Selection of a performance test to assess the cracking resistance of asphalt concrete materials

Sreedhar, Shashwath; Coleri, Erdem; Haddadi, Sogol Sadat

doi:10.1016/j.conbuildmat.2018.05.258

Cited by 31 publications

(8 citation statements)

References 7 publications

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“…In a previous research study performed at Oregon State University, SCB test was selected as the most effective cracking experiment to characterize asphalt mixtures used in Oregon ( 20 ). Therefore, SCB tests were conducted in this study to determine the cracking resistance of asphalt mixtures and to determine a suitable threshold for the test’s output parameter (FI) to be used as an acceptance criterion in the proposed balanced asphalt mixture design process.…”

Section: Test Methodsmentioning

confidence: 99%

Development of a Balanced Mix Design Method in Oregon to Improve Long-Term Pavement Performance

Sreedhar

Coleri

Obaid

et al. 2021

Transportation Research Record: Journal of the Transportation R

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Most state Departments of Transportation (DOTs) and asphalt contractors do not think that commonly used asphalt mixture properties, such as voids in mineral aggregate (VMA), voids filled with asphalt (VFA), and dust-to-binder ratio, reflect the long-term performance of asphalt mixtures. In addition, there are several new additives, polymers, rubbers, and high-quality binder types incorporated into asphalt mixtures today. Volumetric mixture design methods are not capable of capturing the benefits of using all these new technologies on asphalt mixture performance. Furthermore, the interaction of virgin binders with reclaimed asphalt pavement (RAP) mixtures with high binder replacement contents and the level of RAP binder blending into the asphalt mixture are still not well understood. Because of all these complications related to the more complex structure of asphalt mixtures, simple volumetric evaluations to determine the optimum binder content may not result in reliable asphalt mixture designs. Two volumetrically identical mixtures may provide completely different rutting and cracking performance according to laboratory tests. For all these reasons, in this study performance tests for rutting and cracking are incorporated into current asphalt mixture design methods to make it possible to validate or revise the optimum binder content determined by the volumetric mix design method (the only method currently used for asphalt mix design).

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Section: Test Methodsmentioning

confidence: 99%

Development of a Balanced Mix Design Method in Oregon to Improve Long-Term Pavement Performance

Sreedhar

Coleri

Obaid

et al. 2021

Transportation Research Record: Journal of the Transportation R

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“…Based on methodology from past research, a 15 mm ± 0.5 mm (0.6 ± 0.02 in.) notch was cut along the axis of symmetry using a table saw and a customized cutting jig developed at Oregon State University (OSU) ( 7 , 8 ).…”

Section: Experimental Plan Materials and Methodsmentioning

confidence: 99%

Impermeable Asphalt Concrete Layer to Protect and Seal Concrete Bridge Decks

Haynes

Coleri

Sreedhar

2019

Transportation Research Record: Journal of the Transportation R

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Deterioration of the concrete bridge deck is one of the most significant problems affecting the service life of bridges in the United States (U.S.). The early failure of asphalt pavement overlays on concrete bridge decks with spray-on waterproofing membranes has been recognized as a significant issue by the Oregon Department of Transportation (ODOT). Potential reasons for the failure of the asphalt overlays were thought to be the poor adhesion between the waterproofing membrane and the asphalt-wearing course, and the material properties of the asphalt layer. Moisture penetration into the asphalt overlay and standing water on the concrete bridge deck result in expansion and contraction at the interface on the bridge deck during freeze-thaw cycles. Expansion and contraction because of freeze-thaw cycles cause debonding at the interface and result in an increased rate of deterioration for the asphalt concrete overlay. Additionally, the de-icing salts used to prevent hazardous roadway surfaces in the winter permeate into the deck and cause corrosion of the steel reinforcement, weakening the structural integrity of the bridge. The main goal of this study is to develop an impermeable asphalt mixture with high cracking and rutting resistance that can seal and protect the concrete bridge deck by preventing water and de-icing salts from penetrating into the concrete deck. Permeability of developed asphalt mixtures was quantified by permeability testing and moisture sensor measurements. Rutting and cracking resistance of the developed impermeable asphalt mixture strategies were also evaluated by conducting flow number (FN) and semi-circular bend (SCB) tests in the laboratory.

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“…In the laboratory, the SCB test is widely used to investigate cracking performance of asphalt concrete [9,29,30]. In this paper, the SCB samples were acquired by drilling and cutting from the asphalt slabs.…”

Section: Scb Testsmentioning

confidence: 99%

The influence of asphalt ageing on induction healing effect on porous asphalt concrete

Liu²,

Tabaković³

et al. 2019

RILEM Tech Lett

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Induction healing is a proven technology which is able to improve the self-healing capacity of asphalt concrete. Healing is achieved via electromagnetic current produced by passing induction machine, where steel asphalt constituents heat up which in turn soften the bitumen in the asphalt layer, allowing it to flow and close cracks, repairing the damage. This paper reports on the study which investigated the influence of ageing on the healing capacity of Porous Asphalt (PA) concrete. Porous Asphalt concrete mix was prepared first, then subjected to an accelerated (laboratory) ageing process using a ventilated oven. In order to further evaluate the induction healing efficiency of asphalt concrete, Semi-circular bending (SCB) and healing cycles were performed on asphalt concrete specimens. The results show that with an increase of the ageing level of porous asphalt concrete, the induction healing efficiency decreases.

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Selection of a performance test to assess the cracking resistance of asphalt concrete materials

Cited by 31 publications

References 7 publications

Development of a Balanced Mix Design Method in Oregon to Improve Long-Term Pavement Performance

Development of a Balanced Mix Design Method in Oregon to Improve Long-Term Pavement Performance

Impermeable Asphalt Concrete Layer to Protect and Seal Concrete Bridge Decks

The influence of asphalt ageing on induction healing effect on porous asphalt concrete

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