文献类型：期刊文献

英文题名：Characterization of Short-Term Strength Properties of Fiber/Cement-Modified Slurry

作者：Jiang, Ping[1];Mao, Tianhao[1];Li, Na[1];Jia, Liang[2];Zhang, Fang[1];Wang, Wei[1]

机构：[1]Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Zhejiang, Peoples R China;[2]Lanzhou Univ Technol, Coll Civil Engn, Lanzhou 730050, Gansu, Peoples R China

年份：2019

卷号：2019

外文期刊名：ADVANCES IN CIVIL ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000492994900001)、、Scopus(收录号：2-s2.0-85074289662)、WOS

基金：This research was funded by the National Natural Science Foundation of China (grant nos. 41772311 and 51568044), the Zhejiang Provincial Natural Science Foundation of China (grant no. LY17E080016), the Open Research Fund of Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, the Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, the Institute of Rock and Soil Mechanics, Chinese Academy of Science (grant no. Z017013), the Scientific Research Projects of Zhejiang Department of Housing and Urban and Rural Construction of China (grant no. 2017K179), and the International Scientific and Technological Cooperation Projects of Shaoxing University (grant no. 2019LGGH1007).

语种：英文

外文摘要：The recycling of construction waste slurry is an urgent issue that needs to be solved in urban construction. To satisfy the requirements of subgrade filling, mechanical properties of fiber/cement-modified slurry were investigated. Unconfined compression tests were conducted for 7-day-cured specimens with a cement content of 5%, 10%, 15%, 20%, 25%, and 30%, respectively. Moreover, the effects of fiber contents (0.25%, 0.5%, 0.75%, and 1%, respectively) were also investigated for the specimens with a cement content of 20%. A formula satisfying the accuracy requirement was obtained by fitting the stress-strain curves using the back propagation (BP) neural network algorithm. Five parameters, including peak strength, failure strain, initial elastic modulus, residual strength, and energy dissipation, were used to characterize the short-term strength properties of fiber/cement-modified slurry. The analysis revealed that the cement content had a dominant effect on the short-term strength properties of fiber/cement-modified slurry, while the influence of fiber content was insignificant.