A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Activated recycled powder, preparation method thereof and asphalt mixture containing activated recycled powder
The invention relates to the technical field of road engineering materials, in particular to activated recycled powder, a preparation method thereof and an asphalt mixture containing the activated recycled powder. The activated recycled powder is prepared from the following raw materials: recycled powder, an additive and an activating agent aqueous solution; the mass ratio of the recycled powder to the additive is (7-8): (2-3), and the ratio of the total mass of the recycled powder and the additive to the mass of the activating agent aqueous solution is 1: (5-10); the additive contains transitional metal elements; the activating agent aqueous solution is an alkali metal hydroxide aqueous solution and/or a silane coupling agent aqueous solution. The physical mode and the chemical mode are compounded so that the adsorption effect between the recycled powder and asphalt can be effectively improved, the activity of the recycled powder is improved, the adsorption capacity between asphalt mortar and aggregate is enhanced, the performance of the asphalt mixture is improved, and the defects of low-temperature performance, fatigue performance and water stability of the asphalt mixture caused by the use of the recycled powder are overcome.
本申请涉及道路工程材料技术领域，具体涉及活化回收粉及其制备方法和含活化回收粉的沥青混合料。所述活化回收粉的制备原料包括如下组分：回收粉、添加剂和活化剂水溶液；所述回收粉和添加剂的质量比为（7‑8）：（2‑3），所述回收粉和添加剂的总质量与活化剂水溶液的质量之比为1：（5‑10）；所述添加剂含有过渡性金属元素；所述活化剂水溶液为碱金属氢氧化物水溶液和/或硅烷偶联剂水溶液。使用物理和化学两种方式复合，能有效提高回收粉与沥青之间吸附作用，提高回收粉活性，增强沥青胶浆与集料之间的吸附能力，提高沥青混合料性能，改善了使用回收粉导致沥青混合料低温性能、疲劳性能和水稳定性的缺陷。
Activated recycled powder, preparation method thereof and asphalt mixture containing activated recycled powder
The invention relates to the technical field of road engineering materials, in particular to activated recycled powder, a preparation method thereof and an asphalt mixture containing the activated recycled powder. The activated recycled powder is prepared from the following raw materials: recycled powder, an additive and an activating agent aqueous solution; the mass ratio of the recycled powder to the additive is (7-8): (2-3), and the ratio of the total mass of the recycled powder and the additive to the mass of the activating agent aqueous solution is 1: (5-10); the additive contains transitional metal elements; the activating agent aqueous solution is an alkali metal hydroxide aqueous solution and/or a silane coupling agent aqueous solution. The physical mode and the chemical mode are compounded so that the adsorption effect between the recycled powder and asphalt can be effectively improved, the activity of the recycled powder is improved, the adsorption capacity between asphalt mortar and aggregate is enhanced, the performance of the asphalt mixture is improved, and the defects of low-temperature performance, fatigue performance and water stability of the asphalt mixture caused by the use of the recycled powder are overcome.
本申请涉及道路工程材料技术领域，具体涉及活化回收粉及其制备方法和含活化回收粉的沥青混合料。所述活化回收粉的制备原料包括如下组分：回收粉、添加剂和活化剂水溶液；所述回收粉和添加剂的质量比为（7‑8）：（2‑3），所述回收粉和添加剂的总质量与活化剂水溶液的质量之比为1：（5‑10）；所述添加剂含有过渡性金属元素；所述活化剂水溶液为碱金属氢氧化物水溶液和/或硅烷偶联剂水溶液。使用物理和化学两种方式复合，能有效提高回收粉与沥青之间吸附作用，提高回收粉活性，增强沥青胶浆与集料之间的吸附能力，提高沥青混合料性能，改善了使用回收粉导致沥青混合料低温性能、疲劳性能和水稳定性的缺陷。
Activated recycled powder, preparation method thereof and asphalt mixture containing activated recycled powder
活化回收粉及其制备方法和含活化回收粉的沥青混合料
WANG YIMIN (author) / ZHAO JING (author) / AN YUNING (author) / LI YANJIE (author) / LIU XUHANG (author) / LI FENG (author)
2021-07-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
Stone powder recycled asphalt mastic and preparation method thereof
| European Patent Office | 2020
| European Patent Office | 2021
RECYCLED ASPHALT MIXTURE MANUFACTURING METHOD AND RECYCLED ASPHALT MIXTURE
| European Patent Office | 2020