Study on Temperature Prediction Model of Asphalt Concrete Pavement

2011 ◽  
Vol 243-249 ◽  
pp. 506-509
Author(s):  
Yuan Xun Zheng ◽  
Ying Chun Cai ◽  
Ya Min Zhang
Keyword(s):  
Asphalt Concrete ◽  
Prediction Models ◽  
Asphalt Pavement ◽  
Temperature Data ◽  
Measured Temperature ◽  
Temperature Prediction ◽  
Distribution Laws ◽  
Pavement Temperature ◽  
Asphalt Concrete Pavement ◽  
Excellent Accuracy

This study presents a kind of new model correlates air and pavement temperatures in bituminous pavement. Based on abundant measured temperature data in Henan Province, China, distribution laws in asphalt conctete pavement temperature is studied detailed and the dependency between air and pavement temperature is discussed by the method of regression analysis and the prediction models of asphalt pavement temperature are established. Comparisons between measured and predicted asphalt pavement temperatures indicate that the models are equipped with comprehensive applicability and excellent accuracy.

scholarly journals Pavement Temperature Prediction Model for Oman Climate Condition

2017 ◽  
Author(s):  
Amani Al-Kalbani ◽  
Siham G. Farag
Keyword(s):  
Air Temperature ◽  
Asphalt Pavement ◽  
Paper Study ◽  
Climate Condition ◽  
Temperature Prediction ◽  
Development Models ◽  
System Temperature ◽  
Standard Models ◽  
Pavement Temperature ◽  
The Relationship

Asphalt pavement is form an integral part of any transportation system. Temperature is the significant factor that effect on the performance and life span of a pavement. This paper study the relationship between the air temperature and asphalt pavement temperature and using Excel in order to predicate surface asphalt pavement model for Muscat climate. The models were compared with the standard models SHRP and LTPP models [3]. The development models resulted the surface pavement temperature was taken more time in heating cycle than air temperature. When compared the air temperature and surface asphalt pavement temperature with the standards models SHRP and LTPP models. There was difference between them due to the standards models was design for low temperature under zero where in Muscat temperature cannot be under zero [2].

scholarly journals Prediction Model for Asphalt Pavement Temperature in High-Temperature Season in Beijing

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Jing Chao ◽  
Zhang Jinxi
Keyword(s):  
High Temperature ◽  
Environmental Factors ◽  
Least Squares Method ◽  
Asphalt Pavement ◽  
Temperature Data ◽  
Environmental Data ◽  
Strongly Correlated ◽  
Pavement Temperature ◽  
And Performance ◽  
Partial Least Squares Method

Asphalt pavement temperatures greatly influence on the bearing capacity and performance, especially in high-temperature season. The variation rules of pavement temperatures under the high-temperature range affect the design and maintenance management of the asphalt pavement, as well as the accurate prediction for pavement temperatures. However, asphalt pavement temperature is greatly affected by various strongly correlated environmental factors and cannot be measured directly or predicted effectively. In this project, temperature sensors were embedded in the pavement of in-service road to collect temperature data by continuous record measurement, and regression model was conducted by the partial least squares method through comprehensive analysis on the pavement temperature data and synchronously environmental data from local weather station measured in July 2013, July 2014, and July 2015. The quantitative relationships in high-temperature season between environmental factors and pavement temperature were determined, and a model was established to predict the temperature of asphalt pavement based on environmental data. The model was verified by the recorded data from July 1, 2016, to July 31, 2016, and the results indicated that the pavement temperature can be predicted accurately and reliably by the proposed model.

Research on Anti-Rutting Performance of High Modulus Asphalt Concrete Pavement

2010 ◽  
Vol 163-167 ◽  
pp. 4474-4477 ◽  
Author(s):  
Wei Ouyang ◽  
Guo Feng Yu ◽  
Fang Fang Zhu
Keyword(s):  
Dynamic Stability ◽  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Maximum Shear Stress ◽  
Middle Layer ◽  
High Modulus ◽  
Mechanical Calculation ◽  
Result Show ◽  
Pavement Structure ◽  
Asphalt Concrete Pavement

The new ways of anti-rutting was put forward by improving modulus of asphalt concrete and the effect of HMAT(high modulus asphalt concrete) on rutting is studied in view of mechanics; The cause of asphalt pavement track is closely related to pavement structure under load. Starting from the mechanism of rutting, the mechanical property of HMAT and the effect of modulus in middle layer on the rutting were analyzed; the dynamic stability and modulus of HMAC were analyzed by text and the result show that Increase of the dynamic stability and modulus of HMAC went against rutting; The mechanism of pavement structure was analyzed by the numerical analysis show that the maximum shear stress occurred in middle layer of pavement structure according to mechanical calculation. HMAC can raise modulus of elasticity of middle layer. HMAC can also improve stress state of pavement structure, reduce shear strain and prevent asphalt pavement track.

