U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
This report is an archived publication and may contain dated technical, contact, and link information |
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Publication Number: FHWA-04-122 Date: February 2005 |
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This report documents the investigation, modeling and validation of the enhanced High PERformance PAVing (HIPEPAV®) II, a comprehensive, yet user-friendly software package. HIPERPAV II primarily incorporates a set of guidelines for the proper selection of design and construction variables to minimize early-age damage to Jointed Plain Concrete Pavement (JPCP) and Continuously Reinforced Concrete Pavement (CRCP). In addition, the software determines the effect of early-age behavior factors on JPCP long-term performance. This report, Volume II of a three-volume set, is the Construction and Design Guidelines and HIPERPAV II User's Manual, which provides general instructions on the use and application of the HIPERPAV II. Volume I is the Project Summary documenting the efforts undertaken for the development of the guidelines. Volume III is the Technical Appendices, which documents the investigation, modeling, and validation of the HIPEPAV II. HIPERPAV II software program will be available on a CD, or will be downloadable from FHWA Web site https://www.fhwa.dot.gov/pavement/pccp/hipemain.cfm.
This report will be of interest to those involved in concrete pavement mix design, as well as the design and construction of concrete pavements. Sufficient copies of this report and CD software program are being distributed to provide two copies to each Federal Highway Administration (FHWA) Resource Center, two copies to each FHWA Division Office, and a minimum of four copies to each State highway agency. Additional copies for the public are available from the National Technical Information Services (NTIS), 5285 Port Royal Road, Springfield, VA 22161.
T.
Paul Teng, P.E.
Director, Office of Infrastructure
Research and Development
This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in this document. This report does not constitute a standard, specification, or regulation.
The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturers' names appear in this report only because they are considered essential to the objective of the document.
The Federal Highway Administration (FHWA) provides high-quality information to serve Government, industry, and the public in a manner that promotes public understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement.
1. Report No. FHWA-HRT-04-122 |
2. Government Accession No. | 3. Recipient's Catalog No. | |||||||||||||
4. Title and Subtitle Computer-Based Guidelines For Concrete Pavements Volume II—Design and Construction Guidelines and HIPERPAV II User's Manual |
5. Report Date February 2005 |
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6. Performing Organization Code | |||||||||||||||
7. Author(s) J. Mauricio Ruiz, Robert O. Rasmussen, George K. Chang, Jason C. Dick, Patricia K. Nelson |
8. Performing Organization Report No. N/A |
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9. Performing Organization Name and Address The Transtec Group, Inc. 1012 East 38 ½ Street Austin, TX 78751 |
10. Work Unit No. | ||||||||||||||
11. Contract or Grant No. DTFH61-00-C-00121 |
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12. Sponsoring Agency Name and Address Office of Infrastructure Research and Development |
13. Type of Report and Period Covered Report |
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14. Sponsoring Agency Code | |||||||||||||||
15. Supplementary Notes Contracting Officer's Technical Representative: Fred Faridazar, HRDI-11 |
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16. Abstract This report documents enhancements incorporated in the (HIgh PERformance PAVing) HIPERPAV® II software. Enhancements made within this project include the addition of two major modules: a module to predict the performance of Jointed Plain Concrete Pavement (JPCP) as affected by early-age factors and a module to predict the early-age behavior (first 72 hours) and early life (up to 1 year) of Continuously Reinforced Concrete Pavement (CRCP). Two additional Federal Highway Administration (FHWA) studies were also incorporated: one that predicts dowel bearing stresses as a function of environmental loading during the early age and a module for optimization of concrete paving mixes as a function of 3-day strength, 28-day strength, and cost. Additional functionality to the software also was incorporated by reviewing and prioritizing the feedback provided by users of the first generation of the software, HIPERPAV I. This volume provides a comprehensive set of guidelines useful in designing and constructing both JPCP and CRCP concrete pavements. In addition, this document also provides sample case studies that illustrate the proper use of HIPERPAV II to optimize concrete pavement behavior and contains a user's manual for HIPERPAV II. This is the second volume in a series of three volumes that document the different tasks carried out in accomplishing the objectives for this project.
