Evaluation the effects of nanoclay on permanent deformation behavior of stone mastic asphalt mixtures

Ameri, Mahmoud; Mohammadi, Robab; Vamegh, Mostafa; Molayem, Mohammad

doi:10.1016/j.conbuildmat.2017.07.055

Cited by 51 publications

(17 citation statements)

References 21 publications

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“…Ameri et al [104] modified a SMA mixture (NMAS 9.5 mm) with 1%, 2%, 3%, and 4% cloisite-15A. For the mixture production, 6.7% binder content, limestone aggregates and limestone filer were used.…”

Section: Nanoclaymentioning

confidence: 99%

A Review of Nanomaterials’ Effect on Mechanical Performance and Aging of Asphalt Mixtures

et al. 2019

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This review addresses the effects of the modifications with nanomaterials, particularly nanosilica, nanoclays, and nanoiron, on the mechanical performance and aging resistance of asphalt mixtures. The desire for high-performance and long-lasting asphalt pavements significantly pushed the modification of the conventional paving asphalt binders. To cope with such demand, the use of nanomaterials for the asphalt binder modification seems promising, as with a small amount of modification an important enhancement of the asphalt mixture mechanical performance can be attained. Several studies already evaluated the effects of the modifications with nanomaterials, mostly focusing on the asphalt binder properties and rheology, and the positive findings encouraged the study of modified asphalt mixtures. This review focuses on the effects attained in the mechanical properties of the asphalt mixtures, under fresh and aged conditions. Generally, the effects of each nanomaterial were evaluated with the current state-of-art tests for the characterization of mechanical performance of asphalt mixtures, such as, permanent deformation, stiffness modulus, fatigue resistance, indirect tensile strength, and Marshall stability. Aging indicators, as the aging sensitivity, were used to evaluate the effects in the asphalt mixture’s aging resistance. Finally, to present a better insight into the economic feasibility of the analyzed nanomaterials, a simple cost analysis is performed.

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Section: Nanoclaymentioning

confidence: 99%

A Review of Nanomaterials’ Effect on Mechanical Performance and Aging of Asphalt Mixtures

et al. 2019

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“…From the previous literature [ 15 , 16 , 25 , 34 ], the appropriate basalt fiber content should exceed 0.5%. Additionally, based on the previous research [ 15 , 35 , 36 , 37 , 38 ], the optimum asphalt content of modified SMA mixtures can reach up to approximately 6.7%. In view of the added basalt fibers in this study varying from 3 to 9 mm, the basalt fiber content and asphalt-aggregate ratio were chosen for appropriate ranges accordingly.…”

Section: Methodsmentioning

confidence: 96%

Design Optimization of SBS-Modified Asphalt Mixture Reinforced with Eco-Friendly Basalt Fiber Based on Response Surface Methodology

2018

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This paper investigates the effects of basalt fiber content, length and asphalt-aggregate ratio on the volumetric and strength properties of styrene-butadiene-styrene (SBS)-modified asphalt mixture reinforced with eco-friendly basalt fiber. An experimental scheme was designed to optimize three preparation parameters for the Marshall test indices based on response surface methodology (RSM). The results showed that basalt fiber content presents a more significant effect on air voids, voids in mineral aggregates and voids filled with asphalt. Basalt fiber length is more related to Marshall stability, and flow value exhibits a significant variation trend with asphalt-aggregate ratio. The optimization of preparation parameters is determined as follows: basalt fiber content is 0.34%, length is 6 mm, asphalt-aggregate ratio is 6.57%, which possesses favorable and reliable accuracy compared with experimental results. Furthermore, basalt fiber reinforced asphalt binder and mixture were also studied, and it was found that basalt fiber can enhance the performance of asphalt binder and mixture in terms of cone penetration, softening point, force ductility, as well as pavement performance tests.

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“…e resistance of asphalt mixtures against plastic deformation can be quantitatively investigated by means of repeated load dynamic or cyclic creep test. Rutting resistance of asphalt mixture can be determined using dynamic creep tests; the results of which are presented as a curve showing cumulative strain versus number of cycles; the curve has 3 zones in the third one of which strain is considerably increased due to large deformations under repetitive loading; the number of this zone's starting cycle is called "flow number" which is a criterion for the investigation and assessment of rutting in asphalt mixtures ( [24,25]; NCHRP 465, 2002 [26]).…”

Section: Dynamic Creep Testmentioning

confidence: 99%

Investigating Effects of Nano/SBR Polymer on Rutting Performance of Binder and Asphalt Mixture

Ameri

Vamegh

Rooholamini

et al. 2018

Advances in Materials Science and Engineering

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Rutting is one of the most common distresses in flexible pavements and can affect vehicle controlling features. Although asphalt binder constitutes a small percentage of the asphalt mixture, its properties play a crucial role in pavement performance and its rutting resistance. One way of improving binder properties and rutting resistance is to use additives. In this research, nanoclay and SBR polymer have been simultaneously used to modify 60–70 penetration binder to study rutting resistance of binder and asphalt mixture. To this end, the storage stability, rotational viscosity, DSR, and RCR tests on binder and marshal stability were performed, and dynamic creep and wheel track tests on asphalt mix were performed to assess rutting performance. The test and statistical analysis results indicated that nanoclay has considerably positive impact on rutting and elastic deformation of neat and SBR-modified asphalt binder and mixture.

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Evaluation the effects of nanoclay on permanent deformation behavior of stone mastic asphalt mixtures

Cited by 51 publications

References 21 publications

A Review of Nanomaterials’ Effect on Mechanical Performance and Aging of Asphalt Mixtures

A Review of Nanomaterials’ Effect on Mechanical Performance and Aging of Asphalt Mixtures

Design Optimization of SBS-Modified Asphalt Mixture Reinforced with Eco-Friendly Basalt Fiber Based on Response Surface Methodology

Investigating Effects of Nano/SBR Polymer on Rutting Performance of Binder and Asphalt Mixture

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