How to select the standard blending amount of on-site heated recycled asphalt mixture

摘要

The method for selecting a standard blending amount of the on-site heated recycled asphalt mixture according to the present invention comprises: a material collection step of classifying and collecting the waste asphalt pavement material; Classifying the recovered asphalt mixture into surface and base layers, and examining the asphalt content according to the thickness of the surface and base layers; After the aggregate is extracted from the recovered asphalt mixture to determine the particle size of the extracted aggregate through a sifting test, the optimum aggregate synthesis to determine the particle size and use ratio of the new aggregate to be added to meet the standard (BB-2) A particle size determining step; After calculating the asphalt content by adding the new aggregate to the recovered asphalt mixture, in consideration of the amount of the asphalt burned, the asphalt emulsion addition amount determining step to determine the addition amount of the asphalt emulsion to meet the standard; Extracting the asphalt from the recovered asphalt mixture and analyzing the aging characteristics of the used asphalt, and determining the addition amount of the regenerative additive to determine the amount of the regenerative additive to have a viscosity and penetration in accordance with the standard; The data obtained through the above steps are classified by aging year and divided into a plurality of layers, and the compounding standardization step specified in the compounding standard table according to the asphalt content of each layer is used to systematically process the packaging materials recycled without any quality control measures. Not only can this be confirmed, but the standardized simple compounding standard table is presented to improve the quality and reliability of recycled asphalt material.