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concrete testing characterisation of oxidative ageing in

concrete testing characterisation of oxidative ageing in

Concrete Testing: Characterisation of oxidative ageing in ...

2016-5-18  Characterisation of oxidative ageing in asphalt concrete Part 1: Ultrasonic velocity and attenuation measurements and acoustic emission response under thermal cooling M E McGovern, B Behnia, W G Buttlar and H Reis Submitted 19.05.13 Accepted 23.09.13 Figure 1. Pavement section at the Advanced Testing and

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Concrete Testing: Characterisation of oxidative ageing in ...

2016-5-18  Characterisation of oxidative ageing in asphalt concrete Part 2: Estimation of complex moduli M E McGovern, B Behnia, W G Buttlar and H Reis Submitted 19.05.13 Accepted 23.09.13 DOI: 10.1784/insi.2012.55.11.605

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Concrete Testing: Characterisation of oxidative ageing in ...

Home / Insight - Non-Destructive Testing and Condition Monitoring, Volume 55, Number 11 Concrete Testing: Characterisation of oxidative ageing in asphalt concrete – Part 2: Estimation of complex moduli Buy Article: $22.00 + tax (Refund Policy)

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Characterisation of oxidative ageing in asphalt concrete ...

2019-5-22  Characterisation of oxidative ageing in asphalt concrete – Part 2: Estimation of complex moduli M E McGovern, B Behnia, W G Buttlar and H Reis ... of the asphalt concrete specimen during testing. The specimen consists of a core extracted from a cylindrical gyratory compacted specimen (150 mm tall, 102 ±2 mm diameter). ...

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Characterisation of oxidative ageing in asphalt concrete ...

Home / Insight - Non-Destructive Testing and Condition Monitoring, Volume 56, Number 7 Characterisation of oxidative ageing in asphalt concrete using a non-collinear ultrasonic wave mixing approach Buy Article:

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Characterisation of oxidative ageing in asphalt concrete ...

Furthermore, to eliminate the need for traditional mechanical testing during the estimation of complex moduli, frequencydependent ultrasonic measurements must also be carried out. Results indicate that complex moduli are sensitive to the level of ageing in asphalt concrete mixtures.

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Characterisation of oxidative ageing in asphalt concrete ...

2016-5-18  Oxidative ageing is a key contributor to the deterioration of asphalt concrete pavements[1,2]. Exposure to environmental conditions causes gradual oxidative ageing of the asphalt concrete, where the highest aged material is located at the surface, while the material at the bottom of the pavement is significantly less aged.

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Characterisation of oxidative ageing in asphalt concrete ...

Characterisation of oxidative ageing in asphalt concrete – Part 2: Estimation of complex moduli Insight-Non-Destructive Testing and Condition Monitoring Journal, 2013 Behzad Behnia

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Characterisation of oxidative ageing in asphalt concrete ...

A study to assess oxidative ageing of asphalt concrete using non-collinear wave mixing of two dilatational waves is presented. Criteria were used to assure that the detected scattered wave originated via wave interaction in the asphalt concrete and not from non-linearities in the testing equipment.

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Characterisation of oxidative ageing in asphalt concrete ...

ageing of the uncompacted loose asphalt concrete mixtures was performed by placing the loose mixtures in an oven at 135ºC for 0, 12, 24, 28, 32, 36, 48, 60 and 72 h.

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Characterisation of oxidative ageing in asphalt concrete ...

Home / Insight - Non-Destructive Testing and Condition Monitoring, Volume 56, Number 7 Characterisation of oxidative ageing in asphalt concrete using a non-collinear ultrasonic wave mixing approach Buy Article:

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Characterisation of oxidative ageing in asphalt concrete ...

Asphalt concrete mixtures with different levels of oxidative ageing, prepared by oven-ageing the mixture at 135°C for different amounts of time, were used to study the effects of oxidative ageing upon the ultrasonic velocity and attenuation measurements.

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Characterisation of oxidative ageing in asphalt concrete ...

A study to assess oxidative ageing of asphalt concrete using non-collinear wave mixing of two dilatational waves is presented. Criteria were used to assure that the detected scattered wave originated via wave interaction in the asphalt concrete and not from non-linearities in the testing equipment.

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Characterization of oxidative aging in asphalt concrete ...

Characterization of oxidative aging in asphalt concrete pavements using its complex moduli March 2014 Proceedings of SPIE - The International Society for Optical Engineering 9064:90641Q

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(PDF) Characterization of oxidative aging in asphalt ...

Asphalt concrete mixtures with different levels of oxidative ageing, prepared by oven-ageing the mixture at 135ºC for different amounts of time, were used to study the effects of oxidative ageing ...

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Field estimation of oxidative ageing in asphalt concrete ...

To facilitate the estimation of the state of oxidative ageing of the top material layer of asphalt concrete pavements, a two-dimensional 'oxidative-ageing non-linear characterisation curve', which uniquely illustrates the non-linear response of asphalt concrete mixtures with increasing levels of oxidative ageing

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Estimation of oxidative ageing in asphalt concrete ...

