FAST TRACK PAVING: CONCRETE TEMPERATURE CONTROL AND TRAFFIC OPENING CRITERIA FOR BONDED CONCRETE OVERLAYS. VOLUME II: HIPERPAV USER'S MANUAL
It has been theorized that early-age behavior caused by temperature and moisture changes can significantly affect the performance of a portland cement concrete pavement (PCCP) or bonded concrete overlay (BCO) over its service life. During the first 72 hours following placement, the strength of PCC is relatively low in comparison to the strength that it will eventually achieve. During this early-age period, critical stresses can develop that may lead to pavement damage, and ultimately loss of performance. This research focuses on modeling early-age behavior of both concrete pavements and BCOs subjected to stresses from moisture and thermal changes. It includes the development of a two-part, versatile, comprehensive set of guidelines that provide direction in the proper selection of design and construction variables to minimize early-age damage to the PCCP and BCO. The first part of these guidelines is qualitative in nature and is based upon the results of this effort, past experience, and engineering judgment. They are intended to identify design and construction inputs that are most likely to lead to good behavior during the early-age period. The second part of the guidelines is comprised of many complex models that have been developed to predict early-age behavior in jointed plain concrete pavements and BCOs. These models are used to verify good behavior from the selection of inputs made using the qualitative guidelines. These models include a PCC temperature development model that accounts for heat generation from the hydrating paste, solar insulation, surface convection, irradiation, and dynamic specific heat and thermal conductivity values. Several mechanical properties are also modeled including thermal coefficient of expansion, drying shrinkage, creep, strength, and modulus of elasticity (using maturity methods). Finally, restraint to free movement caused by slab-base friction and curling are modeled directly. The end product from this research is a comprehensive software package termed HIgh PERformance PAVing (HIPERPAV). This package, which incorporates the complex models developed, can be used as a stand-alone product to verify the overall effect of specific combinations of design, construction, and environmental inputs on early-age behavior of a PCCP and BCO. This report serves as the users manual for the HIPERPAV software.
- Record URL:
- Record URL:
-
Supplemental Notes:
- See also FHWA-RD-98-167, Final Report; and FHWA-RD-99-200, Addendum to the User's Manual.
-
Corporate Authors:
Transtec, Incorporated
1012 East 38 1/2 Street
Austin, TX United States 78751Federal Highway Administration
Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
McLean, VA United States 22101 -
Authors:
- McCullough, B F
- Rasmussen, R O
- Publication Date: 1999-10
Language
- English
Media Info
- Media Type: Digital/other
- Features: Appendices; Figures; Tables;
- Pagination: 76 p.
Subject/Index Terms
- TRT Terms: Computer program documentation; Concrete overlays; Concrete pavements; Construction; Construction management; Creep; Curling; Friction; Guidelines; Mathematical models; Modulus of elasticity; Moisture content; Pavement design; Shrinkage; Software packages; Strength of materials; Stresses; Temperature; Thermal expansion
- Uncontrolled Terms: Early-age behavior (Pavements); Fast-track paving; Pavement damage
- Subject Areas: Construction; Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I32: Concrete; I52: Construction of Pavements and Surfacings;
Filing Info
- Accession Number: 00789792
- Record Type: Publication
- Report/Paper Numbers: FHWA-RD-98-168
- Contract Numbers: DTFH61-93-C-00106
- Files: NTL, TRIS, ATRI, USDOT
- Created Date: Mar 16 2001 12:00AM