scholarly journals A Review on Phase Change Materials Incorporation in Asphalt Pavement

2018 ◽  
Vol 3 (2) ◽  
pp. 171
Author(s):  
Intan Kumalasari ◽  
Madzlan Napiah ◽  
Muslich H. Sutanto
Keyword(s):  
Porous Material ◽  
Phase Change ◽  
Phase Change Material ◽  
Asphalt Concrete ◽  
Phase Change Materials ◽  
Mechanical Performance ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Pavement Temperature ◽  
Change Material

Phase Change Material (later to be referred as PCM) has been successfully utilized in some areas. PCM has emerged as one of the materials for pavement temperature reducing due to its latent heat. Some research has been done regarding this topic. The objective of this paper is to review the development of PCM in asphalt pavement. The review has shown that organic PCM appears as the favourite PCM in asphalt concrete studies. Choice of porous material depends on method of incorporation. Reduction of temperature in PCM-asphalt mixture compared to conventional one is undoubtable. However, the mechanical performance of PCM-asphalt mixture need to be explored.

scholarly journals ENSURING THE DURABILITY OF THE ASPHALT CONCRETE COATING ON THE HARD BASIS OF ROADS

2021 ◽  
Vol 1 (48) ◽  
pp. 242-256
Author(s):  
Onyschenko A ◽  
◽  
Fedorenko O ◽  
Ianchuk L ◽  
◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Tensile Load ◽  
Theory Of Elasticity ◽  
Concrete Pavement ◽  
Concrete Mixture ◽  
Grain Composition ◽  
Scientific Publications ◽  
Track Formation ◽  
Asphalt Concrete Pavement

The article is devoted to the development of practical methods to ensure the durability of asphalt pavement on a rigid basis of roads. The goal of the work. Practical methods of ensuring the durability of asphalt pavement on a rigid basis of roads are proposed. The object of research is asphalt-concrete pavement on a hard base of highways. Research method: analytical-experimental using the provisions of the theory of elasticity and thermo-viscoelasticity and experimental methods of research of track formation in asphalt concrete pavement on a rigid basis; mathematical statistics; statistical analysis of scientific publications, technical and normative literature. The article presents the features of the design of grain warehouses of asphalt mixtures, namely: The proposed features of the design of grain warehouses of asphalt concrete, taking into account the rate of resistance to track formation; Requirements for designing the grain composition of asphalt concrete of high resistance to track formation with optimization in terms of estimated service life are proposed. The conducted researches allowed to develop a method of estimating the homogeneity from the time of transportation of the asphalt concrete mixture in the car body to the object according to the resistance of asphalt concrete to the formation of the track. Requirements for checking the flow rate in the crushed-mastic asphalt-concrete mixture due to the terms of its storage and transportation have been developed, which avoids segregation of the coating. The criterion of strength of asphalt concrete pavement on a rigid basis of the highway is improved due to the consideration of different time of action of tensile load at bending that will allow to design more precisely a covering of the increased durability. The technique of the minimum admissible temperature of consolidation of asphalt concrete mix at the device of a covering on a rigid basis of highways that will allow to provide durability of a covering is offered for practical application. KEY WORDS: ASPHALT CONCRETE, TRACK RESISTANCE, GRAIN COMPOSITION DESIGN, TEMPERATURE, TRANSPORTATION, SEALING

Asphalt Pavement Preventive Maintenance Technology Overview

2014 ◽  
Vol 638-640 ◽  
pp. 1135-1138 ◽  
Author(s):  
Zheng Bing Liu
Keyword(s):  
Economic Development ◽  
Asphalt Concrete ◽  
Preventive Maintenance ◽  
Asphalt Pavement ◽  
Present Situation ◽  
Concrete Pavement ◽  
Traffic Load ◽  
Highway Traffic ◽  
Damage Repair ◽  
Asphalt Concrete Pavement

Since twentieth Century, the middle of 80's, our country highway enters the building climax. By the end of 2011, our country highway traffic mileage of 85000 kilometers, accounting for about 80% of the asphalt concrete pavement. Along with the age increasing and the mileage of highway's growth, has long suffered from the traffic load and environmental effects of the asphalt pavement will have varying degrees of damage, repair workload of asphalt pavement will be bigger and bigger, more and more complex. In this situation, has the important meaning of preventive maintenance of Expressway Asphalt pavement. This paper introduces the present situation of preventive maintenance of highway at home and abroad, and points out the significance of preventive maintenance on highway and economic development, discusses the measures and preventive maintenance of asphalt pavement.

