00607720

Component

http://onlinepubs.trb.org...trr/1990/1286/1286-001.pdf

https://scholar.google.co...berg&publication_year=1990

Most maintenance activities on continuously reinforced concrete (CRC) pavements are related in one way or another to punchout distress. Over several years of observation of CRC pavement, several symptoms related to the structural aspects of punchout distress have been noted. These symptoms include, but are not limited to, close crack spacing, surface widening and spalling of transverse cracks, development of longitudinal cracking, loss of load transfer, and subbase and subgrade pumping. Literature reviews have elaborated on punchout-related factors with respect to pavement performance. However, the punchout mechanism relating the various factors is not completely defined. Some questions exist concerning the sequence of events leading to the loss of load transfer across transverse cracks as a prerequisite to the development of a punchout. This sequence of events relates to the role reinforcement plays in the punchout process and whether the loss of aggregate interlock requires rupturing of the steel. If rupturing of the steel occurs, the question is whether rupturing occurs before or after the loss of aggregate interlock. Factors related to punchout distress as noted by this investigation and others are reviewed and a possible mechanism of punchout distress is addressed.

This paper appears in Transportation Research Record No. 1286, Design and Evaluation of Rigid and Flexible Pavements 1990. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01411074

p. 1-13

1990

Transportation Research Record

0309050707

Figures (10) ; Photos (2) ; References (20) ; Tables (3)

Aggregates; Continuously reinforced concrete pavements; Cracking; Field studies; Load transfer; Longitudinal cracking; Pumping (Pavements); Reinforcing steel; Rock fracture; Spacing; Spalling; Transverse cracking

Crack spacing; Punchouts

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

TRIS, TRB, ATRI

Apr 30 1991 12:00AM

• AASHTO FLEXIBLE PAVEMENT DESIGN METHOD: FACT OR FICTION?
• AGGREGATE INTERLOCK: A PURE-SHEAR LOAD TRANSFER MECHANISM
• ASSESSMENT OF DAMAGE CAUSED TO PAVEMENTS BY HEAVY TRUCKS IN NEW ENGLAND
• COMPUTER SIMULATION OF LOAD EQUIVALENCE FACTORS
• CONTROL OF FAULTING THROUGH JOINT LOAD TRANSFER DESIGN
• EFFECT OF FRACTURE HEALING ON LABORATORY-TO-FIELD SHIFT FACTOR
• EFFECT OF LANE WIDENING ON LATERAL DISTRIBUTION OF TRUCK WHEELS
• EVALUATION OF THE SUBBASE DRAG FORMULA BY CONSIDERING REALISTIC SUBBASE FRICTION VALUES
• EVALUATION OF VARIABLES AFFECTING FLEXIBLE PAVEMENT THAWING FOR TIMING SPRING LOAD RESTRICTIONS
• EXTENSION OF LOAD EQUIVALENCY FACTORS FOR VARIOUS PAVEMENT CONDITIONS
• FATIGUE DAMAGE PROPERTIES OF ASPHALTIC CONCRETE PAVEMENTS
• FIELD PERFORMANCE AND EVALUATION OF THIN BONDED OVERLAYS
• HEAVILY LOADED TRAILERS: AN APPROACH TO EVALUATE THEIR INTERACTION WITH ASPHALT CONCRETE PAVEMENTS
• INFLUENCE OF AXLE GROUP SPACING ON PAVEMENT DAMAGE
• INTEGRATED COMPUTER MODEL TO ESTIMATE MOISTURE AND TEMPERATURE EFFECTS BENEATH PAVEMENTS
• MECHANISTIC DESIGN CONSIDERATIONS FOR PUNCHOUT DISTRESS IN CONTINUOUSLY REINFORCED CONCRETE PAVEMENT
• MICH-PAVE: A NONLINEAR FINITE ELEMENT PROGRAM FOR ANALYSIS OF FLEXIBLE PAVEMENTS
• OVERLAY DESIGN METHOD FOR FLEXIBLE PAVEMENTS IN ARIZONA
• PREDICTION OF DAMAGE TO FLEXIBLE PAVEMENTS IN SEASONAL FROST AREAS
• PRESTRESSED CONCRETE PAVEMENT: INSTRUMENTATION, BEHAVIOR, AND ANALYSIS OF HORIZONTAL MOVEMENTS
• PROBABILISTIC MODELING OF FLEXIBLE PAVEMENTS
• THAW WEAKENING OF PAVEMENT STRUCTURES IN SEASONAL FROST AREAS
• VALIDATION OF CONCRETE PAVEMENT RESPONSES USING INSTRUMENTED PAVEMENTS