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17. Key Words High Performance Concrete Pavement; HIPERPAV; Jointed; Continuously Reinforced; Early-Age Behavior; Long-Term Performance; Mechanistic-Empirical Models; Temperature; Hydration; Shrinkage; Relaxation; Creep; Thermal Expansion; Slab Base Restraint; Curling; Warping; Plastic shrinkage; Cracking; JPCP; CRCP |
18. Distribution Statement No Restrictions. This document is available to the public through the National Technical Information Service; Springfield, VA 22161 |
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19. Security Classif. (of this report) Unclassified |
20. Security Classif. (of this page) Unclassified |
21. No. of Pages 173 |
22. Price |
Form DOT F 1700.7 (8-72) |
Reproduction of completed page authorized (art. 5/94) |
CHAPTER 2. EARLY-AGE PAVEMENT BEHAVIOR
2.1.1 Temperature and Moisture Changes
2.1.2 Development of Concrete Properties
2.2 EARLY-AGE INDICATORS OF LONG-TERM PERFORMANCE OF JPCP
2.2.1 Physical Mechanisms Governing Joint Opening at Early Ages
2.2.2 Effect of Joint Opening on Load Transfer Efficiency-JPCP without Dowels
2.2.3 Effect of Joint Opening on Load Transfer Efficiency-JPCP with Dowels
2.2.4 Distresses Influenced by Joint Opening-JPCP without Dowels
2.2.5 Distresses Influenced by Joint Opening-JPCP with Dowels
2.3 EARLY-AGE INDICATORS OF LONG-TERM PERFORMANCE OF CRCP
2.3.4 Factors Affecting Crack Spacing, Crack Width, and Steel Stress
2.4 EARLY-AGE INDICATORS OF LONG-TERM PERFORMANCE COMMON TO JPCP AND CRCP
CHAPTER 3. EARLY-AGE PAVEMENT DISTRESSES
3.1 PLASTIC SHRINKAGE CRACKING
3.2 CRACKING DUE TO THERMAL SHOCK
3.2.1 Distress Manifestation on JPCP
3.2.2 Distress Manifestation on CRCP
3.2.3 Recommended Precautions against Thermal Shock
CHAPTER 4. IMPACT OF EARLY-AGE BEHAVIOR ON LONG-TERM PERFORMANCE
4.1 FAULTING OF JPCP WITHOUT DOWELS
4.1.2 Materials Characterization
4.2 FAULTING OF JPCP WITH DOWELS
4.2.2 Materials Characterization
4.3.2 Materials Characterization
4.4.2 Materials Characterization
4.5.2 Material Characterization
4.5.7 Pavement Long-Term Performance History
4.6.2 Materials Characterization
4.7.2 Material Characterization
4.7.7 Pavement Long-Term Performance History
CHAPTER 5. HIPERPAV II INPUT PARAMETERS
5.2 MATERIALS AND MIX DESIGN INPUTS
5.2.4 Supplementary Cementitious Materials
5.2.7 PCC Modulus of Elasticity
5.3.1 Early-Age Climatic Inputs
5.3.2 Long-Term Climatic Inputs
5.4.2 Time of Day of Construction
5.4.3 Initial PCC Mix Temperature
5.4.4 Sawcutting Methods and Timing
5.4.5 Initial Subbase Temperature
5.5.3 Traffic Volume, Growth Rate, and Distribution
6.1 PROACTIVE JPCP CASE STUDY: TIME OF PLACEMENT
6.1.2 HIPERPAV II Analysis Strategy
6.2 POST-MORTEM JPCP CASE STUDY: FAULTING
6.3 PROACTIVE CRCP STUDY: SEASONAL TEMPERATURE DROP
6.4 POST-MORTEM CRCP CASE STUDY: AGGREGATE SELECTION
CHAPTER 7. HIPERPAV II USER'S MANUAL
7.1.2 Monthly Weather Data Screen
7.2.3 Materials and Mix Design Inputs
7.3 JPCP LONG-TERM COMPARATIVE ANALYSIS
7.3.1 Long-Term Strategy Information
7.3.6 Multiple Long-Term Comparative Strategies
7.3.7 Early-Age and Long-Term JPCP Analysis-Sample Scenario
7.4.1 Early-Age CRCP Strategies Section
7.4.3 Materials and Mix Design Inputs
7.4.6 Post 72-Hour Temperatures
7.4.8 Interpretation of CRCP Analysis
Figure 1. Conceptual representation of temperature development in a concrete element with time.
