Analysis of Rapid Runway Repairs Subjected to Large Magnitude Dynamic Loads
Abstract
Conclusions, based on laboratory testing and computer analyses conducted for this investigation, include: 1) Design and analysis of rapid runway repairs subjected to large magnitude dynamic loads require that dynamic material properties be determined. Laboratory testing for dynamic material properties must be conducted at frequencies and load rates corresponding to aircraft speeds at which large magnitude loads are anticipated. Equations developed in this report can be used to calculate the frequency and duration of loading which correspond to an aircraft speed for a particular type of aircraft and pavement system. 2) The modulus of rupture of polymer concrete increases with rate of loading; the increase is within the range of increases for Portland Cement Concrete. For the fatigue life of polymer concrete, there is a high correlation between experimental results and an equation developed in this study which relates probability of survival with stress level and the number of cycles to failure. 3) Because of the high modulus of rupture of polymer concrete, all of the aircraft-pavement systems analyzed in this report are more than adequate for flexural fatigue failure criteria. and 4) Design of sulfur concrete repairs must be based on the maximum dynamic load. (EDC)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1981
- Accession Number
- ADA215240
Entities
People
- Gerald A. Woelfl
Organizations
- Marquette University