Study on Controlling of Transverse Shrinkage Cracking in Cement Stabilized Macadam Base

Transverse shrinkage crack in cement stabilized macadam base and reflecting crack due to shrinkage are one of most severely damage in semi-rigid asphalt pavement. To compare strength and shrinkage performance of various cement-treated materials and find out method to reduce transverse shrinkage crack, finite element method were used to analyze shrinkage stress in different cement-treated base when water loses or temperature changes, cement-treated materials with different cement dosage were used to carry out indoor strength test and build test- road.The finite element analysis and test results show that shrinkage stress in base rises with cement dosage increased; unconfined compression strength for seventh day of cement-treated materials satisfies specification requirement only possess of 2.5 percent cement; lessen cement dosage of base materials as long as strength meet requirement to reduce shrinkage crack in base is feasible, variability for base strength will increase when cement dose decreased yet, therefore, to improve construction method is quite necessary.

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  • Corporate Authors:

    Hubei Key Laboratory of Control Structure, Huazhong University of Science £¦ Technology, Wuhan Hubei 430074, China

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  • Authors:
    • YAN, WANG
    • FU-JIAN, N I
    • QIANG, L I
    • ZAI-XIN, L I
  • Publication Date: 2008-2

Language

  • Chinese

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Filing Info

  • Accession Number: 01155201
  • Record Type: Publication
  • Source Agency: Transport Research Centre (CDV)
  • Files: ITRD
  • Created Date: Apr 23 2010 10:57AM