Application of a New Asphalt Pavement Maintenance Agent on Yuhe Road of Chongqing

2011 ◽  
Vol 280 ◽  
pp. 49-53
Author(s):  
Li Ping Qin ◽  
Wei Rong Huang
Keyword(s):  
Preventive Maintenance ◽  
Permeability Coefficient ◽  
Asphalt Pavement ◽  
Curing Agent ◽  
Pavement Maintenance ◽  
Maintenance System ◽  
Water Permeability Coefficient ◽  
Aged Asphalt ◽  
Before And After ◽  
New Type

In this paper, the abilities of recovery and regeneration for aged asphalt of a new type of asphalt pavement maintenance agent are studied. The agent is applied in the construction of test section of Yuhe Road, and the pavement performances before and after the construction are compared. The test indicates that after the maintenance agent is added into aged asphalt, the penetration and ductility are effectively improved, the softening point is lowered. When the penetration depth of agent reaches 6 mm，the texture depth , friction coefficient and antiskid value are improved to some extent ,the water permeability coefficient is reduced, and the appearance of pavement is improved as well，The paper provided reference for the applying curing agent of asphalt pavement to the preventive maintenance system.

Research on a New Method of Evaluating Compaction of Pavement

2013 ◽  
Vol 723 ◽  
pp. 171-176
Author(s):  
Fei Chen ◽  
Ming Chen
Keyword(s):  
Surface Temperature ◽  
Water Permeability ◽  
Permeability Coefficient ◽  
Asphalt Pavement ◽  
New Method ◽  
Water Permeability Coefficient ◽  
Infra Red ◽  
Set Up ◽  
Water Saturated ◽  
The Relationship

in this paper the surface temperature of test specimens which were water-saturated were measured after different exposure time in the lamplight. The relationship can be set up among surface temperature,air viods and water permeability coefficient. This research demonstrated that there is good correlation. So when the pavement is in the sunshine for a time after a rain,asphalt pavement areas with different water permeability coefficient can be distinguished by using infra-red technology to measure the surface temperature.Compaction of asphalt pavement can also be evaluated. This way was used and checked up in shanghai-chengdu highway project. This is a new method what is very convinently and quickly to evaluate the compaction and homogeneity of asphalt pavement.

scholarly journals Research on the application of epoxy surface in the pavement maintenance of the Yilaga Tunnel in Guizhou Province

2021 ◽  
Vol 300 ◽  
pp. 02014
Author(s):  
Miaomiao Tian ◽  
Xiangyan Wu ◽  
Xiangling Chen ◽  
Xingbing Xiong ◽  
Jianping Yang
Keyword(s):  
Traffic Accidents ◽  
Asphalt Pavement ◽  
Guizhou Province ◽  
Normal Operation ◽  
Skid Resistance ◽  
High Humidity ◽  
High Mountains ◽  
Pavement Maintenance ◽  
Before And After ◽  
Closed Environment

There are high mountains and steep roads in Guizhou Province. Affected by the relatively closed environment, high humidity and other factors, the skid resistance and durability of the highway in tunnels were obviously reduced, which affects the normal operation of the asphalt pavement. Based on the pavement maintenance project of the highway in the Yilaga Tunnel in Guizhou Province, a new kind of epoxy surface treatment maintenance technology for asphalt pavement has been introduced in this paper. Through the comparative analysis of friction coefficient, structural depth and other anti-sliding performance before and after construction, the results has shown that the technology can effectively solve the early diseases and significantly improve the anti-sliding performance of the pavement, and assist to reduce the occurrence of traffic accidents.

Evaluation and Life Extension of Asphalt Pavements Using Rejuvenators and Noncollinear Ultrasonic Wave Mixing: A Review

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Megan E. McGovern ◽  
William Buttlar ◽  
Henrique Reis
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
The State ◽  
Life Extension ◽  
Asphalt Pavements ◽  
Wave Mixing ◽  
Pavement Maintenance ◽  
Oxidative Aging ◽  
Before And After ◽  
Core Extraction

Except for the relatively small zones within pavements that are subjected to loadings, the primary challenge in asphalt concrete (AC) pavement design and maintenance is to prevent and/or control environmentally induced distresses. Distresses, including block and thermal cracking, and possibly raveling of construction joints, tend to accelerate with time; as a result, it is critical to evaluate the state of crack resistance in asphalt pavement surfaces before and after maintenance treatments. A review of the use of noncollinear wave mixing to evaluate oxidative aging of AC pavements, and the used of rejuvenators in oxidized pavements toward extension of pavement life, is presented. The approach requires no core extraction. Results show that the noncollinear wave mixing can evaluate the state of oxidative aging of AC pavements. Results also indicate that the use of rejuvenators is a successful strategy of pavement maintenance and sustainability.

The Application of Assets Evaluation in Analysis of Asphalt Pavement Maintenance Technology

2011 ◽  
Vol 97-98 ◽  
pp. 347-351
Author(s):  
Yao Ting Zhu ◽  
Mao Jin Lei
Keyword(s):  
Economic Efficiency ◽  
Preventive Maintenance ◽  
Asphalt Pavement ◽  
Pavement Performance ◽  
High Grade ◽  
Effective Technique ◽  
Pavement Maintenance ◽  
Value Evaluation ◽  
Asphalt Overlay ◽  
Maintenance Techniques

With the aggravation of high grade highway asphalt pavement destructions, it becomes particularly important to maintain pavement performance and enhance road economic efficiency. The asphalt pavement preventive maintenance technology is an effective technique to extend pavement services and maintain pavement performance. In this paper, we combine the decay model of pavement performance with assets value evaluation idea and establish an analytical method about preventive maintenance technology based on assets evaluation. An example of hot asphalt overlay is also presented, it is found that preventive maintenance techniques can reduce the attenuation of road infrastructure assets value and maintain pavement performance efficiently.

The Application Analysis of Micro-Surfacing in High Grade Highway Asphalt Pavement Preventive Maintenance

2012 ◽  
Vol 256-259 ◽  
pp. 1882-1886 ◽  
Author(s):  
Man Dula ◽  
Xiao Yu Hu
Keyword(s):  
Preventive Maintenance ◽  
Asphalt Pavement ◽  
High Grade ◽  
Technology Application ◽  
Pavement Maintenance ◽  
Application Analysis

In domestic asphalt pavement micro-surfacing technology is a new kind of pavement maintenance technology. Starting with the micro-surfacing technology application effect, we analyzed the micro-surfacing technology characteristics and application conditions. We also analyzed and discussed the application prospect, strive to provide a technical reference for promotion and application of micro surfacing technology.

scholarly journals Impact of Biochar on Soil Water Permeability Coefficient During 2 Year Field Experiment

2020 ◽  
Vol 609 ◽  
pp. 012108
Author(s):  
Maciej Gliniak ◽  
Jakub Sikora ◽  
Urszula Sadowska ◽  
Agnieszka Klimek-Kopyra ◽  
Agnieszka Latawiec ◽  
...  
Keyword(s):  
Field Experiment ◽  
Soil Water ◽  
Water Permeability ◽  
Permeability Coefficient ◽  
Water Permeability Coefficient
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