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A Mechanistic–Empirical Model for Top–Down Cracking of Asphalt Pavements Layers (2018) / Chapter Skim
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Pages 200-203

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From page 200...
... O-1 APPENDIX O MANUAL AND EXAMPLE OF TOP-DOWN CRACKING SOFTWARE One example is presented in this appendix to illustrate using the program named "TopDown Cracking Software" to compute the top-down initiation time, analyze the propagation of top-down cracking and predict calibration coefficients.
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From page 201...
... O-2 Figure O-2 Analysis Results for the Example. Interpretation of Inputs for Top-down Cracking Software Name, description and unit of each input and result are listed in Table 1 and Table 2, respectively..
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From page 202...
... O-3 Model the curve of relaxation modulus of asphalt mixture again time using function of in which is a relaxation modulus parameter MPa m-value Model the curve of relaxation modulus of asphalt mixture again time using function of in which is a relaxation modulus parameter Load Spectrum (Annual Number of Axles) Select traffic characteristics at level 1 Alpha Single Tire Load Magnitude of accumulative single tire load Beta Single Tire Load Scale factor of accumulative single tire load Gamma Single Tire Load Shape factor of accumulative single tire load Alpha Dual Tire Load Magnitude of accumulative dual tire load Beta Dual Tire Load Scale factor of accumulative dual tire load Gamma Dual Tire Load Shape factor of accumulative dual tire load Annual Average Daily Truck Traffic (AADTT)
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From page 203...
... O-4 Table O-2 List of Interpretation of Results Results Name Description Unit The value of rho Calibration coefficient of in topdown cracking propagation expression of Days The value of beta Calibration coefficient of in topdown cracking propagation expression of The value of Crack initiation time of in topdown cracking propagation expression of Days
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