Abstract: High carbon ferrochromium slag is a kind of industrial smelting waste slag which is accumulated in large quantities and needs to be disposed of urgently. Using ferrochromium slag as aggregate to prepare green concrete is a promising approach to its consumption. In order to explore the influence of the material properties of ferrochromium slag on the performance of concrete, this study adjusts the aggregate gradation of ferrochromium slag to be consistent with natural sand and gravel, and studies the influence of ferrochromium slag aggregate on the flow performance, mechanical properties, chloride ion permeability resistance and microstructure of concrete. Meanwhile, based on different curing methods, the interfacial activity of ferrochromium slag was analyzed. The results show that the surface of ferrochromium slag is rough and has many open pores, under the same aggregate gradation, the replacement of natural aggregate by ferrochromium slag has an adverse effect on the flow properties of concrete mixtures, but it improves the compressive strength, the splitting tensile strength and the resistance to chloride ion permeability of concrete, and also have a certain improvement on the interface transition zone of concrete. In addition, ferrochromium slag has a certain improvement effect on the microstructure of the interface transition zone of concrete, and there are a small amount of low active substances on the surface of ferrochromium slag, which will participate in the reaction in the case of autoclave or later hydration.
黄鹏宇, 周永祥, 冷发光, 贺阳, 孔亚宁, 杨文, 高育欣. 同级配下高碳铬铁渣骨料对混凝土性能的影响研究[J]. 材料导报, 2024, 38(22): 23090192-7.
HUANG Pengyu, ZHOU Yongxiang, LENG Faguang, HE Yang, KONG Yaning, YANG Wen, GAO Yuxin. Research on the Influence of High-carbon Ferrochromium Slag Aggregate on the Properties of Concrete Under the Same Gradation. Materials Reports, 2024, 38(22): 23090192-7.
1 Miao X W, Bai Z T, Lu G H, et al. Chinese Journal of Engineering Science, 2020, 42(6), 663(in Chinese). 苗希望, 白智韬, 卢光华, 等. 工程科学学报, 2020, 42(6), 663 2 Liu B Y, Yang Y F, Yue B, et al. Environmental Engineering, 2016, 34(S1), 679(in Chinese). 刘柏杨, 杨玉飞, 岳波, 等. 环境工程, 2016, 34(S1), 679. 3 Wang F H, Liu L X. Concrete and Cement Products, 2017(8), 24(in Chinese). 汪发红, 刘连新. 混凝土与水泥制品, 2017(8), 24. 4 Zhou Y X, He Y, Liu C, et al. New Building Materials, 2021, 48(1), 6(in Chinese). 周永祥, 贺阳, 刘晨, 等. 新型建筑材料, 2021, 48(1), 6. 5 Lakshmi P P P, Anu V V V. International Research Journal of Engineering and Technology, 2018, 5, 1500. 6 Yang F, Sun X M. Steel Vanadium and Titanium, 2021, 42(3), 119(in Chinese). 杨飞, 孙晓敏. 钢铁钒钛, 2021, 42(3), 119. 7 Susheel S M, Sathwik S R, Vinayak T, et al. International Research Journal of Engineering and Technology, 2016, 3(6), 250. 8 Al-Jabri K, Shoukry H, Khalil I, et al. Journal of Materials in Civil Engineering, 2018, 30, 04018152. 9 Yaragal S C, Chethan Kumar B, Jitin C. Sustainable Materials and Technologies, 2020, 23, 137. 10 Dash M K, Patro S K. Construction and Building Materials, 2018, 177, 457. 11 Panda C R, Mishra K K, Panda K C, et al. Construction and Building Materials, 2013, 49, 262. 12 Zhang X, Zhang G H, Wang J W, et al. In: Proceedings of the Symposium on Highway Scientific Maintenance and Equipment Technology. Shenyang, 2017, pp.5(in Chinese). 张潇, 张冠华, 王佳伟, 等. 公路科学养护及装备技术研讨会. 沈阳, 2017, pp.5. 13 Acharya P K, Patro S K. Waste Management & Research: The Journal for a Sustainable Circular Economy, 2016, 34(8), 764. 14 Zhang S, Liu L, Tan K, et al. Construction and Building Materials, 2015, 93, 1180.
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2024, Vol. 38 
