HIPERPAV II Adopted by Ohio DOT
HIPERPAV II (the name derives from HIgh PERformance PAVing) is a comprehensive, user-friendly software package.
As Portland Cement Concrete (PCC) overlays are increasingly being used as a rehabilitation technique for States seeking to extend service life, reduce maintenance requirements, and lower life-cycle costs, the technology must be used with the right tools. HIPERPAV II is one of these tools. The FHWA Office of Pavement Technology and the FHWA Pavement and Materials Technical Service Team partnered in February to present three 1-day training sessions on HIPERPAV II for the Ohio Department of Transportation (DOT), Ohio FHWA Division Office, and local highway contractors.
With more than 80 road construction projects scheduled for 2005, the Ohio DOT benefited from the sessions conducted by Gary Crawford, Concrete Quality Engineer with the FHWA Office of Pavement Technology, and Angel Correa, Pavement Design Engineer with the Pavement and Materials Technical Service Team. HIPERPAV II (the name derives from HIgh PERformance PAVing) is a comprehensive, user-friendly software package. Its predecessor, HIPERPAV, was a two-module program that contained a set of guidelines to help users predict potential pavement performance problems. The latest version of the software allows users to evaluate the effects that materials, construction, environment, and design practices have on the short-term and long-term performance of PCC pavements. By utilizing HIPERPAV II, users can optimize any of the variables involved during construction operations to minimize the potential for random cracking of concrete slabs.
How is Ohio benefiting from using HIPERPAV II?
Since HIPERPAV II was released by the FHWA in 2004, experts such as Correa and Crawford have traveled across the United States to deploy use of the software. In Ohio, 50 participants took advantage of the training, and the Ohio DOT has now drafted a construction specification requiring all contractors to run a HIPERPAV analysis on all PCC pavement construction projects prior to paving. The effects of this analysis will ensure that all environmental and construction factors involved in the analysis period will not produce stresses higher than the strength of the concrete; therefore minimizing the potential for cracking. If the HIPERPAV analysis shows high risk for cracking, the contractor and DOT will make modifications to the construction operations to lower that risk.
The Bottom Line
The use of HIPERPAV II in Ohio will result in longer lasting PCC pavements throughout the State. The effects of this technology can be seen, as it will produce potential cost savings for both the State and contractors, and less traffic disruptions to the highway users.
For more information, contact:
HIPERPAV II Training
Pavement Design Engineer
FHWA Pavement and Materials Technical Service Team
Ohio DOT Construction Specifications
Office of Materials Management