Use of image analysis for the evaluation of rolling bottle tests results

Lantieri, Claudio; Lamperti, Riccardo; Simone, Andrea; Vignali, Valeria; Sangiorgi, Cesare; Dondi, Giulio; Magnani, Michele

doi:10.1016/j.ijprt.2016.11.003

Cited by 23 publications

(12 citation statements)

References 13 publications

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“…A number of technical observations were made based on the present research, previous trials, and the experiences of other researchers [ 51 , 52 , 53 , 54 , 55 , 56 , 57 ]: Repeatable lighting conditions with uniform lighting and mitigation of shadows are recommended; Careful selection and preparation of the workplace is required to mitigate color contaminated light reflections (e.g., blue color from the sky, other colors from clothes, furniture, etc. ); Precise arrangement of the aggregate particles without visible gaps is highly recommended for reliable classification of the reflective surfaces of asphalt binder; when gaps are present, the background reflects off the asphalt binder, which makes it difficult to distinguish from the binder, regardless of the background color; When artificial lighting is used and color analysis is made, use of lighting with high color reproduction index (CRI) is advised.…”

Section: Discussionmentioning

confidence: 96%

“…Based on previous trials and the experiences of other researchers [ 51 , 52 , 53 , 54 , 55 , 56 , 57 ], a methodology for acquiring high-quality photographic data was developed, main principles of which included: Image acquisition under repeatable, controlled, artificial lighting using a ring light; Use of a distinct background color for ease of its removal in post-processing, should it be necessary; Placing the sample aggregates without gaps for mitigating the background reflections; Each sample was photographed once, then it was flipped, and its underside was photographed again to obtain more data per sample; this also would decrease any potential bias of the initial sample arrangement. …”

Section: Methodsmentioning

confidence: 99%

“…All mentioned tests exhibit disadvantages, e.g., strong mechanical action in the rolling bottle method, long testing time, and weak differentiation of static tests, while the boiling water methods are troublesome and may be inaccurate due to the use of calibration curves and chemical reagents [ 50 ]. A number of authors have used digital image analysis for assessing the results of these tests with great accuracy and confidence [ 51 , 52 , 53 , 54 , 55 , 56 , 57 ].…”

Section: Introductionmentioning

confidence: 99%

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A Study of Adhesion in Foamed WMA Binder-Aggregate Systems Using Boiling Water Stripping Tests

Chomicz-Kowalska

2021

Materials

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The paper investigates the phenomena of adhesion in binder-aggregate systems produced to reflect warm-mix asphalt with water-foamed bitumen. The investigated materials included limestone and quartzite aggregates and a total of four asphalt binders: 50/70 and 45/80–55 bituminous binders obtained from two sources. The adhesive bonding between the asphalt binders and aggregates was evaluated in boiling water stripping tests, which results were quantified using digital image analysis. The bituminous binders were additionally tested for their dynamic viscosities, and their chemical composition was probed using FTIR spectroscopy. The tests were carried out using traditional liquid and foamed bituminous binders on samples prepared at temperatures characteristic of hot-mix asphalt and warm-mix asphalt production (20 °C decrease). The use of foamed binders yielded higher values of residual asphalt binder coverage of the aggregates. Limestone aggregates provided superior adhesion, with the lowest result amounting to approximately 88%, while with quartzite aggregates, the results ranged from approximately 40% to 87%. The refinery from which the asphalt binders were sourced had a significant influence on the results; however, the additional rheological and chemical analyses were insufficient to explain those differences. It was concluded that the process of asphalt binder foaming, per se, may have a beneficial impact on the resistance of the asphalt binder-aggregate system to the action of water.

