Effect of Polypropylene Fiber on the Unconfined Compressive Strength of Loess with Different Water Content

作     者：Wankui Ni Jiaxin Zhong Haiman Wang 

作者机构：College of Geological Engineering and GeomaticsChang’an UniversityXi’an710054China Ningxia Institute of Survey and Monitoring of Land and ResourcesYinchuan750002China 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2023年第11卷第4期

页      面：1699-1714页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：National Natural Science Foundation of China, NSFC, (1931285) Shanxi Provincial Key Research and Development Project, (2020SF-436) 

主　　题：Loess polypropylene fiber response surface method water content 

摘      要：Fiber-reinforced soils have been of great interest to experimenters for building foundations’strength performance,time,and *** paper investigates the effects of water content and polypropylene fiber dosage and length on loess’s unconfined compressive strength(UCS)according to the central composite response surface design test *** water content is 11%–25%,the mass ratio of fiber to soil is 0.1%–0.9%,and the fiber length ranges from 6–18 *** response surface method(RSM)developed full quadratic models of different variables with response *** analysis of variance(ANOVA),the mathematical model developed in this study was statistically significant(p≤0.05)and applicable to the optimization *** optimization results showed that the optimal water content values,fiber amount,and fiber length were 16.41%,0.579%,and 14.90 mm,*** unconfined compressive strength of the optimized specimens was increased by 288.017 *** research results can reference the design and construction of fiber-reinforced soil in practical projects such as road base engineering and foundation engineering.