THE ULTRATHIN WHITETOPPING OPTION

Authors

  • James K. Cable
  • John Hart
  • Thomas Ciha

DOI:

https://doi.org/10.33593/iccp.v7i1.255

Keywords:

ultrathin whitetopping, overlay option, performance life, overlay performance

Abstract

In 1994, Iowa built 11.6km (7.2 miles) of ultrathin whitetopping on a segment of Iowa Highway 21. Research was carried out under Iowa Highway Research Board Project Number HR-559 for five years and TR-432 for an additional five years. When considering ultrathin as an overlay option, is how long is the performance life and what are the rehabilitation options? Some 41 sections of pavement including three overlay depths, four joint patterns, three surface preparations, and fiber usage were constructed. The methods employed in the rehabilitation and success of each are discussed. Deflection testing, visual surveys, coring, and direct shear testing have continued over the seven years. Analysis of the data have identified ways to estimate accurately the overlay performance in terms of bond strength retained.

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Published

2001-09-09

Issue

2001: Proceedings of the 7th International Conference on Concrete Pavements

Section

Articles

How to Cite

[1]
Cable, J.K. et al. 2001. THE ULTRATHIN WHITETOPPING OPTION. Proceedings of the International Conference on Concrete Pavements. 7, 1 (Sep. 2001). DOI:https://doi.org/10.33593/iccp.v7i1.255.