Archived
This content is available here strictly for research, reference, and/or recordkeeping and as such it may not be fully accessible. If you work or study at University of Kentucky and would like to request an accessible version, please use the SensusAccess Document Converter.
Abstract
A sampling-type crack survey was made in July 1969; 200 feet in each 1000 feet were sampled. The average interval between cracks was 5.78 feet. Paving was completed in late 1968. The average crack interval in July 1970 was 4.14 feet. The 1970 survey was also a sampling type.
It is apparent that cracking approached maturity or equilibrium during the first year. Apparently, too, most of the cracking occurred during the first few weeks after construction – which suggests curing shrinkage as a contributory cause. A discussion of the significance of time and temperature will follow the presentation of other survey observations.
A frequency-distribution graph of crack intervals was prepared (Figure 1) to illustrate the mode. Although no discrete mode is apparent, it is evident that there was a strong tendency for cracks to occur at intervals ranging between 1 and 6 feet. The dominant interval appears to be 2 feet. Typical cracks are illustrated in the accompanying photographs (Figures 2 through 6).
Report Date
12-1970
Report Number
No. 300
Digital Object Identifier
http://dx.doi.org/10.13023/KTC.RR.1970.300
Repository Citation
Havens, James H., "Continuously Reinforced Concrete Pavement" (1970). Kentucky Transportation Center Research Report. 959.
https://uknowledge.uky.edu/ktc_researchreports/959
Notes
Memo from James H. Havens (Department of Transportation, Commonwealth of Kentucky) to William B. Blake (Department of Transportation, Commonwealth of Kentucky), December 8, 1970.