scholarly journals Decision of National and Provincial Highway Asphalt Pavement Structure Based on Value Engineering

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Yingwei Ren ◽  
Jingsong Shan
Keyword(s):  
Evaluation Method ◽  
Asphalt Pavement ◽  
Value Engineering ◽  
Pavement Performance ◽  
Road Maintenance ◽  
Good Reliability ◽  
Financial Investment ◽  
The Road ◽  
Engineering Theory ◽  
Pavement Structure

It is important that decision of asphalt pavement structure requires overall considerations of the performance and financial investment. To have asphalt pavement structure fulfilling good reliability, the asphalt pavement structure decision was researched based on value engineering theory. According to the national and provincial highway investigation data in Shandong Province during the last decade, the asphalt pavement performance attenuation rules of traffic levels and asphalt layer thicknesses were developed, and then the road performance evaluation method was presented. In addition, the initial investments, the costs of road maintenance, and middle-scale repair in a period were analyzed. For the light traffic and medium traffic example, using the value engineering method, the pavement performance and costs of which thickness varies from 6 cm to 10 cm were calculated and compared. It was concluded that value engineering was an effective method in deciding the asphalt pavement structure.

The Tension Fracture Simulation on the Asphalt Pavement with the Insufficient Compaction Roadbed

2011 ◽  
Vol 243-249 ◽  
pp. 3868-3872
Author(s):  
Lai Gui Wang ◽  
Mei Sheng Feng ◽  
Hong Zhu Zhang
Keyword(s):  
Tensile Stress ◽  
Asphalt Pavement ◽  
Crack Model ◽  
Tension Stress ◽  
Wheel Load ◽  
Tension Crack ◽  
Discontinuous Surface ◽  
The Road ◽  
Fracture Simulation ◽  
Pavement Structure

For the study of soft subgrade pavement cracking process, it establishes the pavement structure tension crack model by elastic layered theory. Based on the finite element method, it studies the tension crack evolution process. It establishes the tension crack stress criterion to the roadbed. Analysis shows that the distresses of asphalt pavement of the real highway results from the damage by asymmetric sedimentation which is under excessively axle loading on pavement structure, rather than the fatigue damage by axle loading repetitions in the condition of asymmetric intensity in the same layer. The results show that the soft degree of the subgrade is proportional to the tensile stress, the more localized soft, the easier to crack the road. The soft roadbed does not have a homogeneous structure of the road surface, the tension stress rupture occurred in the discontinuous surface. The road structure has a set of tensile stress under the circulation wheel load, it formats a new fracture surface, and the structure form corresponding evolves, and causes stress state change. At last most of the road sub-base crack, and surface cracking occurres, so the pavement failure.

The Study on Road Performance and Pavement Structure Analysis for the Base Layer Material Stabilized by SRX

2012 ◽  
Vol 594-597 ◽  
pp. 1402-1406 ◽  
Author(s):  
Yue Zhang ◽  
Yun Long Zhao ◽  
Bao Yang Yu
Keyword(s):  
Resilient Modulus ◽  
Asphalt Pavement ◽  
Base Material ◽  
Base Layer ◽  
Rigid Base ◽  
The Road ◽  
Flexible Material ◽  
Calculation Results ◽  
Road Performance ◽  
Pavement Structure

In order to overcome the weakness of semi-rigidity base layer，the road performance of the SRX(Solution Road RomixSoilfix) stabilized base material and the mechanics response of asphalt pavement with the base layer stabilized by SRX have been studied in this paper. The CBR value and resilient modulus of SRX stabilized base material were given by indoor test. Based on the multiple layer elastic theory, both the mechanical responses of asphalt pavement structure with the SRX stabilized base and semi-rigid base were given, and according to the calculation results, the two kinds of pavement structure fatigue life were analyzed. The results have shown that the CBR value of SRX flexible material is greater than that of graded crushed stone; the SRX stable material can be used as pavement base layer, but the fatigue performance of SRX flexible base materials should be paid much attention.