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Section: Discussionmentioning

confidence: 96%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Study of Adhesion in Foamed WMA Binder-Aggregate Systems Using Boiling Water Stripping Tests

Chomicz-Kowalska

2021

Materials

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“…In some recent studies, attempts have been made to replace eye observation with the digitally processed images using different software like Image J and Image Pro Plus. However, the problem is that one has to make special arrangements for image capturing, including enhanced lighting and placement of aggregate on a special platform during image capture [9,10].…”

Section: Introductionmentioning

confidence: 99%

Application of image analysis tools in Matlab to better estimate the degree of binder coverage in rolling bottles test

Zaidi

Grenfell

Airey

et al. 2020

Road Materials and Pavement Design

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In asphalt mixture, a strong affinity between binder and aggregates is of prime importance, especially under conditions susceptible for moisture damage. To improve this affinity between binder and aggregates various additives and modifiers have been identified by the researchers across the globe. Among all the available additives or modifiers, hydrated lime has been reported as one of the best, which can be used to enhance the affinity between bitumen and aggregates. This study attempts to quantify the affinity of hydrated lime modified mastics with different aggregates under moisture conditions. Various techniques are available for the affinity assessment between binder and aggregates, with the rolling bottle test (RBT) reported as one of the best empirical techniques which is used worldwide.In the RBT test the assessment for affinity is made through visual inspection by two experienced operators as per a standard procedure which can also be the major drawback of this technique. An effort has been made to reduce this deficiency in the method and to make the RBT a more reliable and repeatable means of measuring the affinity between aggregate and binder in the presence of water. This has been done using image analysis techniques with no special setup, employing the Matlab program. The results after image analysis were compared to the results of visual observation and both were found to be very similar to each other. Hence the RBT can now be used confidently for the comparison of different binder/aggregate combinations. The beneficial effects of HL addition were clearly quantified with granite, basalt and greywacke aggregates, but limestone aggregates did not respond to the effect of HL addition when tested in the RBT. Based on the results of the RBT test, 10% HL substitution was found to be more efficient than a 20% HL substitution, which gave very similar results to 10% HL substitution in most of the studied combinations.

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“…The specimens after boiling are visually classified based on five-level criteria, which are not quantified criteria and could be subjective. Recently, image analysis method was concerned to provide quantitative evaluation of rolling bottle test instead of visual observation only [ 27 ]. Hence, the image analysis was combined with the traditional test in this study to investigate the effectiveness of plant ash treatment on interface bonding.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Asphalt-Aggregate Adhesion Using Plant Ash Byproduct

et al. 2019

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The adhesion bonding between asphalt and aggregate significantly influences field performance and durability of asphalt pavement. Adhesion promoters are typically used to improve asphalt-aggregate bonding and minimize moisture-related pavement damage, such as cracking and raveling. This study evaluated the effectiveness of plant ash byproduct as adhesion promoter to improve asphalt-aggregate adhesion performance. Three commonly used aggregate types (granite, basic rock, and limestone) and two asphalt binder types were used in laboratory testing. A modified stripping test method was developed to evaluate test results with image analysis and measurement of asphalt film thickness. The contact angle test and scanning electron microscopy (SEM) with energy disperse spectroscopy (EDS) were conducted. Test results showed that plant ash lixivium significantly improved asphalt-aggregate adhesion. Among three aggregate types, granite yielded the worst asphalt-aggregate adhesion for both control and treated specimens. The effectiveness of adhesion promotion varied depending on the type of asphalt or aggregate and temperature. The SEM/EDS observations showed that the mesh-like crystalline was formed at the interface between asphalt binder and aggregate in the treated specimen, which was believed to enhance the interfacial bonding and prevent asphalt film peeling off from aggregate.

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Use of image analysis for the evaluation of rolling bottle tests results

Cited by 23 publications

References 13 publications

A Study of Adhesion in Foamed WMA Binder-Aggregate Systems Using Boiling Water Stripping Tests

A Study of Adhesion in Foamed WMA Binder-Aggregate Systems Using Boiling Water Stripping Tests

Application of image analysis tools in Matlab to better estimate the degree of binder coverage in rolling bottles test

Improvement of Asphalt-Aggregate Adhesion Using Plant Ash Byproduct

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