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A platform for research: civil engineering, architecture and urbanism
Low-temperature anti-cracking lossless maintenance method for asphalt pavement
The invention discloses a low-temperature anti-cracking lossless maintenance method for an asphalt pavement, which belongs to the technical field of asphalt pavement maintenance and comprises the following steps: determining a heating interval L of the asphalt pavement according to a cracking index CI of the asphalt pavement; the heating width is determined according to the crack width of the asphalt pavement. According to the method, the principle that the asphalt mixture is prone to flow deformation under the medium-high temperature condition is utilized, the temperature stress accumulated on the asphalt pavement in the low-temperature environment is dissipated in a multiple-time and certain-length-interval heating mode, and low-temperature cracking resistance of the asphalt pavement is achieved. Lossless maintenance of the asphalt pavement is achieved in a heating mode, the appearance of the pavement is not affected, time and labor are saved, the purpose of low-temperature cracking prevention of the asphalt pavement can be achieved without additional materials, the service life of the pavement is greatly prolonged, and the maintenance cost of the pavement is reduced.
本发明公开了一种沥青路面低温防开裂无损养护方法，属于沥青路面养护技术领域，包括以下步骤：沥青路面加热间距L根据沥青路面的开裂指数CI来确定；加热宽度根据沥青路面的裂缝宽度来确定。本发明利用沥青混合料在中高温条件下较易发生流动变形的原理，采用多次且一定长度间距的加热方式消散处低温环境中沥青路面的所累积的温度应力，实现沥青路面抵抗低温开裂。本发明通过加热方式来实现沥青路面的无损养护，不会影响路面的外观，省时省力，无需外加材料即可实现沥青路面低温防开裂的目的，极大延长了道路的使用寿命且降低了其养护成本。
Low-temperature anti-cracking lossless maintenance method for asphalt pavement
The invention discloses a low-temperature anti-cracking lossless maintenance method for an asphalt pavement, which belongs to the technical field of asphalt pavement maintenance and comprises the following steps: determining a heating interval L of the asphalt pavement according to a cracking index CI of the asphalt pavement; the heating width is determined according to the crack width of the asphalt pavement. According to the method, the principle that the asphalt mixture is prone to flow deformation under the medium-high temperature condition is utilized, the temperature stress accumulated on the asphalt pavement in the low-temperature environment is dissipated in a multiple-time and certain-length-interval heating mode, and low-temperature cracking resistance of the asphalt pavement is achieved. Lossless maintenance of the asphalt pavement is achieved in a heating mode, the appearance of the pavement is not affected, time and labor are saved, the purpose of low-temperature cracking prevention of the asphalt pavement can be achieved without additional materials, the service life of the pavement is greatly prolonged, and the maintenance cost of the pavement is reduced.
本发明公开了一种沥青路面低温防开裂无损养护方法，属于沥青路面养护技术领域，包括以下步骤：沥青路面加热间距L根据沥青路面的开裂指数CI来确定；加热宽度根据沥青路面的裂缝宽度来确定。本发明利用沥青混合料在中高温条件下较易发生流动变形的原理，采用多次且一定长度间距的加热方式消散处低温环境中沥青路面的所累积的温度应力，实现沥青路面抵抗低温开裂。本发明通过加热方式来实现沥青路面的无损养护，不会影响路面的外观，省时省力，无需外加材料即可实现沥青路面低温防开裂的目的，极大延长了道路的使用寿命且降低了其养护成本。
Low-temperature anti-cracking lossless maintenance method for asphalt pavement
沥青路面低温防开裂无损养护方法
SUN ZHIQI (author) / LI JIZHONG (author) / LI SHAOHUA (author) / REN JIANYING (author) / YANG SHAOPU (author) / ZHANG ZHIQIANG (author) / WU XIANGLIN (author) / YANG ZHIHAO (author)
2024-04-16
Patent
Electronic Resource
Chinese
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