01124248

Component

https://doi.org/10.3141/2098-09

http://scholar.google.com...vich&publication_year=2009

Although dowel bars are an essential design feature of jointed concrete pavements to prevent pumping and faulting, few studies dealing with the constructability of dowel alignment have been conducted. With the emergence of the Magnetic Imaging Tools (MIT) Scan-2 as a nondestructive, robust method of locating dowels, it is now possible to efficiently evaluate the construction quality of dowel bar placement without damaging the newly constructed pavement. A brief review is presented of the results of recent field studies aimed at examining the constructability of doweled joints in concrete pavements. The dowel bar alignment data collected in this study encompass a wide range of design and environmental conditions and show that alignment within reasonable levels—considering equipment, mix design, as well as workmanship and consistency—is achievable in the field. Distress and performance analyses show that within these levels of misalignment, the pavement performance is not significantly affected. However, misalignment at a greater level may not be detrimental to pavement performance, and therefore performance-based guidelines may be less strict than the constructability levels collected in this study. Nevertheless, the results shed light on the level of alignment that can be reasonably achieved in the field.

01138792

09-2825

English

pp 86-93

2009

Transportation Research Record: Journal of the Transportation Research Board

9780309126144

Print

Figures (6) ; References (13) ; Tables (3)

Alignment; Concrete pavements; Paving; Quality control; Tie bars

Magnetic Imaging Tools (MIT) Scan 2

Constructability; Dowel bars

Construction; Highways; Pavements; I52: Construction of Pavements and Surfacings

PRP, TRIS, TRB

Jan 30 2009 7:11PM

• Analyzing Hot-Mix Asphalt and Portland Cement Concrete Highway Construction Using Probabilistic Optimization for Profit
• Application of Uncertainty Analytic Hierarchy Process Method for Asphalt Pavement Construction Quality Control in China
• Asphalt Mix Design Optimization for Efficient Plant Management
• Design and Construction of Sustainable Pavements: Austrian and German Two-Layer Concrete Pavements
• Development of Decision Model for Selection of Appropriate Timely Delivery Techniques for Highway Projects
• Methods for Evaluating Longitudinal Joint Quality in Asphalt Pavements
• Priority-Ranking Workload Reduction Strategies to Address Challenges of Transportation Construction Inspection
• Quality Control–Quality Assurance Sampling Strategies for Hot-Mix Asphalt Construction
• Radio Frequency Identification Tracking Technology Applied to Testing of Transportation Construction Materials
• Strategies for Design and Construction of High-Reflectance Asphalt Pavements
• Temperature Behavior of Pervious Concrete Systems
• Testing and Performance Evaluation of Fixed Terrestrial Three-Dimensional Laser Scanning Systems for Highway Applications
• Use of Stay-in-Place Forms for Concrete Bridge Decks in Tennessee