Influence of different roller compaction modes on asphalt mix performance

Plati, Christina; Georgiou, Panos; Loizos, Andreas

doi:10.1080/10298436.2014.925552

Cited by 18 publications

(6 citation statements)

References 6 publications

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“…These results indicate that the combined effect of steel slag and RA on the stiffness modulus is more pronounced at intermediate temperatures than at low temperatures. Moreover, all recycled mixtures, particularly those incorporating 40 and 50% RA, yield moduli values similar or greater than the typical values of dense-graded mixtures [ 30 ]. This demonstrates the ability of these mixtures to support traffic-induced stresses, thus contributing to the load-bearing capacity of pavements.…”

Section: Resultsmentioning

confidence: 99%

“…To fully characterize the mixtures’ performance, both mechanical and functional properties were evaluated, namely, moisture susceptibility, rutting resistance, stiffness modulus, fracture resistance, and surface macrotexture. For specimen fabrication, a steel-segmented roller compactor was used, which is believed to realistically reproduce the field compaction conditions and enables accurate assessment of the on-site characteristics of field compacted asphalt mixtures [ 29 , 30 , 31 ]. Laboratory specimens were compacted with the aim of achieving a 97% degree of compaction (corresponding to 12–13% air voids).…”

Section: Test Methods For Characterizing Asphalt Mixturesmentioning

confidence: 99%

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Characterization of Sustainable Asphalt Mixtures Containing High Reclaimed Asphalt and Steel Slag

Georgiou

Loizos

2021

Materials

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Policymakers are implementing the transition to a circular model in all economic sectors to drastically mitigate the effects of climate change. In this regard, the producers of paving products should promote the reuse and recycling of solid waste in the design of sustainable asphalt materials. This study evaluated the performance-based properties of three highly recycled mixtures for wearing courses of asphalt pavements containing steel slag and varying amounts (25, 40, and 50%) of fractionated reclaimed asphalt (RA). In addition, the mixtures incorporated a warm mix asphalt (WMA) organic additive to lower production temperatures compared to a reference hot mix asphalt (HMA). Based on the experimental results, the warm recycled asphalt mixtures show equivalent or better performance compared to HMA in terms of moisture susceptibility, stiffness, rutting and fracture resistance, and surface macrotexture. Therefore, the combined incorporation of RA and steel slag with WMA was proven to be an effective option in designing environmentally friendly and high-performance wearing course mixtures.

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Section: Resultsmentioning

confidence: 99%

Section: Test Methods For Characterizing Asphalt Mixturesmentioning

confidence: 99%

Characterization of Sustainable Asphalt Mixtures Containing High Reclaimed Asphalt and Steel Slag

Georgiou

Loizos

2021

Materials

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“…The use of asphalt concrete improves construction speed, save costs, and improve the quality of the road surface ( Liu et al, 2018a ; Nandi and Ransinchung, 2021 ; Zhu et al, 2021 ). Asphalt concrete also plays a key role in high-grade highways ( Plati et al, 2016 ; Karpushko and Bartolomei, 2017 ). Nowadays, it is widely used in the paving operations of urban roads, large freight yards, parking lots, docks, and airports.…”

Section: Literature Reviewmentioning

confidence: 99%

Data-Driven Platform Framework for Digital Whole-Process Expressway Construction Management

Chen

Zhang

Ni³

et al. 2022

Front. Neurosci.

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To increase the speed and efficiency of expressways construction, information management is being gradually introduced into the construction process. However, progress is limited due to the complexity of expressway engineering and application limitations of information technology. Design and delivery are still dominated by paper files, and the management of test and inspection data is still relatively extensive. Research to date into digital expressway construction has been piecemeal and fragmented with a lack of research related to the whole construction process and a data-centric information management system yet to be realized. In response, through literature research and semi-structured interviews, the framework of a data-driven digital whole-process highway construction management platform was determined. A whole process management platform was established according to the framework, and the functional application of the proposed platform was explained through a case. The framework is proposed from the perspective of the whole process of collaborative sharing., which provides a new way of thinking to solve the problems existing in the current field of expressway construction whole-process management. It also provides data-centric management, electronic design and delivery, a refined workflow, and an efficient management process.

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“…Thus, the research on the morphological characteristics of coarse aggregate is mainly focused on indoor visual identification technology (AIMS, XCT, etc.). The proposed aggregate shape characterization index lacks pertinence, and the testing equipment cannot effectively provide services for asphalt mixture site construction control because of economy and portability (Plati et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Study on Quantitative Characterization of Morphological Characteristics and High Temperature Performance Evaluation of Coarse Aggregate Based on Computer Vision

2021

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The morphological characteristics of aggregate include outline shape, angularity, and surface texture, which determine the mutual extrusion and friction between aggregates, and significantly affect the performance of asphalt pavement. At present, the research on the morphological characteristics of coarse aggregate is mainly focused on indoor visual identification technology (AIMS, XCT, etc.), in which the applicability of the proposed aggregate shape characterization index is weak, and these instruments could not serve the practical engineering well. In this article, the Coarse Aggregate Morphological Identification System (CAMIS) is developed based on computer vision technology, and the system can recognize the shape features of aggregates above 2.36 mm particle size and carry out uninterrupted feeding and removal based on the mechanical arm system, which can realize large sample detection. Based on CAMIS aggregate identification system and laboratory tests (rutting test, dynamic modulus test, and penetration shear test), the shape identification and performance test of aggregate samples from construction site are carried out, and an aggregate performance evaluation index, CEI, suitable for high-temperature areas is proposed in combination with the improved response surface method. The processing parameters of vertical shaft impact aggregate crusher are optimized based on the CEI index, and the recommended processing parameters are verified by laboratory tests. The results show that the morphological characteristics of coarse aggregate affect the high temperature performance in order angularity, needle flake, axial coefficient, and convexity. The combination of processing parameters of vertical axis impact crusher is recommended to be of 45 m/s rotational speed, 3 t/h feed quantity, and 30% air intake. Verified by laboratory tests, the aggregate identification system CAMIS developed in this article and the proposed aggregate performance evaluation index, CEI, are highly reliable.

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Influence of different roller compaction modes on asphalt mix performance

Cited by 18 publications

References 6 publications

Characterization of Sustainable Asphalt Mixtures Containing High Reclaimed Asphalt and Steel Slag

Characterization of Sustainable Asphalt Mixtures Containing High Reclaimed Asphalt and Steel Slag

Data-Driven Platform Framework for Digital Whole-Process Expressway Construction Management

Study on Quantitative Characterization of Morphological Characteristics and High Temperature Performance Evaluation of Coarse Aggregate Based on Computer Vision

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