Application of Fiberglass-Polyester Paving Mat in Engineering

2012 ◽  
Vol 488-489 ◽  
pp. 485-489 ◽  
Author(s):  
Chao Jue Yi ◽  
Peng Cheng Zhai
Keyword(s):  
Asphalt Pavement ◽  
Engineering Application ◽  
High Strength ◽  
Water Infiltration ◽  
Pavement Performance ◽  
Synthetic Material ◽  
Forming Mechanism ◽  
The Road ◽  
Pavement Construction ◽  
Reflection Crack

Fiberglass-Polyester Paving Mat is a new compound synthetic material, and a compound of fiberglass and polyester, which advantages include high strength, low elongation, good compatibility with bitumen, resistance of high temperature and corrosiveness. This paper mainly elaborated the performance of Fiberglass-Polyester Paving Mat, such as delaying cracking, alleviating the crack development, which can effectively prevent the road surface water infiltration and improve the pavement performance in asphalt pavement construction and transformation. Based on the forming mechanism of reflective cracks, this article describes the engineering application of fiberglass-polyester paving mat in the prevention of reflection crack of bituminous pavement and in waterproofing of the paving layer in tunnels, thus providing the basis for the application of Fiberglass-Polyester Paving Mat in highway construction and maintenance engineering.

Mechanical Response Analysis of Heavy Traffic on Semi-Rigid Base Pavement Performance

2011 ◽  
Vol 97-98 ◽  
pp. 146-150 ◽  
Author(s):  
Chun Feng Yang ◽  
Hui Ran Pi ◽  
Tian Xiao ◽  
Can Zhang Jin
Keyword(s):  
Mechanical Response ◽  
Asphalt Pavement ◽  
Heavy Traffic ◽  
Pavement Performance ◽  
Rigid Base ◽  
Response Analysis ◽  
Structure Form ◽  
Pavement Structure ◽  
Response Variation ◽  
The Impact

Viewing so many overload vehicles, this paper analyzes the stress distribution of asphalt pavement structure under heavy traffic theoretically, according to the main asphalt pavement structure form in our country. By using elastic layer theory and BISAR3.0 program, analyzed the mechanical response variation of semi-rigid base asphalt pavement under different axle loads. The results showed that the mechanical response and the stress indexes of pavement structure under heavy traffic changed significantly. Therefore, in asphalt pavement design, the impact of heavy traffic should be fully considered and we must take measures to control the overload situation.

Decision-Making Method of Maintenance Scheme for Highway Asphalt Pavement

2013 ◽  
Vol 405-408 ◽  
pp. 1820-1823 ◽  
Author(s):  
Shun Ping Gao ◽  
Pei Guan Wu ◽  
Jian Feng
Keyword(s):  
Decision Making ◽  
Influencing Factors ◽  
Asphalt Pavement ◽  
Traffic Volume ◽  
Evaluation Index ◽  
Pavement Performance ◽  
Pavement Maintenance ◽  
The Road ◽  
Road Grade

established the evaluation index according to the influencing factors (the road grade, traffic volume, road conditions, the strength of pavement, pavement performance and anti-sliding ability, etc) of highway asphalt pavement maintenance scheme. According to the interrelation of the various indexes, I put forward a set of method about the maintenance of the highway asphalt pavement.

Evaluation of Typical Asphalt Pavement Structure Performance of Chang-Ji Freeway

2011 ◽  
Vol 317-319 ◽  
pp. 269-274
Author(s):  
Ying Xue Zhang ◽  
Zhao Hui Liu ◽  
Ben Peng Li
Keyword(s):  
Friction Coefficient ◽  
Asphalt Pavement ◽  
Hunan Province ◽  
Pavement Performance ◽  
Theory Method ◽  
Natural Conditions ◽  
Construction Technique ◽  
Material Supply ◽  
Vehicle Load ◽  
Pavement Structure

Typical asphalt pavement structure of freeway integrates the advantages of experience method and theory method. It is the pavement structure combinating of different regions pavement projects experience which considers the factors of natural conditions, vehicle load, material supply, construction technique and maintenance operations and so on. This paper contains site detection and evaluation of the performance of 8 kinds of asphalt pavement structure testing roads of Chang-Ji freeway in Hunan Province, using five indicators of rebound deflection, flatness, friction coefficient, structure depth and seep coefficient and so on. We carry on tracking observation about the pavement’s performance for 2 years continuously. The results showed that the typical asphalt pavement structure testing sections of Chang-Ji freeway have been built successfully and pavement performance is good.

