Rubber asphalt pavement crack repairing method applied to urban roads
A technology for rubber asphalt and pavement cracks, applied in the field of construction, can solve the problem of secondary cracking in road cracks, achieve the effect of reducing secondary damage and reliable connection
Pending Publication Date: 2021-07-23
ZHEJIANG SCI-TECH UNIV
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Problems solved by technology
[0004] The invention provides a rubber asphalt pavement crack repair method applied to urban roads that can make the repaired part less prone to secondary cracks, and solves the problem that secondary cracks are easily generated at the road cracks repaired by the existing crack repair method
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[0022] The following combination figure 1 with figure 2 , the present invention will be described in further detail.
[0023] A method for repairing cracks on rubber asphalt pavements applied to urban roads, the urban roads include a soil base 1, a semi-rigid layer 2 and a rubber filter surface 3 arranged in sequence from bottom to top.
[0024]The first step is to widen the crack 4 into a groove: the groove includes the upper section 5 and the lower section 6, the upper section is only located on the rubber filter surface, the width of the upper section is 19-21 cm, and the length of the upper section is 9-11 cm beyond the crack at both ends , the depth of the upper section is 4.8 to 6 cm, the length of the lower section extends from one end of the crack to the other end, that is, the same length as the crack, the width of the lower section is 2-4 cm, and the depth of the upper section is the same as the depth of the crack in the lower section. Steps are formed between the...
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Abstract
The invention relates to a rubber asphalt pavement crack repairing method applied to urban roads. The method comprises the following steps of 1, broadening a crack into a groove, 2, cleaning the groove, 3, conducting waterproof treatment and spraying a layer of SBS modified emulsified asphalt on the wall face of the groove, and 4, repairing: pouring rubber asphalt which is heated to 180 DEG C or above into the groove, uniformly spreading the cleaned and preheated stone particles on the rubber asphalt to form a crack repairing belt, and rolling the stone particles and the rubber filter. According to the rubber asphalt pavement crack repairing method applied to the urban road, secondary cracking is not likely to be generated at the repaired position, and the problem that secondary cracking is likely to be generated at the road crack at the repaired position through an existing crack repairing method is solved.
Description
technical field [0001] The invention relates to the technical field of construction, in particular to a method for repairing cracks on rubber asphalt pavement applied to urban roads. Background technique [0002] With the continuous and rapid development of my country's economic construction, the highway transportation industry has also ushered in the spring of development. Because the asphalt pavement has good flatness, comfortable driving, and low vibration, it has been vigorously promoted in the construction of high-grade highways. However, as the traffic pressure continues to increase, the problem of overloading and heavy loading becomes more and more serious. Coupled with the adverse effects of climatic conditions, the asphalt pavement has been damaged to varying degrees in the early days, and then in the long-term repair process, it is constantly being repaired and broken. Circulation, resulting in more and more serious damage to the pavement structure, and more and mo...
Claims
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IPC IPC(8): E01C7/18
CPCE01C7/187
Inventor 李志鹏张小元韩硕赵杨华吴义春陆瑶
Owner ZHEJIANG SCI-TECH UNIV