Laboratory investigation of moisture susceptibility of warm-mix asphalt mixtures containing steel slag aggregates

Hesami, Saeid; Ameri, Mahmoud; Goli, Hadi; Akbari, Ali

doi:10.1080/10298436.2014.953502

Cited by 51 publications

(25 citation statements)

References 22 publications

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“…E Masad et al [7] noted that the steel slag has the stronger bonding strength with asphalt binder in comparison to natural aggregates. Moreover, the water damage resistance, as well as the stiffness and fatigue life of steel slag based asphalt mixture also improved due to the vesicular and pitted structure of steel slag [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Study of Toxicity Assessment of Heavy Metals from Steel Slag and Its Asphalt Mixture

Xie

et al. 2020

Materials

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Steel slag has been used widely as an aggregate in road application, but it could pose a contamination risk for the environment due to considerable heavy metals (HMs). To explore the leaching behavior and contamination risk of HMs from steel slag and its asphalt mixture is of great significance. In this study, the physical-chemical features, batch leaching test and semi-dynamic test were conducted to determine the mobility capability and leaching characteristics of HMs. The results show that steel slag presents a low pollution risk in short-term leaching, whereas the cumulative release mass of Cd, Ni, As and Pb are more than or approach the limits, which indicates that steel slag exhibits environment impacts to a certain extent. Steel slag covered with asphalt binder results in As and Cu reduced by 3.64% and 4.83%. Diffusion is the main controlling mechanism of HMs in asphalt mixture and the mobility capability of most HMs were classed as “low mobility” (LI > 8). Asphalt stripping off can aggravate the release potential of HMs from asphalt mixture, but the pollution risk remains controllable.

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Section: Introductionmentioning

confidence: 99%

Study of Toxicity Assessment of Heavy Metals from Steel Slag and Its Asphalt Mixture

Xie

et al. 2020

Materials

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“…In a separate study, modified bitumen affinity with EAFS as the coarse aggregate showed enhanced adhesion and moisture resistance of Warm Mix Asphalt (Ameri et al, 2013;Hesami et al, 2014).…”

Section: Moisture Sensitivitymentioning

confidence: 90%

“…The use of EAF slag fines has been rejected for warm mixes and water sensitivity in HMA was greatly worsened. Optimal moisture resistance appeared with slag as coarse aggregate and limestone as fines (Hesami et al, 2014;Oluwasola et al, 2015a, b). The expensive crushing procedures of EAF slag may also be noted that is on the whole a coarse material, so its drawbacks as a fine aggregate are mainly economic rather than technical (Fonseca et al, 2013;Wang et al, 2013).…”

Section: Usesmentioning

confidence: 99%

“…According to Ahmedzade and Sengoz (2009), slag mixtures were more cohesive, which was reflected in higher Indirect Tensile Strength Ratio (ITSR) compared to limestone mixtures; Behnood and Ameri (2012) suggested that steel slag in the coarse portion could lessen moisture damage in SMA mixtures. Hesami et al (2014) in a complete study on bituminous mixes with slag aggregates and their moisture susceptibility, demonstrated that slag used as sand degraded the water sensitivity. Similar results were found by Pasetto et al (2016).…”

Section: Moisture Sensitivitymentioning

confidence: 99%

“…Conversely, the moisture resistance of coarse aggregate slag mixtures was very high (Ameri et al, 2013;Hesami et al, 2014). Their understanding was that they had lower alkalinity than limestone and worse binder affinity, but conversely, the slag porosity and roughness, as the higher bitumen content led to a better bitumen coated particles (Hesami et al, 2014).…”

Section: Moisture Sensitivitymentioning

confidence: 99%

See 2 more Smart Citations

The use of electric arc furnace slag in bituminous pavements

Skaf¹,

Manso²,

Chica³

et al. 2019

Sustainable Construction Materials and Technologies (SCMT)

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Electric Arc Furnace (EAF) slag, a waste stream in the production of carbon steel, has interesting and extensively researched mechanical properties as an aggregate in asphalt mixes. In this paper, an exhaustive review is conducted of its main features, the problematic aspects of its use, and the main properties of the mixes prepared with this aggregate, such as mechanical behaviour, resistance to fatigue and permanent deformation, water sensitivity and skid resistance. Based on the literature review and own experience, the conclusion is that the use of EAF slag is generally recommended in partial replacement of the coarse aggregate, in all types of asphalt mixtures, following suitable pre-treatment. This usage improves mechanical performance, durability and long-term sustainability of the bituminous mixtures. Moreover, resistance against slipping and skidding on EAF slag pavements is an important safety-related aspect that makes them especially suitable for rainy regions.

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Analyzing the Moisture Susceptibility of Crumb Rubber Warm Mix Asphalt Using Imaging Technique

Gungat

Ispal

2019

Proceedings of AICCE'19

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Laboratory investigation of moisture susceptibility of warm-mix asphalt mixtures containing steel slag aggregates

Cited by 51 publications

References 22 publications

Study of Toxicity Assessment of Heavy Metals from Steel Slag and Its Asphalt Mixture

Study of Toxicity Assessment of Heavy Metals from Steel Slag and Its Asphalt Mixture

The use of electric arc furnace slag in bituminous pavements

Analyzing the Moisture Susceptibility of Crumb Rubber Warm Mix Asphalt Using Imaging Technique

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