Asphalt Pavement Performance Evaluation Based on SOM Neural Network

2012 ◽  
Vol 188 ◽  
pp. 219-225
Author(s):  
Man Jiang Hu ◽  
Ru Hai Ge ◽  
Qi Feng Qiu ◽  
Qiao Jin
Keyword(s):  
Neural Network ◽  
Performance Evaluation ◽  
Evaluation Method ◽  
Asphalt Pavement ◽  
Pavement Performance ◽  
Ride Quality ◽  
Skid Resistance ◽  
Affecting Factors ◽  
Pavement Condition ◽  
Som Neural Network

In order to make the performance evaluation of asphalt pavement more scientific and reasonable, the author put forward an evaluation method based on SOM neural Network. This method takes comprehensive consideration of four affecting factors including pavement ride quality, pavement condition, pavement structure bearing capacity and pavement skid resistance. Then designs and simulates the SOMNN programming to comprehensive evaluate the pavement performance. Finally, the method was verified by an example, and the calculation has been compared with the traditional evaluation methods. Results showed that the method was reasonable and effective. Compared with others, this method was simpler, cheaper and easier to promote and has better superiority.

scholarly journals Application of Response Surface Method for Analyzing Pavement Performance

2021 ◽  
Author(s):  
Seyed Reza Omranian
Keyword(s):  
Response Surface ◽  
Response Surface Method ◽  
Asphalt Pavement ◽  
Asphalt Binder ◽  
Road Construction ◽  
Pavement Performance ◽  
Pavement Materials ◽  
The Road ◽  
Surface Method ◽  
Pavement Service Life

Hot mix asphalt (HMA) is a common material that has been largely used in the road construction industries. The main constituents of HMA are asphalt binder, mineral aggregate, and filler. The asphalt binder bounds aggregate and filler particles together and also waterproofs the mixture. The aggregate acts as a stone skeleton to impart strength and toughness to the structure, while the filler fills pores in the mixture which can improve adhesion and cohesion as well as moisture resistance. The HMA behavior depends on individual component properties and their combined reaction in the mixture. Asphalt binder properties change due to different factors. Over the years, asphalt pavement materials age, causing binder embrittlement which adversely affects pavement service life. Response Surface Method (RSM) is a set of techniques that are used to develop a series of experiment designs, determining relationships between experimental factors and responses, and using these relationships to determine the optimum conditions. Incorporating RSM in pavement technologies can beneficially help researchers to develop a better experimental matrix and give them the opportunity to analyze the changes in pavement performance in a faster, more effective, and reliable way.

Application of Improved TOPSIS Method to the Evaluation on Asphalt Pavement Performance

2012 ◽  
Vol 253-255 ◽  
pp. 611-615
Author(s):  
Qing Yan Shuai ◽  
Ya Bo He
Keyword(s):  
Asphalt Pavement ◽  
Maintenance Management ◽  
Pavement Performance ◽  
Optimal Decision ◽  
Topsis Method ◽  
Pavement Maintenance ◽  
The Road ◽  
Maintenance Time ◽  
Topsis Model

As a fundamental work for pavement maintenance management, the evaluation on asphalt pavement performance is the premise of determining the maintenance time and strategy. Aiming at the shortcomings of traditional TOPSIS model, an improved TOPSIS method is proposed to make comprehensive assessment on asphalt pavement performance. Instead of the Euclid distance, the vertical distance between the evaluation object and positive ideal solution is taken as the basis for alternatives ranking. A case study is carried out, indicating that this approach is rational and feasible. The result can provide a certain reference for the road management department to make optimal decision.

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