Patent ID: 11860150
Assignee: BEIJING UNIVERSITY OF TECHNOLOGY
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 0:
1. A method for evaluating damage-healing characteristics of paving asphalt based on energetics principle, comprising:
S1, obtaining a numerical integral AH of a stored pseudo strain energy required by asphalt to compensate damage-healing to loading times and obtaining local life compensation ΔN of the asphalt benefiting from damage-healing characteristics; and the loading times comprising cumulative cyclic loading times NH when a damage intensity reaches a damage intensity level before a rest period and cumulative cyclic loading times Nm at beginning of the rest period in a secondary loading process after the rest period of the asphalt;
S2, calculating an average stored pseudo strain energy QH of the asphalt according to the following formula:, Q
    H
   
   =
   
    
     A
     H
    
    
     Δ
     ⁢
     N
    
   
  
  ;
 

 and
S3, evaluating the damage-healing characteristics of paving asphalt according to the average stored pseudo strain energy QH of the asphalt.