Effects of Early Traffic Loading on a Bonded Concrete Overlay

Huddleston, Jeffrey Lance; Fowler, David W.; McCullough, B. Frank · 1995 · ROSA P / University of Texas at Austin. Center for Transportation Research

archive: archived pipeline: cataloged verified

Get this paper ↗ (full text — opens at the source; we link to it, we don't host it)

Summary

This study investigates the long-term effects of early traffic loading on bonded concrete overlays (BCOs), a pavement rehabilitation method designed to minimize costs and traffic disruption. The research was motivated by the need to rehabilitate aging highway infrastructure, specifically a section of Interstate Highway 10 in El Paso, Texas, while allowing for rapid lane reopening within twenty-four hours. The primary objective was to determine if subjecting young BCOs to traffic loads would compromise their fatigue life or structural integrity compared to fully cured overlays. The experimental program involved the development of concrete mix designs capable of rapid strength gain, utilizing standard Portland cement with superplasticizers or blended cements. Seven beam specimens were constructed with overlays ranging in age from twelve hours to seven days at the time of testing. These specimens underwent fatigue testing to simulate traffic loading, with researchers monitoring the progression of beam deflections and cracking throughout the tests. The study also evaluated interface bond strength and the development of compressive and flexural strength in the overlay concrete under various curing conditions. Results indicated that rapid strength and stiffness gain in the overlay concrete effectively minimized fatigue damage in young BCOs. Specifically, beams loaded at twelve hours of age exhibited final deflections and cracking patterns that compared favorably with those of fully cured beams. The data demonstrated that early-age traffic application was not detrimental to long-term pavement behavior, provided the concrete mix achieved sufficient early strength. The study further confirmed that proper curing and surface preparation were critical to maintaining interface bond capacity, which developed rapidly enough to withstand early stresses. The findings support the feasibility of expedited paving strategies using BCOs, allowing for traffic return within twenty-four hours without sacrificing long-term performance. This approach offers a viable solution for urban highway rehabilitation where minimizing traffic disruption is a priority. The research provides empirical evidence that rapid-strength concrete mixes can mitigate the risks associated with early loading, thereby validating the use of BCOs in high-traffic environments.

Key finding

Final deflections and cracking for beams loaded at twelve hours compared favorably with fully cured beams, indicating that traffic application at early ages is not detrimental to long-term pavement behavior.

Methodology

lab_experiment

Sample size: 7

Provenance

The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (6 acquisition events logged).

Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

Topics

Ranked by relevance to this paper. Hover a topic for its definition.

• road surface friction