Effects of Rheological Properties of Mortar and Magnetic Field Strength on Steel Fiber Distribution Characteristics
ZHANG Chong1, BI Mengdi2, LIU Tongjun3, NING Jinghua3, DUAN Guangbin1, ZHANG Xiuzhi1,*, MU Ru2,*
1 School of Materials Science and Engineering, University of Jinan, Jinan 250022, China 2 School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China 3 Power China Shandong Pipeline Engineering Corporation Limited, Jinan 250117, China
Abstract: To adjust the yield stress and plastic viscosity of mortar, the amount of superplasticizer was changed. Effects of yield stress, plastic viscosity and magnetic field strength on the dispersion and directivity of steel fibers were analyzed. The results showed that when the yield stress was less than 16.5 Pa, steel fiber could overcome the yield stress and rotate and orient along the flow direction under the action of mortar flow shear and self-gravity. With the increase of flow distance, orientation coefficient gradually increased, but when the flow distance was greater than 0.4 m, orientation coefficient tended to be stable. When yield stress was less than 2.5 Pa and plastic viscosity was less than 10 Pa·s, the steel fiber would settle. In addition, increasing the intensity of the external magnetic field could significantly improve orientation coefficient of steel fiber. When the content of the superplasticizer was certain, orientation coefficient of steel fiber of cement mortar passing through a 6.39 mT magnetic field was increased by 18%—40% compared with that without a magnetic field.
张冲, 毕梦迪, 刘同军, 宁靖华, 段广彬, 张秀芝, 慕儒. 砂浆流变性能和外界磁场强度对钢纤维分布特征的影响[J]. 材料导报, 2022, 36(24): 21110154-6.
ZHANG Chong, BI Mengdi, LIU Tongjun, NING Jinghua, DUAN Guangbin, ZHANG Xiuzhi, MU Ru. Effects of Rheological Properties of Mortar and Magnetic Field Strength on Steel Fiber Distribution Characteristics. Materials Reports, 2022, 36(24): 21110154-6.
1 Zhang Y S, Zhang W H, Chen Z Y. Materials Reports A:Review Papers, 2017, 31(12), 1 (in Chinese). 张云升, 张文华, 陈振宇. 材料导报:综述篇, 2017, 31(12), 1. 2 Schleiting M, Wetzel A, KrooΒ P, et al. Cement and Concrete Research, 2020, 130, 105993. 3 Zhang T Y, Li Q B, Wang Z L, et al. Journal of the Chinese Ceramic Society. 2012, 40(5), 638 (in Chinese). 张廷毅, 李庆斌, 汪自力, 等. 硅酸盐学报, 2012, 40(5), 638. 4 Arunothayan A R, Nematollahi B, Ranade R, et al. Cement and Concrete Research, 2021, 143, 106384. 5 Raju R A, Lim S, Akiyama M, et al. Construction and Building Materials, 2020, 262, 119963. 6 Huang H H, Gao X J, Khayat K H. Cement and Concrete Composites, 2021, 121, 104108. 7 Zhao J, Liao L, Zhang F, et al. Journal of Building Materials, 2020, 23(4), 838 (in Chinese). 赵健, 廖霖, 张帆, 等. 建筑材料学报, 2020, 23(4), 838. 8 Wang Z W, Zhou H F, Xie Z L. Materials Reports, 2021, 35(12), 12214 (in Chinese). 王哲伟, 周华飞, 谢子令. 材料导报, 2021, 35(12), 12214. 9 Zhang X Z, Bi M D, Liu T J, et al. Journal of the Chinese Ceramic Society, 2021, 49(8), 1732 (in Chinese). 张秀芝, 毕梦迪, 刘同军, 等. 硅酸盐学报, 2021, 49(8), 1732. 10 Trabucchi I, Tiberti G, Conforti A, et al. Construction and Building Materials, 2021, 307, 124834. 11 Gou H X, Zhu H B, Zhou H Y, et al. Journal of the Chinese Ceramic Society, 2020, 48(11), 1756 (in Chinese). 苟鸿翔, 朱洪波, 周海云, 等. 硅酸盐学报, 2020, 48(11), 1756. 12 Huang H H, Gao X J, Teng L. Construction and Building Materials, 2021, 296, 123741. 13 Mu R, Qiu X, Zhao Q M, et al. Journal of the Chinese Ceramic Society. 2015, 18(2), 208 (in Chinese). 慕儒, 邱欣, 赵全明, 等. 建筑材料学报, 2015, 18(2), 208. 14 Mu R, Li H, Wang X W, et al. Journal of the Chinese Ceramic Society. 2015, 18(3), 387 (in Chinese). 慕儒, 李辉, 王晓伟, 等. 建筑材料学报, 2015, 18(3), 387. 15 Mu R, Wang C, Li H, et al. Journal of the Chinese Ceramic Society. 2016, 19(1), 78 (in Chinese). 慕儒, 王成, 李辉, 等. 建筑材料学报, 2016, 19(1), 78. 16 Huang H H, Gao X J, Li L S, et al. Construction and Building Materials, 2018, 188, 709. 17 Joye D D. Journal of Colloid and Interface Science, 2003, 267(1), 204. 18 Teng L, Meng W N, Khayat K H. Cement and Concrete Research, 2020, 138, 106222. 19 Lin J J. Investigation on orientation control and enhancement effect of steel fibres in cenmentitious materials. Ph. D. Thesis, Hebei University of Technology, China, 2015 (in Chinese). 林建军. 水泥基材料中钢纤维的方向控制及增强效应研究. 博士学位论文, 河北工业大学, 2015. 20 Alberti M G, Enfedaque A, Gálvez J C. Construction and Building Materials, 2019, 219, 144. 21 Abdelrazik A M, Khayat K H. Construction and Building Materials, 2020, 230, 116852. 22 Ozyurt N, Mason T O, Shah S P. Cement and Concrete Composites, 2007, 29(2), 70. 23 Wang R, Gao X J, Huang H H, et al. Construction and Building Materials, 2017, 144, 65. 24 Pae J, Kang S H, Lee N, et al. Construction and Building Materials, 2021, 303, 124515. 25 Raju R A, Lim S, Akiyama M, et al. Construction and Building Materials, 2020, 262, 119963. 26 Villar V P, Medina N F, Hernández-Olivares F. Construction and Buil-ding Materials, 2019, 201, 340.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2022, Vol. 36 
