00739774

Component

https://doi.org/10.3141/1568-07

http://scholar.google.com...ough&publication_year=1997

The development of a mechanistically based model (CRACK) that predicts the spacing of cracks in roller-compacted concrete (RCC) pavements due to restraint of drying shrinkage and thermal contraction is presented. The model considers the RCC pavement thickness, paving lane length, base friction characteristics, climatic time-temperature regimes, as well as the RCC drying shrinkage, coefficient of thermal contraction, strength gain, and modulus of elasticity. The model also determines the tensile stresses and displacements of the RCC slab along its length, from which the crack width is predicted. The CRACK program was used to predict the crack spacing and width at four RCC pavement field sites, and the predicted results were compared with field measurements. The model tends to overpredict the observed crack spacings, in part because of the simplifying assumptions used in the model development and the fact that the model does not consider fatigue stresses from warping, curling, or traffic-related loads, which cause additional cracking. However, the predicted crack spacing provides a basis for selecting joint spacings, and the predicted crack widths may help in the design of joint sealant reservoirs.

This paper appears in Transportation Research Record No. 1568, Pavement Rehabilitation and Design.

English

p. 52-64

1997

Transportation Research Record

0309059747

Figures (8) ; References (9) ; Tables (1)

Alternatives analysis; Computer models; Contraction; Cracking; Design; Dislocation (Geology); Field tests; Forecasting; Joints; Mechanical analysis; Mechanistic design; Modulus of elasticity; Pavements; Roller compacted concrete pavements; Shrinkage; Spacing; Tension; Thickness; Width

Crack spacing; Crack width; Field measurements; Joint spacing; Pavement thickness; Tensile stress

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Aug 25 1997 12:00AM

• COMPATIBLE APPROACH TO CONCRETE STRENGTH CHARACTERIZATION IN THE DESIGN AND CONSTRUCTION OF CONCRETE PAVEMENTS
• DETECTING STRIPPING IN ASPHALT CONCRETE LAYERS USING GROUND PENETRATING RADAR
• EARLY AGE PERFORMANCE OF CONTINUOUSLY REINFORCED CONCRETE PAVEMENT WITH DIFFERENT TYPES OF AGGREGATE
• EFFECT OF NONLINEAR TEMPERATURE GRADIENT ON CURLING STRESS IN CONCRETE PAVEMENTS
• ELASTIC PAVEMENT ANALYSIS USING INFINITE ELEMENTS
• FINITE-ELEMENT ANALYSIS OF PORTLAND CEMENT CONCRETE PAVEMENTS WITH CRACKS
• FLEXIBLE PAVEMENT OVERLAYS: THE STATE EXPERIENCE
• FRACTURE MECHANICS IN PAVEMENT ENGINEERING: THE SPECIMEN-SIZE EFFECT
• IMPLEMENTATION FEASIBILITY OF ASPHALT CONCRETE-OVERLAID PORTLAND CEMENT CONCRETE PAVEMENT REHABILITATION GUIDELINES
• IMPROVED METHODOLOGY FOR DEVELOPING A LONG-RANGE PAVEMENT REHABILITATION PROGRAM
• IN SITU EVALUATION OF FATIGUE DAMAGE GROWTH AND HEALING OF ASPHALT CONCRETE PAVEMENTS USING STRESS WAVE METHOD
• INNOVATIVE APPROACH TO FATIGUE CRACK PROPAGATION IN CONCRETE PAVEMENTS
• LABORATORY AND FIELD MOISTURE CONDITIONS FOR FLEXIBLE PAVEMENT
• MODIFIED PORTLAND CEMENT ASSOCIATION STRESS ANALYSIS AND THICKNESS DESIGN PROCEDURES
• NEURAL NETWORK ALGORITHMS FOR THE CORRECTION OF CONCRETE SLAB STRESSES FROM LINEAR ELASTIC LAYERED PROGRAMS
• PERFORMANCE OF A REHABILITATED D-CRACKED JOINTED PLAIN CONCRETE AIRFIELD PAVEMENT
• RELIABILITY DESIGN OF FLEXIBLE AIRFIELD PAVEMENTS: ELASTIC LAYERED METHOD
• SIMPLIFIED PROCEDURE FOR PREDICTION OF ASPHALT PAVEMENT SUBSURFACE TEMPERATURES BASED ON HEAT TRANSFER THEORIES
• STRUCTURAL EVALUATION AND ANALYSIS OF INSTRUMENTED IN-SERVICE CONCRETE PAVEMENTS SUBJECTED TO HEAVY DYNAMIC LOADS
• TECHNIQUES FOR SELECTING PAVEMENT REHABILITATION STRATEGIES: PENNSYLVANIA CASE STUDIES