An experimental investigation of optimal asphalt–aggregate ratio for different compaction methods

Jiang, Yingjun; Fan, L.F.

doi:10.1016/j.conbuildmat.2015.05.054

Cited by 26 publications

(10 citation statements)

References 17 publications

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“…During the rolling operation of the vibratory roller, the eccentric block is driven by the vibrating shaft to rotate rapidly, forming the interference force of the vibration system of the “roller-compressed material.”. Under the action of the interference force, the vibrating wheel vibrates with a frequency equal to that of the interference force [ 31 – 34 ]. The vibration is further transferred to the material to be pressed, making the material gradually denser.…”

Section: Methodsmentioning

confidence: 99%

Investigation on cement-improved phyllite based on the vertical vibration compaction method

Jiang

Fan

et al. 2021

PLoS ONE

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The vertical vibration compaction method (VVCM), heavy compaction method and static pressure method were used to form phyllite specimens with different degrees of weathering. The influence of cement content, compactness, and compaction method on the mechanical properties of phyllite was studied. The mechanical properties of phyllite was evaluated in terms of unconfined compressive strength (Rc) and modulus of resilience (Ec). Further, test roads were paved along an expressway in China to demonstrate the feasibility of the highly weathered phyllite improvement technology. Results show that unweathered phyllite can be used as subgrade filler. In spite of increasing compactness, phyllite with a higher degree of weathering cannot meet the requirements for subgrade filler. With increasing cement content, Rc and Ec of the improved phyllite increases linearly. Rc and Ec increase by at least 15% and 17%, respectively, for every 1% increase in cement content and by at least 10% and 6%, respectively, for every 1% increase in compactness. The higher the degree of weathering of phyllite, the greater the degree of improvement of its mechanical properties.

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Section: Methodsmentioning

confidence: 99%

Investigation on cement-improved phyllite based on the vertical vibration compaction method

Jiang

Fan

et al. 2021

PLoS ONE

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“…Research results so far indicate that slab-compacted specimens are more closely correlated with cores sampled from the road surface than Marshall specimens [ 24 ]. Our research group proposes pavement materials with the Vertical Vibration Testing Method (VVTM) for asphalt mixtures by analyzing the compaction principle of vibratory compaction and deeply studies the maximum compaction capacity of all kinds of existing construction equipment [ 25 , 26 , 27 ]. Subsequently, the correlation between the VVTM specimen and the physical and mechanical properties of the laboratory-produced samples is evaluated.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Evaluation of a Vertical Vibration Testing Method for an SMA-13 Mixture

et al. 2020

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In order to simulate the on-site compaction conditions of a Stone Matrix Asphalt (SMA) mixture, The Vertical Vibration Testing Method (VVTM), Superpave Gyratory Compactor (SGC), and Marshall method are used to test the SMA-13 mixture, and the physical and mechanical properties of the asphalt mixture designed by these three methods are tested. Subsequently, the influences of the molding method on the mechanical properties are compared. The influence of vibration compaction time on the volume parameters of the SMA mixture is studied. Following the heavy traffic compaction standards, the vibration compaction time of the SMA mixture is determined. The results show that the densities of the heavy Marshall specimen, VVTM specimen, and SGC specimen are 1.018 times, 1.019 times, and 1.015 times greater than that of the standard Marshall specimen, respectively. The passing rate of the 4.75 mm aggregate of the standard Marshall specimen is 29.9%, and that of the VVTM specimen and SGC specimen is 31.1% and 30.5%, respectively, while that of the heavy Marshall specimen is 34.5%. The mechanical strength of the specimen can be greatly improved as the density increases. On the other hand, by the same compaction work, the mechanical strength of the VVTM specimens can be increased by at least 7% compared with the heavy Marshall specimen. The mechanical strength of the VVTM specimen is increased by at least 22% compared with the standard Marshall specimen. The results also show that under the optimal asphalt-aggregate ratio and the same compaction work, the compressive strength and shear strength of the VVTM specimens are increased by at least 6% and 9%, respectively, compared with the Marshall specimens. In summary, the performance of the asphalt mixture designed by the VVTM is superior, providing a wider choice for future asphalt mixture design.

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“…Road workers in France, Switzerland and other countries have studied the effect of vibration molding by subjecting test specimens to lateral vibrations under a vertical load [16]. Thus far, VVTM has proven successful in designing road surface materials such as dense-graded asphalt mixtures and recycled emulsified asphalt mixtures [17][18][19][20][21], and road base materials such as cement stabilized macadam [22][23][24][25]. All of these materials achieve high road performance.…”

Section: Introductionmentioning

confidence: 99%

Performance of Stone Mastic Asphalt Mixtures Fabricated by Different Compaction Methods

et al. 2020

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In this study, stone mastic asphalt (SMA-13) mixtures were designed using three methods, namely the vertical-vibration testing method (VVTM), Marshall method, and superpave gyratory compactor method (SGC). The performances of SMA-13 designed by all three methods were measured and compared. Results show that the optimal asphalt content of the asphalt mixture was 5% lower in the VVTM-designed SMA-13 than in the Marshall-designed and SGC-designed asphalts mixture. In comparison with the Marshall- and SGC-designed asphalts mixture, the VVTM-designed SMA-13 exhibited higher density (2.4% and 2.2% increase, respectively), mechanical properties (32% and 13% increase, respectively), high-temperature rut resistance (30% and 8% increase, respectively), low-temperature crack resistance (20% and 17% increase, respectively), water stability (4% and 3% increase, respectively), and fatigue life (at least 33% and 9% increase, respectively). The VVTM-designed SMA-13 exhibited a deeper short-term aging degree than the other SMA-13 specimens, but a smaller long-term aging degree. In summary, the SMA-13 mixture designed by the VVTM method delivered a better road performance and durability than the traditional design method, enabling improved designs of SMA mixtures.

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An experimental investigation of optimal asphalt–aggregate ratio for different compaction methods

Cited by 26 publications

References 17 publications

Investigation on cement-improved phyllite based on the vertical vibration compaction method

Investigation on cement-improved phyllite based on the vertical vibration compaction method

Laboratory Evaluation of a Vertical Vibration Testing Method for an SMA-13 Mixture

Performance of Stone Mastic Asphalt Mixtures Fabricated by Different Compaction Methods

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