01044190

Component

https://doi.org/10.3141/1991-13

http://scholar.google.com...sson&publication_year=2007

The current specifications for selecting crack sealants correlate poorly with actual field performance. To address this issue and assist in predicting the low-temperature properties of hot-poured bituminous crack sealants, a modified direct tensile tester method has been developed. Sample geometry is modified to accommodate testing sealants. A sensitivity analysis considering various loading rates, sample lengths, and cross-section areas was conducted to define both optimized specimen geometry and testing protocol. Two types of sealants, having a wide range of rheological behaviors (one polymer-modified and one having crumb rubber), were tested at low temperature. Results showed that the rich polymer–modified sealant has a high resistance to failure compared with the sealant with crumb rubber–modified. Each sealant was tested at the lowest corresponding expected service temperature. A performance parameter, strain energy density, was proposed to differentiate crack sealant material in the laboratory.

01077199

English

pp 109-118

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309104166

Print

Figures (8) ; References (10) ; Tables (4)

Bituminous materials; Bituminous mixtures; Cross sections; Crumb rubber; Low temperature; Pavement maintenance; Pavement performance; Pavements; Rheology; Sealing compounds

Crack sealants; Direct tensile test; Hot pour sealants

Highways; Maintenance and Preservation; Materials; Pavements; I31: Bituminous Binders and Materials; I60: Maintenance

TRIS, TRB, ATRI

Feb 8 2007 7:12PM

• Best Practices for the Rehabilitation and Moving of Historic Metal Truss Bridges
• Development of an Index for Concrete Bridge Deck Management in Utah
• Early Thermodegradation of Bituminous Sealants Resulting from Improper Installation: Field Study
• Electrochemical Chloride Extraction Method to Control and Mitigate Corrosion in Rebar Embedded in Concrete: Laboratory Testing and Field Evaluation
• Estimation of Representative Capital and Maintenance Costs for Canadian Roads
• Evaluating Management Decisions to Reduce Environmental Risk of Roadside-Applied Herbicides
• Evaluation of the Current State of Flexible Overlay Design for Rigid and Composite Pavements in the United States
• Laboratory Evaluation of Color Polymer Concrete Pavement with Synthetic Resin Binder for Exclusive Bus Lanes
• Modeling Highway Infrastructure Maintenance Schedules with Budget Constraints
• Pareto Analysis for Multicriteria Optimization of Bridge Preservation Decisions
• Performance Measures for Enhanced Bridge Management
• Preservation Effects on Performance of Bituminous over Aggregate Base Pavements in Minnesota
• Processes and Techniques for Rapid Bridge Replacement After Extreme Events
• Ranking Procedure Based on Statistical Hypothesis Testing