Figure 2. Conceptual effect of creep/relaxation on concrete stresses.(11)
Figure 3. Schematic of joint opening due to temperature drop (-T).
Figure 4. Schematic of joint in JPCP without dowels.
Figure 5. Schematic of JPCP after loss of aggregate interlock/load transfer at the joint.
Figure 6. Schematic of doweled joint in JPCP.
Figure 7. Conceptual reduction in mean crack spacing over time.(16)
Figure 8. Moisture gradient resulting from excessive moisture loss.
Figure 18. Plastic shrinkage cracking in concrete pavement.
Figure 19. Closely spaced cracks resulting from thermal shock in CRCP.
Figure 20. Longitudinal crack in CRCP due to thermal shock. Crack is enhanced for clarity.
Figure 22. Deflected pavement shape.
Figure 24. Schematic of faulting progression in JPCP without dowels, wheel on approach edge of slab
Figure 26. Photograph of faulting in JPCP.
Figure 27. Schematic of time growth of faulting for JPCP without dowels.
Figure 29. Schematic of ideal JPCP at set (dowel bar straight).
Figure 30. Schematic of curled JPCP connected by a dowel in bending (enlarged to show mechanism).
Figure 31. Schematic of wheel load on JPCP with dowels (dowel enlarged to show bearing stresses).
Figure 32. Schematic of time and traffic growth of faulting for JPCP with doweled joints.
Figure 34. Schematic of JPCP with a positive temperature gradient at set.
Figure 35. Schematic of JPCP with a negative temperature gradient at set.
Figure 38. Schematic of curled-up JPCP.
Figure 39. Schematic of top-down JPCP transverse cracking due to severe erosion of subbase.
Figure 40. Photograph of transverse crack. Transverse crack and joints enhanced for clarity.
Figure 41. Schematic of long-term performance of JPCP: Percent cracked slabs vs. time.
Figure 44. Photograph of corner breaks. Joints and corner breaks are enhanced for clarity.
Figure 45. Plan view of JPCP showing a corner break.
Figure 46. History of JPCP corner breaks.
Figure 48. Relative humidity as a function of slab depth.
Figure 49. Strength development as a function of slab depth.
Figure 50. Shear stresses as a function of slab depth.
Figure 51. Delamination mechanism.
Figure 52. Vertical cracks at delaminated areas leading to spalling distress.
Figure 53. Delamination spalling at a CRCP crack.
Figure 54. Round-shaped aggregates at a spalled CRCP crack.
Figure 55. Spalling progression as a function of evaporation rate.(16)
Figure 57. Schematic of deflection spalling mechanism.
Figure 58. Schematic of deflection spalling mechanism.
Figure 59. Photograph of deflection spalling on a CRCP.
Figure 60. Schematic of percent JPCP spalled joints/cracks vs. time.
Figure 61. Flowchart outlining impact of early-age input on long-term punchout distress of CRCP.
Figure 62. Schematic of position of tensile stresses in CRCP.
Figure 63. CRCP longitudinal and transverse stresses in CRCP as a function of crack spacing.
Figure 64. Typical CRCP punchout distress.
Figure 65. CRCP punchout progression with time.
Figure 66. Typical temperature development in the slab for concrete placement at 10 a.m.
Figure 67. Typical temperature development in the slab for concrete placement at 8 p.m.
Figure 68. Early-age stress-to-strength ratio as a function of time of placement.
Figure 69. Transverse cracking as a function of time of placement.
Figure 71. Early-age analysis results for 4.5-m joint spacing.
Figure 72. Early-age analysis results for 7.6-m joint spacing.
Figure 73. Predicted faulting for 4.5-m and 7.6-m joint spacing alternatives with no dowels.
Figure 74. Predicted faulting for 4.5-m and 7.6-m joint spacing alternatives with dowels.
Figure 75. Change in crack spacing with time for summer and winter placements.
Figure 77. Crack spacing distribution for pavements constructed during summer and winter.
