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Measure and Analyse on Thermal on Thermal Field of Asphalt Pavement

Author: HuXiaoYuan
Tutor: YanXiLi
School: Chang'an University
Course: Road and Railway Engineering
Keywords: Asphalt Pavement Temperature field Temperature gradient Testing techniques Data analysis methods
CLC: U416.217
Type: Master's thesis
Year: 2011
Downloads: 63
Quote: 0
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Abstract


The asphalt mixture is a typical viscoelastroplasticity body and its rheological properties change with temperature is significantly different . The paved asphalt mixture of asphalt pavement is completely exposed to the natural environment , and withstood the impact of the ongoing changes in the climate and environment , the atmospheric temperature is bound to the asphalt pavement of the road with a significant impact on performance , such as high temperature rutting and low temperature cracking diseases , these diseases have a serious impact on the life of the road and driving comfort and security . Temperature field of asphalt pavement is the study of high-temperature rutting and low temperature cracking one of the basic work , therefore , if we know the actual temperature of the asphalt pavement structure layer position can be targeted to strengthen the weak layer of asphalt pavement design , thereby delaying the disease appears or reduce disease generated probability. Sichuan Province wide bar highway based on the project , using equipment installed during construction , the operators during the test pavement temperature testing techniques . Along the topographic features to select the Rolling area, mountain area and the transition zone between the two three typical test sections . Condition for the temperature of the layer of the weather measured asphalt pavement structure , according to the typical test sections , three groups of test instruments installed in the construction process , and uninterruptible automatically collected during the operational phase of the pavement structure temperature . And finishing and reliability analysis of the test data , the establishment of a unified database of temperature . Based on the the atmospheric temperature meteorologist analysis , temperatures throughout the year is divided into a period of cold , room temperature and high temperature period , and each temperature phase representation month ( 1,4,7,10 months ) database as objects from which to select the characteristics of days the temperature of the test data analysis, the temperature field of asphalt pavement laid an important foundation for the study of the geometric range the temperature and rutting of the asphalt pavement on Viscoelastoplastic occurred .

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CLC: > Transportation > Road transport > Road works > Roadbed, pavement engineering > Pavement Engineering > Road : use of the material points > Asphalt Pavement
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