Measurement of Internal Temperature Distribution in PEMFCs by Nondestructive Inverse Method

2005 ◽  
Author(s):  
Mei-Hsia Chang ◽  
Chin-Hsiang Cheng
Keyword(s):  
Temperature Distribution ◽  
Outer Surface ◽  
Inverse Method ◽  
Initial Guess ◽  
Temperature Data ◽  
Membrane Electrode ◽  
Measured Temperature ◽  
Internal Temperature ◽  
Temperature Prediction ◽  
End Plate

A nondestructive inverse method is developed to determine the internal temperature distribution of PEMFCs. In this study, attention is focused on global measurement for the irregular temperature distribution at the interface between the carbon plate and the membrane electrode assembly (MEA) based on the measured temperature data on the outer surface of the end plate. In this report, a concept of point-by-point temperature prediction is adopted. This approach is particularly suitable for determining an irregular temperature distribution that is difficult to handle by the existing polynomial-function approach [1]. A number of test cases are considered in this study. Three irregular temperature functions are specified and regarded as exact temperature distributions for testing the performance of the approach. Influence of the uncertainties of the measured temperature data on the outer surface and the number of the temperature prediction points (NX×NY) on the end plate surface is evaluated. In addition, the effects of the initial guess on the uniqueness of the predictions are also investigated.

Study on Temperature Distribution Characteristic of Asphalt Mixtures of Bridge Deck

2010 ◽  
Vol 163-167 ◽  
pp. 1829-1832
Author(s):  
Qing Long You ◽  
Nan Xiang Zheng ◽  
Gang Lei Shi
Keyword(s):  
Temperature Distribution ◽  
Temperature Profile ◽  
Bridge Deck ◽  
Prediction Models ◽  
Asphalt Pavement ◽  
Highway Bridges ◽  
Temperature Prediction ◽  
Road Pavement ◽  
Load Carrying ◽  
The Difference

Flexible pavements comprise a majority part of highways in china. Many highway bridges are constructed in these highways. These primary highway bridges are subjected to the same heavy loading as the conventional asphalt pavement, but caused much more significant damage than the conventional asphalt pavement. As hot-mix asphalt (HMA) is a visco-elastic material and the all around environment is different between road pavement and bridge deck, the structural or load-carrying capacity of road pavement and bridge deck is different. Thus, to accurately determine in situ strength characteristics of flexible pavement, it is necessary to predict the temperature distribution within the HMA layers and find the difference between road pavement and bridge deck. The majority of previously published research concentrated on pavement temperature prediction. To confirm the bridge deck temperature profile, observing the temperature at bridge deck and road pavement for two months. Compared with the temperature profile of bridge deck and road pavement, find the difference between them. Then some daily temperature prediction models are analyzed and develop a modified double-sine model to simulate the surface temperature variation of bridge deck.

scholarly journals Dynamic Quality Monitoring System to Assess the Quality of Asphalt Concrete Pavement

Buildings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 577
Author(s):  
Ziyuan Ma ◽  
Jingxiao Zhang ◽  
Simon P. Philbin ◽  
Hui Li ◽  
Jie Yang ◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Quality Evaluation ◽  
Asphalt Pavement ◽  
Quality Monitoring ◽  
Construction Quality ◽  
Digital Monitoring ◽  
Pavement Construction ◽  
Dynamic Quality ◽  
Asphalt Concrete Pavement

With the rapid development of new technologies, such as big data, the Internet of Things (IoT) and intelligent sensing, the traditional asphalt pavement construction quality evaluation method has been unable to meet the needs of road digital construction. At the same time, the development of such technologies enables a new management system for asphalt pavement construction. In this study, firstly, the dynamic quality monitoring system of asphalt concrete pavement is established by adopting the BeiDou Navigation Satellite System, intelligent sensing, the IoT and 5G technology. This allows key technical indicators to be collected and transmitted for the whole process of asphalt mixture, which includes the mixing plant, transport vehicle, paving and compaction. Secondly, combined with AHP and the entropy weight (EW) method, the index combination weight is calculated. The comprehensive index for the pavement digital construction quality index (PCQ) is proposed to reflect the impact of monitoring indicators on pavement quality. An expert decision-making model is formed by using the improved particle swarm optimization (PSO) algorithm coupled with radial basis function neural network (RBF). Finally, the digital monitoring index and pavement performance index are connected to establish a full-time and multi-dimensional digital construction quality evaluation model. This study is verified by a database created from the digital monitoring data of pavement construction collected from a highway construction project. The system proposed in this study can accurately reflect the quality of pavement digital construction and solve the lag problem existing in the feedback of construction site.

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