Figure 78. Illustration of differences in cracking patterns for pavements A and B.
Figure 80. Average crack spacing after 1 year for aggregates with different CTE.
Figure 82. Project type selection screen for HIPERPAV II analysis.
Figure 83. Project information screen for HIPERPAV II analysis.
Figure 84. Geography screen for HIPERPAV II analysis.
Figure 85. Monthly weather data screen for HIPERPAV II analysis.
Figure 86. Strategy information screen for HIPERPAV II analysis.
Figure 88. Schematic of the geometry input in HIPERPAV II.
Figure 89. Dowel input screen.
Figure 90. Slab support input screen.
Figure 91. Available subbase types or subgrade conditions.
Figure 92. Cement input screen.
Figure 93. Available cement types in HIPERPAV II.
Figure 94. Heat of hydration help screen in HIPERPAV II.
Figure 95. PCC mix input screen.
Figure 96. Available coarse aggregate types in HIPERPAV II.
Figure 97. Available admixture types in HIPERPAV II.
Figure 98. Fly ash class drop-down menu.
Figure 99. PCC properties screen for early-age JPCP analysis.
Figure 100. Strength type drop-down menu.
Figure 101. Help icon under PCC properties screen.
Figure 102. Maturity data input screen.
Figure 103. Construction screen.
Figure 104. Drop-down menus and help screens under construction inputs.
Figure 105. Environment screen.
Figure 106. Drop-down menu for selection of climatic input screen to display.
Figure 107. Time-temperature distribution modified with the point feature.
Figure 108. Time-temperature distribution modified with the high-low feature.
Figure 109. Time-temperature distribution modified subjected to a cold front.
Figure 110. Analysis screen for early-age JPCP.
Figure 111. HIPERPAV II early-age analysis showing poor performance.
Figure 112. Evaporation rate analysis for early-age JPCP analysis.
Figure 113. Dowel analysis screen for early-age JPCP.
Figure 114. Strategy type pulldown menu.
Figure 115. Strategy information for long-term JPCP analysis.
Figure 116. Performance criteria screen for long-term JPCP analysis.
Figure 117. Load-transfer design for long-term JPCP analysis.
Figure 118. General traffic loading screen for long-term JPCP analysis.
Figure 119. Single axle load screen for long-term JPCP analysis.
Figure 120. Traffic loading growth rate screen for long-term JPCP analysis.
Figure 121. Analysis screen for long-term JPCP.
Figure 122. Drop-down menu for distress to plot.
Figure 123. Plot method drop-down menu.
Figure 124. Analysis results for the siliceous river gravel strategy.
Figure 125. Analysis screen for limestone strategy.
Figure 126. Selection of early-age strategies to compare.
Figure 127. Long-term strategy transverse cracking results.
Figure 128. Geometry screen for early-age CRCP analysis.
Figure 129. Steel design screen for early-age CRCP analysis.
Figure 130. Early-age construction screen for early-age CRCP analysis.
Figure 131. Post 72-hour air temperatures screen for early-age CRCP analysis.
Figure 132. Analysis screen for early-age CRCP.
Figure 133. Drop-down menu for time period to plot.
Figure 134. Help icon under CRCP analysis screen.
Figure 135. CRCP analysis with poor cracking characteristics.
Figure 136. HIPERPAV II report screen.
Figure 137. Tools drop-down menu in HIPERPAV II.
Figure 138. Mix constituents input screen in COMET.
Figure 139. Factor limits input screen in COMET.
Figure 140. Create trial batches command button in level 1 outputs.
Figure 141. Trial batches in kg/m3, gravimetric form.
Figure 142. Predicted responses for each trial batch.
Figure 143. Lab results screen.
Figure 144. Desirability function for 28-day strength.
Figure 145. Level 2 outputs—command to optimize mixes.
Figure 146. Optimum mixes sorted by desirability in volumetric form.
Figure 147. Optimum mixtures in terms of optimization factors.
Figure 148. Response predictions for optimum mixtures.
Figure 149. Individual response desirabilities for optimum mixtures.
Figure 150. Report view for printing purposes.
Table 1. Inputs for 11 a.m. and 7 p.m. times of placement strategies.
Table 2. Long-term inputs for aggregate selection sample scenario.