HIPERPAV III - An Enhanced FHWA Software for Simulating Early-Age Concrete Pavement Behaviors

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Title: HIPERPAV III - An Enhanced FHWA Software for Simulating Early-Age Concrete Pavement Behaviors

Author(s): J.M. Ruiz, S.I. Garber, Q. Xu, J.C. Dick, G.K. Chang, and R.O. Rasmussen

Publication: Special Publication

Volume: 266

Issue:

Appears on pages(s): 1-14

Keywords: heat evolution; HIPERPAV; moisture model; sensitivity analysis.

Date: 10/1/2009

Abstract:
This paper describes the enhancements made to the FHWA’s HIPERPAV software program for simulating early-age concrete pavement behavior. It gives a brief background describing the software, discusses the modeling improvements that have been made, and suggests future work for additional improvements. An enhanced moisture transport model has been developed and incorporated into the HIPERPAV software, and results show that the moisture distribution and associated stress/strength developments are significantly affected by the model parameters, environmental, and construction conditions. New inputs were included in the software to define the experimentally determined hydration curve parameters to improve predictions of degree of hydration and portland cement concrete (PCC) temperature development. A batch mode was added for analysis of multiple strategies at once, and a comparison module was created that allow users to compare simulation results from multiple strategies and run sensitivity analysis for multiple variables.