Laboratory investigation on road performances of asphalt mixtures using steel slag and granite as aggregate

Zhao, Xinze; Sheng, Yanping; Jia, Haichuan; Liu, Qinlong; Ji, Xin; Xiong, Rui

doi:10.1016/j.conbuildmat.2021.125655

Cited by 33 publications

(8 citation statements)

References 36 publications

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“…However, with the enlargement in the scale of expressway construction in China in recent years, the rising demand for basalt stone has led to soaring costs in SMA production. Some researchers investigated the utilization of hybrid lithological stone or steel slag in SMA to mitigate the cost by reducing the usage of basalt coarse aggregate [9][10][11][12][13][14][15][16][17][18]. However, the long-term performance of these SMAs needs to be verified through engineering practice.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Gradation Range and Performance of SMAC13

Zhen,

Cao,

Dong

et al. 2024

Materials

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Stone matrix asphalt and asphalt concrete mixture with 13.2 mm nominal maximum aggregate size (named SMA13 and AC13, respectively) are widely used in the surface course of asphalt pavement in China. Generally, the pavement performance of SMA13 is superior to that of AC13, while the cost of the former is significantly higher than that of the latter. The objective of this paper was to develop a new hot mix asphalt (named SMAC13) whose performance and cost are between SMA13 and AC13. A boundary sieve size (BSS) of 2.36 mm was selected between fine and coarse aggregates. Based on the union set of aggregate gradation ranges of SMA13 and AC13, the family of gradation curves in the forms of S shapes were designed in terms of the BSS passing rate. According to the evaluation of the skeleton interlock of coarse aggregate of the gradation curve family, the aggregate gradation range of SMAC13 was determined. Also, the performance of three kinds of asphalt mixtures were compared through laboratory tests. The results indicated that SMA13 shows the best rutting resistance, followed by SMAC13 then AC13, while in terms of low-temperature performance in resistance to cracking, the sequence is SMAC13, AC13, and SMA13. The sequence of water stability is AC13, SMAC13, and SMA13. Furthermore, the cost of SMAC13 is 25% less than that of SMA13. Therefore, SMAC13 can be used as an alternative for the surface course of asphalt pavement in terms of performance and cost.

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Section: Introductionmentioning

confidence: 99%

Experimental Research on Gradation Range and Performance of SMAC13

Zhen,

Cao,

Dong

et al. 2024

Materials

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“…The aggregates used for asphalt pavements are typically alkaline or neutral high-quality stones, such as limestone and basalt. However, the resources for these building stones are becoming increasing low and will no longer meet long-term needs; consequently, their price is continuously increasing [1,2]. By contrast, acidic aggregates are widely distributed in China and they are easily obtained locally; hence, their cost is relatively low.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Investigation of the Water Damage Resistance of Tuff Asphalt Mixture Modified with Additives

Zhang

Lin

et al. 2023

Coatings

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To improve the water damage resistance performance of a tuff asphalt mixture, a tuff mixture with cement and a liquid anti-stripping agent was used as the research object, and limestone and tuff mixtures without additives were selected as contrast samples. Through an improved boiling test and a water stability test before and after aging, the modification effect of the tuff mixture with additives of different types and contents on water damage resistance was evaluated to obtain the appropriate type and content of additives. On this basis, the other road performance measures of the selected mixture were further evaluated by immersion rutting and beam bending tests to verify the modification effect of the additive on the tuff mixture. Results showed that adding the appropriate cement content to the tuff mixture provided excellent resistance to the water damage effect. An optimal content of 2% cement additive in the mixture was obtained, and its high-temperature anti-rutting and low-temperature bending performance were also verified. Adhesion between tuff aggregates and asphalt polymer under water conditions was significantly improved and close to that of limestone aggregates. The modification effect of water stability after mixture aging was better than that of the anti-stripping agent. The residual stability and freeze–thaw splitting strength ratio of 2% cement content mixture were increased by about 21.5% and 16.7%, respectively, compared with those of the tuff mixture control.

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“…Generally, mineral aggregates account for over 90% of asphalt mixtures [11][12][13][14]. With the development of highway construction and maintenance, premium fillers will be consumed in large quantities [15,16]. Therefore, the contradiction between supply and demand is apparent because of the tremendous supply pressure on natural resources.…”

Section: Introductionmentioning

confidence: 99%

Research on the Moisture Stability of Asphalt Mixtures with Three Solid Waste Fillers

Hu,

Chen,

Chen

et al. 2023

Materials

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Widespread interest has been drawn to the use of solid waste fillers as a partial replacement for natural fillers in high-performance asphalt mixtures in recent years. However, variations in the material properties of solid waste fillers remain a problem for the recycling method. To address this issue, the limestone powder in asphalt mixtures was replaced with three solid waste fillers, including steel slag powder, tailings powder and calcium carbide slag powder in this study. The chemical composition of the fillers was first characterized to assess the homogeneity of the material. Then, a dense-graded asphalt mixture (AC) and a stone matrix asphalt (SMA) mixture were designed, produced and characterized for wet stability. The results show that the asphalt mixtures with solid waste fillers were superior to limestone powder (LP) asphalt mixtures in terms of resistance to water damage, and the steel slag powder showed the best improvement in moisture stability of the asphalt mixtures. The optimum substitution of solid waste filler for limestone filler was 25%. With the addition of anti-stripping agents, the moisture stability of the asphalt mixture with limestone filler was also greatly enhanced. On the contrary, a marginal enhancement was observed in the moisture stability of asphalt mixtures using solid waste fillers. Solid waste fillers can be used in asphalt mixtures and have a similar function as that of anti-stripping agents. In summary, the use of solid waste fillers to replace mineral fillers in asphalt mixtures is a reliable, value-added recycling option.

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Laboratory investigation on road performances of asphalt mixtures using steel slag and granite as aggregate

Cited by 33 publications

References 36 publications

Experimental Research on Gradation Range and Performance of SMAC13

Experimental Research on Gradation Range and Performance of SMAC13

Laboratory Investigation of the Water Damage Resistance of Tuff Asphalt Mixture Modified with Additives

Research on the Moisture Stability of Asphalt Mixtures with Three Solid Waste Fillers

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