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A platform for research: civil engineering, architecture and urbanism
Preparation method and application of pavement sensing material based on conductive asphalt mixture
The invention belongs to the technical field of asphalt, and particularly relates to a preparation method and application of a pavement sensing material based on a conductive asphalt mixture. The preparation method comprises the following steps: carrying out MAX phase acid etching, preparing a few-layer MXene nanosheet and an aqueous solution thereof, treating the few-layer MXene nanosheet aqueous solution by adopting a freeze-drying mode to obtain few-layer MXene nanosheet powder and a solution thereof, adjusting the pH value, and preparing a few-layer MXene nano quantum dot solution by adopting a hydrothermal method; centrifuging at a high speed, and filtering the solution to obtain few layers of MXene nano quantum dots; the coarse and fine aggregates are pretreated, the proportion of each grade of coarse and fine aggregates and mineral powder is adjusted with the grading range as the target, and aggregates are obtained; mixing the few layers of MXene quantum dots with matrix asphalt to obtain a conductive asphalt cementing material; and mixing all grades of coarse and fine aggregates, adding the conductive asphalt cementing material, adding the mineral powder, and mixing to obtain a finished product. The defects of MXene quantum dots are overcome, and the conductivity and strain sensitivity of the composite material are improved.
本发明属于沥青技术领域，具体涉及一种基于导电沥青混合料路面传感材料的制备方法及其应用。MAX相酸刻蚀，制备少层MXene纳米片及其水溶液，采用冷冻干燥的方式处理少层MXene纳米片水溶液，得到少层MXene纳米片粉末及其溶液，调节PH值，采用水热法制备成少层MXene纳米量子点溶液；高速离心，溶液过滤得到少层MXene纳米量子点；将粗细集料预处理，各档粗细集料及矿粉以级配范围为目标调整比例，得到集料；将少层MXene量子点和基质沥青混合，得到导电沥青胶结料；将各档粗细集料拌和，加入导电沥青胶结料，加入矿粉拌和，得到成品。本发明解决MXene量子点的缺陷，改进复合材料导电性能和应变灵敏度。
Preparation method and application of pavement sensing material based on conductive asphalt mixture
The invention belongs to the technical field of asphalt, and particularly relates to a preparation method and application of a pavement sensing material based on a conductive asphalt mixture. The preparation method comprises the following steps: carrying out MAX phase acid etching, preparing a few-layer MXene nanosheet and an aqueous solution thereof, treating the few-layer MXene nanosheet aqueous solution by adopting a freeze-drying mode to obtain few-layer MXene nanosheet powder and a solution thereof, adjusting the pH value, and preparing a few-layer MXene nano quantum dot solution by adopting a hydrothermal method; centrifuging at a high speed, and filtering the solution to obtain few layers of MXene nano quantum dots; the coarse and fine aggregates are pretreated, the proportion of each grade of coarse and fine aggregates and mineral powder is adjusted with the grading range as the target, and aggregates are obtained; mixing the few layers of MXene quantum dots with matrix asphalt to obtain a conductive asphalt cementing material; and mixing all grades of coarse and fine aggregates, adding the conductive asphalt cementing material, adding the mineral powder, and mixing to obtain a finished product. The defects of MXene quantum dots are overcome, and the conductivity and strain sensitivity of the composite material are improved.
本发明属于沥青技术领域，具体涉及一种基于导电沥青混合料路面传感材料的制备方法及其应用。MAX相酸刻蚀，制备少层MXene纳米片及其水溶液，采用冷冻干燥的方式处理少层MXene纳米片水溶液，得到少层MXene纳米片粉末及其溶液，调节PH值，采用水热法制备成少层MXene纳米量子点溶液；高速离心，溶液过滤得到少层MXene纳米量子点；将粗细集料预处理，各档粗细集料及矿粉以级配范围为目标调整比例，得到集料；将少层MXene量子点和基质沥青混合，得到导电沥青胶结料；将各档粗细集料拌和，加入导电沥青胶结料，加入矿粉拌和，得到成品。本发明解决MXene量子点的缺陷，改进复合材料导电性能和应变灵敏度。
Preparation method and application of pavement sensing material based on conductive asphalt mixture
一种基于导电沥青混合料路面传感材料的制备方法及其应用
ZHOU QUAN (author) / MA TAO (author) / WANG TAOLI (author) / WANG FENGYI (author) / HU JIANYING (author) / CHEN YAN (author)
2024-09-24
Patent
Electronic Resource
Chinese
Self-sensing intelligent conductive asphalt pavement material
| European Patent Office | 2021
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