Optimization of Absorbing Aggregates for Microwave Deicing and Design of Concrete Pavement Absorbing Functional Layer
ZHAO Jing1,2, WANG Xuancang1,*, XIN Lei3, SONG Zihao1, REN Junru4, YANG Chaoshan4
1 School of Highway, Chang'an University, Xi'an 710064, China 2 School of Energy and Architecture, Xi'an Aeronautical Institute, Xi'an 710077, China 3 Sinohydro Corporation Engineering Bureau 15 Co., Ltd., Xi'an 710064, China 4 Army Logistical Academy of PLA, Chongqing 401331, China
Abstract: Microwaves can easily penetrate the ice, selectively heat the pavement surface and destroy the adhesion of ice to the road surface, compared with the traditional deicing method. This work develops a novel microwave absorbing function layer of concrete pavement. Firstly, the microwave heating characteristics, microwave durability, aggregate-matrix interface bond adhesion, and the economics of absorbing aggregates and limestone were comprehensively analyzed. One absorbing aggregate with better comprehensive performance was determined. The heating rate of the various particle size of microwave absorbing aggregate, the influence of the mechanical properties of the concrete after limestone replacement, and the tendency of upper and lower surfaces and their temperature difference of the various thickness microwave absorbing concrete were explored. And the optimal replacement particle size and the thickness of the absorbing function layer were recommended. Finally, the effect of graphite content on microwave heating performance and mechanical strength was studied, and the optimal content was determined. The results show that magnetite has better comprehensive properties; magnetite with a particle size of 16—19 mm has the best heating rate, and the strength of the microwave absorbing concrete prepared by replacing the corresponding limestone is higher than that of ordinary concrete. The thickness of the microwave-absorbing concrete functional layer is 5 cm to ensure optimal material utilization. At the same time, 3% graphite content can improve the uniformity of microwave heating and satisfy the mechanical requirements. The research results can provide a reference for microwave deicing applications and road and airport pavement.
1 Tan Y Q, Zhang C, Xu H N, et al. China Journal of Highway and Transport, 2019, 32(4), 1(in Chinese). 谭忆秋, 张驰, 徐慧宁, 等. 中国公路学报, 2019, 32(4), 1. 2 Mohammad M K, Ehsan A D, Ali B. Construction and Building Materials, 2022, 324, 126625. 3 Ma D C, Liu C Q, Gui X. Journal of Harbin Institute of Technology, 2022, 54(9), 44(in Chinese). 马登成, 刘成启, 桂学. 哈尔滨工业大学学报, 2022, 54(9), 44. 4 Rao R, Fu J Y, Chan Y J, et al. Composites Part B:Engineering, 2018, 155, 187. 5 Gao J, Sha A M, Wang Z J, et al. Journal of Cleaner Production, 2017, 152, 429. 6 Liu X M, Zhao Y, Liu W Z, et al. Journal of Cleaner Production, 2022, 332, 130111. 7 Wang Z J, Gao J, Tao A, et al. Journal of Testing and Evaluation, 2014, 42, 20130118. 8 Hamid J, Mohammad K, Behnam J, et al. Construction and Building Materials, 2018, 174, 656. 9 Ding L T, Wang X C, Cui X Z, et al. Cold Regions Science and Technology, 2021, 181, 103176. 10 Liu J L, Xu J Y, Lu S, et al. Construction and Building Materials, 2019, 225, 55. 11 Liu J L, Xu J Y, Huang H, et al. Cold Regions Science and Technology, 2020, 174, 103064. 12 Lu S, Bai E L, Xu J Y, et al. Construction and Building Materials, 2021, 286, 122868. 13 Ding S M. Study on electromagnetic wave absorbing concrete and its key technologies. Ph. D. Thesis, Xidian University, China, 2010(in Chinese). 丁世敏. 电磁吸波混凝土材料关键技术研究. 博士学位论文, 西安电子科技大学, 2010. 14 Wang Z H, Bai E L, Yan P, et al. Acta Material Composite Sinica, DOI:10.13801/j.cnki.fhclxb.20220915.008(in Chinese). 王志航, 白二雷, 严平, 等. 复合材料学报, DOI:10.13801/j.cnki.fhclxb.20220915.008. 15 Guo H Y, Wang Z J, Huo J Y, et al. Journal of Cleaner Production, 2020, 273, 123090. 16 Huang Y, Hu X, Shi C J, et al. Materials Reports, 2023, 37(1), 1(in Chinese). 黄燕, 胡翔, 史才军, 等. 材料导报, 2023, 37(1), 1. 17 Zou X G, Ji H L, Yang X H, et al. Journal of Civil Engineering and Management, 2021, 38(6), 17(in Chinese). 邹相国, 姬和力, 杨新华, 等. 土木工程与管理学报, 2021, 38(6), 17. 18 Standish N, Worner H K, Obuchowski D Y. Powder Technology, 1991, 66, 225. 19 Amini A, Ohno K, Maeda T, et al. Powder Technology, 2018, 338, 101.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2024, Vol. 38 
