Investigation into material optimization and development for improved ravelling resistant porous asphalt concrete

Mo, Liantong; Huurman, M.; Woldekidan, M.F.; Wu, Shaopeng; Molenaar, A A A

doi:10.1016/j.matdes.2010.02.026

Cited by 83 publications

(27 citation statements)

References 12 publications

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“…The study asserts that aging somewhat improves a porous pavement resistance to cohesive (warm weather) raveling but dramatically reduces the ability of a porous asphalt to resist adhesive (cold weather) raveling (Mo et al 2009). These researchers suggest that a flexible binder with the ability to relax and resist permanent deformation is the best at resisting raveling (Mo et al 2010).…”

Section: History Of Ogfcmentioning

confidence: 99%

Laboratory Evaluation of Warm-Mix Open Graded Friction Course Mixtures

Wurst¹,

Putman

2013

J. Mater. Civ. Eng.

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Section: History Of Ogfcmentioning

confidence: 99%

Laboratory Evaluation of Warm-Mix Open Graded Friction Course Mixtures

Wurst¹,

Putman

2013

J. Mater. Civ. Eng.

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“…Bituminous materials are believed to heal themselves during rest periods and hot summers. Many contributions have been made to investigate this phenomenon by means of different approaches and at different levels, ranging from molecular to pavement level [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. For details of these approaches the reader is referred to the literature review made by Qiu [18].…”

Section: Introductionmentioning

confidence: 99%

Development of Autonomous Setup for Evaluating Self-Healing Capability of Asphalt Mixtures

Qiu

Molenaar

Ven

et al. 2012

Transportation Research Record: Journal of the Transportation R

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It is a well known fact that asphalt mixtures have self healing capabilities. Yet most of the self healing investigations are carried out using complex and time consuming fatigue tests. In order to investigate the self healing capability in a simple and efficient manner, a beam on elastic foundation test setup (BOEF) is proposed in this paper. With a notched asphalt concrete beam fully glued on a low modulus rubber foundation, the BOEF setup is able to control the self healing process autonomously including crack closure and healing at different rest periods and temperatures. A load-crack opening displacement (COD) curve was used for characterizing the self healing capability of the monotonic response with a loading-healingreloading procedure. In addition, small numbers of dynamic loads were also applied to the BOEF setup under different cracking and healing conditions. An apparent modulus of the BOEF asphalt beam was obtained based on the dynamic response of the COD. The results indicate that the self healing capability which is obtained in the monotonic tests is dependent on the healing time and healing temperature. The healing temperature has the largest effect of the two. Most of the apparent modulus of the BOEF asphalt beam recovers at the beginning of the self healing process. The influences of healing time and temperature are limited. As a result, the BOEF setup is proven to be a potential tool for the self healing investigation of asphalt mixtures.

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“…Healing is defined as a recovery of the stiffness and strength of bituminous materials, which suffered from damage, during rest periods and high temperatures. Till now, many contributions have been made to identify and model this phenomenon by means of different approaches and different levels of complexity ranging from molecular level till pavement level [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. For details of these approaches the reader is referred to the literature review made by Qiu [18].…”

Section: Introductionmentioning

confidence: 99%

Investigation of self healing behaviour of asphalt mixes using beam on elastic foundation setup

et al. 2011

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Self healing of asphalt mixes is known for more than four decades. However, it is a complex phenomenon which depends on the duration of the rest period, temperature, crack size, etc. In order to quantify the self healing behaviour of asphalt mixes, a test setup was proposed in this research using an asphalt beam on an elastic foundation. Within this setup, a notched asphalt beam was glued on a low modulus rubber foundation, and a symmetric monotonic load was applied with loading-unloading-healing-reloading cycles. The rubber foundation was used to avoid permanent deformation and to ensure a controllable healing process. Experimental results indicate that the beam on elastic foundation (BOEF) setup is capable for self healing investigations of asphalt mixes. The healing process was quantified by the recovery of the strength and the recovery of the crack opening displacement. The time, temperature and crack size dependency of the self healing behaviour were observed over the healing periods. Moreover, a self healing model was proposed to decompose the self healing phenomenon observed in the BOEF healing tests. It is shown that at the beginning of the healing period the delayed visco-elastic healing is the main reason of the recovery of the crack opening displacement and the viscous healing is important for healing after longer time/higher temperature.

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Investigation into material optimization and development for improved ravelling resistant porous asphalt concrete

Cited by 83 publications

References 12 publications

Laboratory Evaluation of Warm-Mix Open Graded Friction Course Mixtures

Laboratory Evaluation of Warm-Mix Open Graded Friction Course Mixtures

Development of Autonomous Setup for Evaluating Self-Healing Capability of Asphalt Mixtures

Investigation of self healing behaviour of asphalt mixes using beam on elastic foundation setup

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