Evaluation of red mud as filler in Brazilian dense graded asphalt mixtures

Lima, Mayara S. Siverio; Thives, Liseane Padilha

doi:10.1016/j.conbuildmat.2020.119894

Cited by 37 publications

(11 citation statements)

References 24 publications

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“…The sintering RM asphalt mastic has a larger complex modulus (

) and elastic recovery than the Bayer RM asphalt mastic, the cumulative creep strain is smaller, and the improvement in the high-temperature performance of the Sintering RM asphalt mastic is more significant [ 17 ]. Compared with the traditional LS asphalt mixture, the RM asphalt mixture exhibits higher tensile strength [ 27 ], while the water damage resistance performance of the RM asphalt mixture has decreased [ 28 ]. Researchers mainly focus on the impact of RM on the performance of asphalt mixtures and evaluate the performance of asphalt mastic through rheological methods.…”

Section: Introductionmentioning

confidence: 99%

Effect of Industrial Solid Waste as Fillers on the Rheology and Surface Free Energy of Asphalt Mastic

Ou,

Zhu,

Chen

et al. 2024

Materials

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The continuous growth of industrial solid waste production has generated many environmental problems. We evaluated the potential of industrial solid waste as a substitute filler in asphalt mastic, with the aim of increasing the use of sustainable road construction materials. In this study, X-ray fluorescence spectroscopy (XRF) and scanning electron microscopy (SEM) were used to characterize the oxide composition and micromorphology of limestone (LS), red mud (RM), steel slag (SS), and ground granulated blast-furnace slag (GGBFS). Four asphalt mastics containing LS, RM, SS, and GGBFS with a filler-to-binder weight ratio of one were prepared. An evaluation of the rheology and wetting of the solid-waste-filler asphalt mastic was conducted using a frequency sweep, temperature sweep, linear amplitude sweep (LAS), multiple stress creep and recovery (MSCR), and surface free energy (SFE) methods. The results showed that SS increased the complex modulus, elastic component of the asphalt mastic and decreased the nonrecoverable creep compliance at stress levels of 0.1 and 3.2 kPa, which improved the rutting resistance of the asphalt mastic and reduced deformation under high-temperature conditions. The RM and GGBFS increased the fatigue performance of the asphalt mastic under strain loading, enhanced its fatigue life, and maintained good performance under long-term loading. The dispersive component of the SFE parameter of the solid-waste-filler asphalt mastic was larger than the polar component for the largest share of the surface energy composition. The SFE of the asphalt mastic prepared from the industrial solid-waste filler was reduced; however, the difference was insignificant compared to the limestone asphalt mastic. Solid-waste-filler asphalt mastic has performance characteristics, and its actual application can be based on different performance characteristics to select an appropriate solid-waste filler. The results of this study provide new technological solutions for solving the utilization rate of solid waste materials and sustainable road construction in the future.

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“…The sintering RM asphalt mastic has a larger complex modulus (

Section: Introductionmentioning

confidence: 99%

Effect of Industrial Solid Waste as Fillers on the Rheology and Surface Free Energy of Asphalt Mastic

Ou,

Zhu,

Chen

et al. 2024

Materials

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“…Nevertheless, one of the problems of RM recycling is that customers do not accept products made from waste materials, especially in the case of bauxite tailings, which are hazardous waste materials [17]. The utilization of RM in road bases and asphalt mixtures was reviewed and future research priorities were pointed out by Lima and Thives [18]; Rychkov, et al [19] intensified carbonate scandium leaching from bauxite red mud. (Liu, et al, 2014) [20] presented a completely different approach to RM recycling, where RM was treated as a valuable material for further extraction of metals and other elements.…”

Section: Introductionmentioning

confidence: 99%

Methanol Synthesis Catalyst Waste as the Principal Component of New Sustainable Cementless Concrete

Mymrin¹,

Alarcon²,

Guidolin³

et al. 2023

Catal Res

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Methanol synthesis catalyst (MSC) waste was applied as the principal component (till 70 wt.%) of sustainable ceramics in composites with bauxite processing waste (RM), and waste foundry sand (FS). The results of the initial components' chemical interaction studies by a complex of methods (XRD, SEM/EDS/mapping, AAS and LAMMA) during heating demonstrated the synthesis of amorphous glasslike new formation, their filling of pores and compaction of the ceramic’s structure. In this case, a strong chemical and mechanical binding of all heavy metals and other hazardous elements of the initial industrial waste occurs with their transfer to an insoluble in an acidic environment. The materials with the highest MSC contents have the highest axial resistance values ill 25.98 MPa after firing at 1050°C.

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“…Hence, the construction of asphalt pavement consumes a considerable amount of natural resources and causes many environmental problems. The development of new technologies to save natural resources [3][4][5][6][7][8][9][10][11] and protect the environment [12][13][14] is an important strategy for the sustainable development of roads. The use of solid waste, such as steel slag [4,6,7,10], reclaimed asphalt pavement (RAP) [4,15,16], construction waste [5,17,18], plastic [16,19,20], rubber [9,19,20], red mud [8], etc., to replace natural resources in the preparation of asphalt concrete has become increasingly popular, which can also help to protect the environment.…”

Section: Introductionmentioning

confidence: 99%

“…The use of construction waste as a filler for asphalt concrete is one such method [2,[22][23][24]. With the exception of aggregate, filler is also indispensable, although its content in asphalt concrete is usually less than 10% [8,25]. As China faces the considerable task of road construction, if asphalt concrete containing construction-waste-based filler can obtain satisfactory engineering performance, it could represent a simple method for the reuse of construction waste.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Construction Waste Recycled Powder as Filler in Asphalt Concrete

Guo

Chen

2022

Materials

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Processing construction waste into aggregate and reusing it in asphalt pavement is beneficial in terms of environmental protection and resource utilization. However, recycled aggregate (RA) possesses some property defects. Therefore, RA usually needs to be strengthened by modification technologies prior to use. In order to promote the convenient and low-cost utilization of construction waste, a new method of preparing construction waste into powder and using recycled powder (RP) as asphalt filler is proposed in this research. The property defects of RA and the applicability of RP used as filler were first analyzed based on their material characteristics. Then, asphalt concrete with RP was designed according to the Superpave method, and the engineering performance of the asphalt mixture was further investigated. According to the results, we recommend the use of acidic RP in combination with other highly alkaline fillers, such as Portland cement (PC), with a suitable blending ratio of RP to PC of 1:1. Preparing asphalt concrete with filler composed of RP and PC can achieve satisfactory engineering performance.

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Evaluation of red mud as filler in Brazilian dense graded asphalt mixtures

Cited by 37 publications

References 24 publications

Effect of Industrial Solid Waste as Fillers on the Rheology and Surface Free Energy of Asphalt Mastic

Effect of Industrial Solid Waste as Fillers on the Rheology and Surface Free Energy of Asphalt Mastic

Methanol Synthesis Catalyst Waste as the Principal Component of New Sustainable Cementless Concrete

Utilization of Construction Waste Recycled Powder as Filler in Asphalt Concrete

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