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Study on Highway Preventive Maintenances of Asphalt Pavement

Author: HengSiYe
Tutor: ZhangYiLuo
School: Chang'an University
Course: Traffic and Transportation Engineering
Keywords: Highway The asphalt pavement Preventive maintenance Gray markov model Maintenance decision
CLC: U418.6
Type: Master's thesis
Year: 2011
Downloads: 353
Quote: 4
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Abstract


In China highway construction has been developing rapidly, which has become the world’s second-biggest country belonging to the highway. Along with our country the extension of high grading highway system, we will soon have a batch of high grading highway enter the maintenance and curing period. The asphalt pavement highway in China has a large proportion. In recent years, the asphalt pavement because of all sorts of natural factors and heavy driving load, appeared early diseases such as the asphalt aging falling off, cracking, loosing Early damage of asphalt pavement affects the pavement driving quality and shortens the asphalt pavement using life. The asphalt pavement need maintenance, and the preventive maintenance can effectively resolve the above early damage, and the cost is rather low.This paper briefly introduces the type and characteristics of the asphalt pavement in early damage, and on the basis of the inducts and analyzes the current of different norms to the asphalt pavement traffic data collecting relevant provision, and recommends highway asphalt pavement traffic data collection should be adopted in the method, instrumentation, and collecting frequency, and through the part-spot investigation of highway in chongqing, we get this main diseases performance of the area highway asphalt pavement and analysis of main disease causes and mechanism.In this paper combining with highway asphalt pavement major disease types by the present investigation and according to existing asphalt pavement performance evaluation index system, we put forward the suitable for highway asphalt pavement performance of the new evaluation index system. Meanwhile, the paper proposes the weighted geometric average pavement performance comprehensive index of new evaluation model. And comparatively analysising of the domestic and international common asphalt pavement performance prediction model and the advantages and disadvantages, using the matter-element analysis method, establishes the highway asphalt pavement performance prediction of the matter-element model.Finally, through the domestic and international of some effective pavement preventive maintenance technology this paper makes a comprehensive analysis, and can make the maintenance units select the best preventive maintenance measures according to different conditions.

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CLC: > Transportation > Road transport > Road works > Road maintenance and repairs > Road maintenance and repair
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