Composition Design and Performance Evaluation of SMA-5 Steel Slag Asphalt Mixture

Abstract

Abstract: In order to promote the application of small-size steel slag in thin-layer asphalt mixtures, the aggregate mix ratio of SMA-5 asphalt mixtures was designed using the V-S (volumetric mix) method. Adding 1.18~2.36 mm and 2.36~4.75 mm steel slag aggregates (equal volume replacement of limestone aggregates) into SMA-5 asphalt mixtures, and its effect on the percent voids in coarse mineral aggregate VCA_mix in asphalt mixtures and the optimum asphalt content of asphalt mixtures was analyzed. The high temperature stability, low temperature cracking resistance and moisture stability of steel slag asphalt mixtures were evaluated using rutting test, beam bending test, freeze-thaw splitting test and water-immersion Marshall test. The results show that the inclusion of steel slag reduces the effect of skeleton structure between aggregates and increases the amount of asphalt used in asphalt mixture. The high temperature stability of asphalt mixture is reduced by adding steel slag. However, with the increase of steel slag content, the low temperature performance of asphalt mixture decreases, and the moisture stability and high temperature stability increase. It is recommended that 75% of steel slag of 2.36~4.75 mm in SMA-5 steel slag asphalt mixture is the optimal ratio.

Key words: road engineering, asphalt mixture, steel slag, SMA-5, road performance, percent voids in coarse mineral aggregate

CLC Number:

U414

LIU Haixia, ZHANG Xin, HAN Gengbin, LI Zhonghong, LAI Hao, XIONG Rui. Composition Design and Performance Evaluation of SMA-5 Steel Slag Asphalt Mixture[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(10): 3778-3786.

References

[1] 王吉凤, 付恒毅, 闫晓彤, 等. 钢渣综合利用研究现状[J]. 中国有色冶金, 2021, 50(6): 77-82.
WANG J F, FU H Y, YAN X T, et al. Research status of comprehensive utilization of steel slag[J]. China Nonferrous Metallurgy, 2021, 50(6): 77-82 (in Chinese).
[2] LYU Z H, SHEN A Q, LI D S, et al. Effect of dry-wet and freeze-thaw repeated cycles on water resistance of steel slag asphalt mixture[J]. Iranian Journal of Science and Technology, Transactions of Civil Engineering, 2021, 45(1): 291-301.
[3] 高振鑫, 申爱琴, 翟超伟, 等. 钢渣沥青混合料体积参数测定与水稳定性影响机理[J]. 交通运输工程学报, 2018, 18(2): 1-10.
GAO Z X, SHEN A Q, ZHAI C W, et al. Determination of volumetric parameters and impacting mechanism of water stability for steel slag asphalt mixture[J]. Journal of Traffic and Transportation Engineering, 2018, 18(2): 1-10 (in Chinese).
[4] MA L L, XU D B, WANG S Y, et al. Expansion inhibition of steel slag in asphalt mixture by a surface water isolation structure[J]. Road Materials and Pavement Design, 2020, 21(8): 2215-2229.
[5] 张彩利, 王超, 李松, 等. 钢渣沥青混合料水稳定性研究[J]. 硅酸盐通报, 2021, 40(1): 207-214.
ZHANG C L, WANG C, LI S, et al. Research on water stability of steel slag asphalt mixture[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(1): 207-214 (in Chinese).
[6] CHEN W, WEI J C, XU X Z, et al. Study on the optimum steel slag content of SMA-13 asphalt mixes based on road performance[J]. Coatings, 2021, 11(12): 1436.
[7] LI C H, XIANG X D, QIN X X. Utilization of steel slag as aggregates for SMA-13[J]. Applied Mechanics and Materials, 2015, 768: 402-405.
[8] WAN J M, WU S P, HU X D, et al. Assessment on steel slag-based SMA-5 and AC-5 asphalt mixtures for maintenance and induction heating[J]. Journal of Materials in Civil Engineering, 2022, 34(3): 04021471.
[9] 邱怀中, 杨超, 吴少鹏, 等. 超薄磨耗层SMA-5钢渣沥青混合料性能研究[J]. 武汉理工大学学报(交通科学与工程版), 2021, 45(1): 28-32.
QIU H Z, YANG C, WU S P, et al. Investigation on the performance of SMA-5 steel slag asphalt mixture with ultra-thin wearing layer[J]. Journal of Wuhan University of Technology (Transportation Science & Engineering), 2021, 45(1): 28-32 (in Chinese).
[10] 何亮, 詹程阳, 吕松涛, 等. 钢渣沥青混合料应用现状[J]. 交通运输工程学报, 2020, 20(2): 15-33.
HE L, ZHAN C Y, LYU S T, et al. Application status of steel slag asphalt mixture[J]. Journal of Traffic and Transportation Engineering, 2020, 20(2): 15-33 (in Chinese).
[11] 郭金星, 张书华. 沥青种类对SMA-13级配的影响[J]. 公路交通科技, 2018, 35(9): 9-14.
GUO J X, ZHANG S H. Influence of asphalt types on SMA-13 gradation[J]. Journal of Highway and Transportation Research and Development, 2018, 35(9): 9-14 (in Chinese).
[12] 邢明亮, 孙岳, 谢超, 等. 基于灰熵法的SMA-5混合料级配组成范围研究[J]. 公路, 2017, 62(11): 225-230.
XING M L, SUN Y, XIE C, et al. Study on gradation composition range of SMA-5 mixture based on grey entropy method[J]. Highway, 2017, 62(11): 225-230 (in Chinese).
[13] 赵永利. 沥青混合料的结构组成机理研究[D]. 南京: 东南大学, 2005.
ZHAO Y L. Study on structure composition mechanism of asphalt mixture[D]. Nanjing: Southeast University, 2005 (in Chinese).
[14] 辽宁省市场监督管理局. 沥青玛蹄脂碎石混合料设计与施工技术规范: DB21/T 1403—2020[S]. 2020.
Liaoning Administration for Market Regulation. Technical specifications for design and construction of stone matrix asphalt: DB21/T 1403—2020[S]. 2020 (in Chinese).
[15] Standard specification for stone matrix asphalt (SMA): AASHTO M 325—2008[S]. AASHTO, 2008.
[16] 高颖, 王伟赫, 陈萌, 等. 钢渣体积膨胀行为及改性方法研究进展[J]. 科学技术与工程, 2021, 21(33): 14040-14048.
GAO Y, WANG W H, CHEN M, et al. Research progress on bulk expansion behavior and modification methods of steel slag[J]. Science Technology and Engineering, 2021, 21(33): 14040-14048 (in Chinese).
[17] 李俊, 陆海珠, 李明亮, 等. 粗集料骨架间隙率对多孔沥青混合料性能的影响[J]. 公路工程, 2022, 47(1): 109-114.
LI J, LU H Z, LI M L, et al. Effect of voids of coarse aggregate on performances of porous asphalt mixture[J]. Highway Engineering, 2022, 47(1): 109-114 (in Chinese).