A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Waste asphalt regeneration method
The invention discloses a waste asphalt regeneration method, belongs to the technical field of road engineering, and aims to solve the technical problems of how to realize rapid recovery of aged asphalt in a waste asphalt pavement material and how to accurately determine the doping proportion of a regenerant. Preliminarily determining the asphalt-aggregate ratio in each grade of waste asphalt pavement material; preparing the RAP compound material, and ensuring that the asphalt-aggregate ratio of the waste asphalt in the RAP compound material to the aggregate in the RAP compound material is not less than 5.0; preparing an experimental group mixture; preparing a contrast group mixture; determining the ratio of the optimal regenerant doping mass to the old asphalt mass, wherein the formula is as follows: Doptimal = (Dporosity + Dsplitting + Dlow temperature)/3; wherein D < optimal > represents the ratio of the adding mass of the optimal regenerant to the mass of the old asphalt; d porosity represents the porosity of the experimental group test piece prepared from the experimental group mixture and the porosity of the contrast group test piece prepared from the contrast group mixture.
本发明公开了一种废旧沥青再生方法，属于道路工程技术领域，本发明要解决的技术问题为如何实现对废旧沥青路面材料中老化沥青快速恢复，并能精准的确定出再生剂的掺加比例，采用的技术方案为：选定废旧沥青路面材料，并初步确定各档废旧沥青路面材料中的沥青油石比；配制RAP复配材料，保证RAP复配材料中的废旧沥青与RAP复配材料中的骨料的油石比不小于5.0；配制实验组混合料；配制对比组混合料；确定最佳再生剂掺加质量与旧沥青的质量比，公式如下：D最佳＝(D孔隙率+D劈裂+D低温)/3；其中，D最佳表示佳再生剂掺加质量与旧沥青的质量比；D孔隙率表示将实验组混合料制备的实验组试件的孔隙率与对比组混合料制备的对比组试件的孔隙率。
Waste asphalt regeneration method
The invention discloses a waste asphalt regeneration method, belongs to the technical field of road engineering, and aims to solve the technical problems of how to realize rapid recovery of aged asphalt in a waste asphalt pavement material and how to accurately determine the doping proportion of a regenerant. Preliminarily determining the asphalt-aggregate ratio in each grade of waste asphalt pavement material; preparing the RAP compound material, and ensuring that the asphalt-aggregate ratio of the waste asphalt in the RAP compound material to the aggregate in the RAP compound material is not less than 5.0; preparing an experimental group mixture; preparing a contrast group mixture; determining the ratio of the optimal regenerant doping mass to the old asphalt mass, wherein the formula is as follows: Doptimal = (Dporosity + Dsplitting + Dlow temperature)/3; wherein D < optimal > represents the ratio of the adding mass of the optimal regenerant to the mass of the old asphalt; d porosity represents the porosity of the experimental group test piece prepared from the experimental group mixture and the porosity of the contrast group test piece prepared from the contrast group mixture.
本发明公开了一种废旧沥青再生方法，属于道路工程技术领域，本发明要解决的技术问题为如何实现对废旧沥青路面材料中老化沥青快速恢复，并能精准的确定出再生剂的掺加比例，采用的技术方案为：选定废旧沥青路面材料，并初步确定各档废旧沥青路面材料中的沥青油石比；配制RAP复配材料，保证RAP复配材料中的废旧沥青与RAP复配材料中的骨料的油石比不小于5.0；配制实验组混合料；配制对比组混合料；确定最佳再生剂掺加质量与旧沥青的质量比，公式如下：D最佳＝(D孔隙率+D劈裂+D低温)/3；其中，D最佳表示佳再生剂掺加质量与旧沥青的质量比；D孔隙率表示将实验组混合料制备的实验组试件的孔隙率与对比组混合料制备的对比组试件的孔隙率。
Waste asphalt regeneration method
一种废旧沥青再生方法
DONG ZHAO (author) / TIAN JUN (author) / MA SHIJIE (author) / DUAN MEIDONG (author) / LIU JIUWEI (author) / ZHU ZHENXIANG (author) / XU SHUDONG (author) / LIANG MEIJUN (author) / WEI JINCHENG (author) / XU SISI (author)
2024-03-22
Patent
Electronic Resource
Chinese