaturefractal theoryRAP materialmaterial characteristics
万方数据
维普
