@Article{jrm.2023.027512,
AUTHOR = {Jinxing Wang, Yingjie Yang, Xiaolin Yang, Huazhe Jiao, Qi Wang, Liuhua Yang, Jianxin Yu, Fengbin Chen},
TITLE = {Study on Mechanical Properties of High Fine Silty Basalt Fiber Shotcrete Based on Orthogonal Design},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {11},
YEAR = {2023},
NUMBER = {8},
PAGES = {3351--3370},
URL = {http://www.techscience.com/jrm/v11n8/53382},
ISSN = {2164-6341},
ABSTRACT = {In order to improve the comprehensive utilization rate of high fines sand (HFS) produced by the mine, full solid
waste shotcrete (HFS-BFRS) was prepared with HFS as fine aggregate in cooperation with basalt fiber (BF). The
strength growth characteristics of HFS-BFRS were analyzed. And the fitting equation of compressive strength
growth characteristics of HFS-BFRS under the synergistic effect of multiple factors was given. And based on
the orthogonal experimental method, the effects on the compressive strength, splitting tensile strength and flexural strength of HFS-BFRS under the action of different levels of influencing factors were investigated. The effect
of three factors on the mechanical properties of HFS-BFRS, 3, and 28 d, respectively, was revealed by choosing the
colloidal sand ratio (C/H), basalt fiber volume fraction (BF Vol) and naphthalene high-efficiency water reducing
agent (FDN) as the design variables, combined with indoor tests and theoretical analysis. The results show that
the sensitivity of the three factors on compressive strength and flexural strength is C/H > FDN > BF Vol, and splitting tensile strength is BF Vol > FDN > C/H. Finally, the fitting ratio of HFS-BFRS was optimized by the factor
index method, and the rationality was verified by the field test. For the fluidity of HFS-BFRS, the slump can
be improved by 139% under the action of 1.2% FDN, which guarantees the pump-ability of HFS-BFRS.},
DOI = {10.32604/jrm.2023.027512}
}