Title Determination of the fatigue-cracking resistance of asphalt concrete mixtures at low temperatures
Author Mun, S.; Lee, S.
Author Affil Mun, S., Korea Expressway Corporation, Expressway and Transportation Research Institute, Hwaseong, South Korea. Other: Seoul Metropolitan Government, South Korea
Source Cold Regions Science and Technology, 61(2-3), p.116-124, . Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0165- 232X
Publication Date May 2010
Notes In English. Based on Publisher- supplied data GeoRef Acc. No: 309574
Index Terms bitumens; concretes; construction materials; cracks; damage; elastic properties; analysis (mathematics); mechanical properties; forecasting; strains; stresses; temperature; viscoelastic materials; algorithms; asphalt; concrete; direct tension tests; dynamic modulus; low temperature; mathematical methods; prediction; roads; strain; stress
Abstract This paper describes how to determine the fatigue-cracking resistance of hot-mix asphalt (HMA) mixtures and formulate a viscoelastic continuum damage algorithm based on the comparison between measured and calculated strain vs. stress histories at low temperatures. The fatigue-cracking resistance characteristics evaluated in this study were based on the dynamic modulus test for material stiffness characterization and the constant-crosshead-rate tension test for fatigue-cracking characterization, using dense-graded and lime-modified HMA mixtures. The main contributions of this paper are the methods for determining the optimum asphalt content of the HMA mixtures to improve fatigue-cracking resistance and for evaluating the fatigue-cracking resistance of various HMA mixtures.
URL http://hdl.handle.net/10.1016/j.coldregions.2010.02.003
Publication Type journal article
Record ID 65006534