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A platform for research: civil engineering, architecture and urbanism
Magnetic powder modified asphaltic mastic and preparation method thereof
The invention discloses magnetic powder modified asphaltic mastic and a preparation method thereof. The magnetic powder modified asphaltic mastic is prepared from the components in percentage by mass:0.5%-85.0% of magnetic powder, 15.0%-30.0% of asphalt, 0.5%-85.0% of mineral powder and 0.0%-2.0% of a surfactant. The magnetic powder modified asphaltic mastic is mainly used for a buffer layer of asteel bridge deck asphalt pavement structure; magnetic powder is magnetized by adopting an external magnetic field of a magnetizer after the paving is finished; the comprehensive effects of powder modification, magnetic bonding and magnetic hardening of the magnetized magnetic powder are realized, and the strength and stiffness of the magnetized buffer layer are improved; and on the basis of physicochemical bonding of a traditional pavement structure, magnetic bonding between the buffer layer and the steel bridge deck is additionally increased, and the rigidity difference is reduced, so thatinterlayer bonding, deformation compliance and durability of the steel bridge deck pavement structure are enhanced. The magnetic powder modified asphaltic mastic can also be used for technologies of pavement stress absorption layers, anti-cracking layers and the like.
本发明公开了一种磁粉改性沥青砂胶及其制备方法。该磁粉改性沥青砂胶由磁粉、沥青、矿粉和表面活性剂按比例配制而成，其各组分质量分数为：磁粉0.5％～85.0％，沥青15.0％～30.0％，矿粉0.5％～85.0％，表面活性剂0.0％～2.0％。本发明的磁粉改性沥青砂胶主要用于钢桥面沥青铺装结构的缓冲层，铺装完成后采用充磁机外加磁场对磁粉进行充磁磁化，通过充磁后磁粉的粉体改性、磁力粘结和磁致硬化的综合作用，使得磁化缓冲层的强度和刚度提高，并在传统铺装结构的物化粘结基础上，额外增加缓冲层与钢桥面板之间的磁力粘结，降低刚度差异，从而增强钢桥面铺装结构的层间结合和变形追从性及耐久性。该磁粉改性沥青砂胶还可用于路面应力吸收层和防裂层等技术。
Magnetic powder modified asphaltic mastic and preparation method thereof
The invention discloses magnetic powder modified asphaltic mastic and a preparation method thereof. The magnetic powder modified asphaltic mastic is prepared from the components in percentage by mass:0.5%-85.0% of magnetic powder, 15.0%-30.0% of asphalt, 0.5%-85.0% of mineral powder and 0.0%-2.0% of a surfactant. The magnetic powder modified asphaltic mastic is mainly used for a buffer layer of asteel bridge deck asphalt pavement structure; magnetic powder is magnetized by adopting an external magnetic field of a magnetizer after the paving is finished; the comprehensive effects of powder modification, magnetic bonding and magnetic hardening of the magnetized magnetic powder are realized, and the strength and stiffness of the magnetized buffer layer are improved; and on the basis of physicochemical bonding of a traditional pavement structure, magnetic bonding between the buffer layer and the steel bridge deck is additionally increased, and the rigidity difference is reduced, so thatinterlayer bonding, deformation compliance and durability of the steel bridge deck pavement structure are enhanced. The magnetic powder modified asphaltic mastic can also be used for technologies of pavement stress absorption layers, anti-cracking layers and the like.
本发明公开了一种磁粉改性沥青砂胶及其制备方法。该磁粉改性沥青砂胶由磁粉、沥青、矿粉和表面活性剂按比例配制而成，其各组分质量分数为：磁粉0.5％～85.0％，沥青15.0％～30.0％，矿粉0.5％～85.0％，表面活性剂0.0％～2.0％。本发明的磁粉改性沥青砂胶主要用于钢桥面沥青铺装结构的缓冲层，铺装完成后采用充磁机外加磁场对磁粉进行充磁磁化，通过充磁后磁粉的粉体改性、磁力粘结和磁致硬化的综合作用，使得磁化缓冲层的强度和刚度提高，并在传统铺装结构的物化粘结基础上，额外增加缓冲层与钢桥面板之间的磁力粘结，降低刚度差异，从而增强钢桥面铺装结构的层间结合和变形追从性及耐久性。该磁粉改性沥青砂胶还可用于路面应力吸收层和防裂层等技术。
Magnetic powder modified asphaltic mastic and preparation method thereof
一种磁粉改性沥青砂胶及其制备方法
2020-11-06
Patent
Electronic Resource
Chinese
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