The cracking of asphalt pavement caused by temperature changes is one of the main problems in cold highlands where climate characteristics include a low average temperature and a large variation in temperature. Temperature contraction cracking has a greater relation to the flexural strength of asphalt mixture. The effects of the temperature, nominal maximum size of aggregate and the asphalt-aggregate ratio on flexural strength are investigated in the laboratory combining with the climate features of cold areas. The results show that there are two strategic points, - 10°C and 15°C in the curve of the flexural tensile strength under the five kinds of temperatures. The flexural tensile strength of AC-13 is greater than that of AC-16 at lower temperatures. The asphalt-aggregate ratio is given for the maximum flexural strength of 6.0%-7.0%.The extent of influence on flexural strength is analyzed by variance analysis, revealing that temperature and asphalt-aggregate ratio have a highly significant influence on flexural strength of asphalt mixture. Regression analysis is conducted for the results using a binary quadratic model. The yield for temperature and asphalt-aggregate ratio can be described well by the model.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Research on Flexural Strength of Asphalt Mixture in Cold Highlands


    Contributors:
    Wei, Youpo (author) / Song, Yunxiang (author) / Li, Yumei (author)

    Conference:

    Ninth Asia Pacific Transportation Development Conference ; 2012 ; Chongqing, China


    Published in:

    Publication date :

    2012-06-28




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Early Strength Evaluation of High-Performance Emulsified Asphalt Cold Recycled Mixture

    Wang, D.C. / Hu, X.G. / Song, Y.X. | British Library Conference Proceedings | 2014


    Cold-laid asphalt mixture transportation equipment

    CAO GUANGCE | European Patent Office | 2021

    Free access

    Research on Strength Developing Procedure of Epoxy Asphalt Mixture

    Chen, L. L. / Qian, Z. D. / Jiang, C. L. | ASCE | 2012