2016-5-18  the level of oxidative ageing that the pavement has undergone. In a previous study[3], a technique involving the use of non-collinear wave mixing of bulk ultrasonic waves was presented as a means to non-destructively evaluate the oxidative ageing in asphalt concrete. It was demonstrated that the technique can be used successfully to

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Insight - Non-Destructive Testing and Condition

Concrete Testing: Characterisation of oxidative ageing in asphalt concrete – Part 1: Ultrasonic velocity and attenuation measurements and acoustic emission response under thermal cooling pp. 596-604(9) Authors: McGovern, M E; Behnia, B; Buttlar, W G; Reis, H

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Oxidative Aging - an overview ScienceDirect Topics

The PAV test covers the accelerated oxidative ageing of bitumen by means of pressurized air and elevated temperature in a pressurized ageing vessel. This test method is intended to simulate in-service oxidative ageing of bitumen. Bitumen used in the PAV is first aged by RTFOT or TFOT in order to simulate the short-term thermal-oxidative ageing.

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Preliminary results on thermo-oxidative ageing of multi ...

2009-7-1  Characterisation of the aged composite includes FTIR, microscopy, weight loss measurements, DMA, compression and SBS tests. Thermo-oxidative ageing leads to oxidation and cracking of the laminates surfaces, weight loss and decrease of both compression and SBS failure strengths. The glass transition temperature remains constant.

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Insight - Non-Destructive Testing and Condition

Concrete Testing: Characterisation of oxidative ageing in asphalt concrete – Part 1: Ultrasonic velocity and attenuation measurements and acoustic emission response under thermal cooling pp. 596-604(9) Authors: McGovern, M E; Behnia, B; Buttlar, W G; Reis, H

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Estimation of oxidative ageing in asphalt concrete ...

Request PDF Estimation of oxidative ageing in asphalt concrete pavements using non-collinear wave mixing of critically-refracted longitudinal waves A study using non-collinear ultrasonic wave ...

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Estimation of oxidative ageing in asphalt concrete ...

A study using non-collinear ultrasonic wave mixing of subsurface longitudinal waves for the assessment of oxidative ageing in asphalt concrete samples with increasing levels of oven ageing is presented. The use of subsurface waves allows for non-destructive interrogation of bituminous structures when only one side of the test specimen is ...

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Behzad Behnia Clarkson University - Academia

Characterisation of oxidative ageing in asphalt concrete – Part 2: Estimation of complex moduli more by Behzad Behnia The estimation of the dynamic Young’s (uniaxial) and shear complex moduli based upon ultrasonic measurements are presented.

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Effect of oxidative aging on binder fatigue performance ...

Because oxidative ageing occurs within the asphalt binder phase of asphalt concrete, this paper focuses on the relative performance of WMA and HMA binders at various ageing levels and compares ...

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An Experimental Approach for Characterisation of

2021-8-4  In this paper, a method for the detection of concrete damage under three bending test using Wheatstone bridge concept is presented. The damage is detected by monitoring a change in voltage drop (ΔV) at the Wheatstone bridge. Good correlations between crack opening and voltage drop and between damage variable and voltage drop were observed. Results of these tests confirmed that the voltage ...

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Preliminary results on thermo-oxidative ageing of multi ...

2009-7-1  Characterisation of the aged composite includes FTIR, microscopy, weight loss measurements, DMA, compression and SBS tests. Thermo-oxidative ageing leads to oxidation and cracking of the laminates surfaces, weight loss and decrease of both compression and SBS failure strengths. The glass transition temperature remains constant.

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Evaluation of Binder Aging and Its Influence in Aging of ...

2017-1-4  of mixture fatigue decline as a function of binder oxidative hardening in both the field and laboratory, and measurements of maintenance treatment effectiveness at retarding binder oxidative hardening. 17. Key Words Asphalt, Asphalt Durability Specification, Asphalt Concrete Long-Term Performance, Asphalt

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Exploring the oxidative mechanisms of bitumen after ...

2021-6-28  2.2. Ageing simulations. The oxidative ageing in the lab was simulated for the short term-ageing by the rolling thin film oven test (RTFOT) according to EN 12607-1 and for the long-term ageing with the pressurised ageing vessel (PAV) according to EN 14769 .Typically for RTFOT, 35 g of unaged virgin bitumen are placed in each bottle inside a rotating carousel for 75 min, where temperature and ...

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Role of moisture in photo-ageing -macromolecular ...

2021-4-1  The T g values increased under both ageing conditions, but the trend in wet photo-ageing was mitigated in the later stage of ageing compared to dry photo-ageing. Larché, Bussière, and Gardette [ 16 ] reported an increase in the T g values and micro-hardness ( H v ) in photo-oxidative ageing for similar systems; a strong correlation was also ...

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