植物纤维增强混凝土力学性能试验研究  

Experimental Study on Mechanical Properties of Plant Fiber Reinforced Concrete

作　　者：贺会团[1] HE Hui-tuan(Jiaxing Vocational and Technical College,Jiaxing 314036,Zhejiang,China)

机构地区：[1]嘉兴职业技术学院,浙江嘉兴314036

出　　处：《合成纤维》2024年第3期54-59,共6页Synthetic Fiber in China

基　　金：浙江省新苗人才项目(2021R470008)自洁式透水砖技术开发与嘉兴城市建设应用研究。

摘　　要：以剑麻纤维、黄麻纤维和竹纤维为增强体,研究了植物纤维对混凝土的抗压、抗折等力学性能的增强效果,以及植物纤维的长度、掺入量和纤维分布对增强效果的影响,并与聚丙烯纤维增强效果进行对比分析。试验证明:植物纤维对混凝土抗压强度的影响可忽略不计,但对混凝土抗折强度产生重要影响。剑麻纤维(长度20 mm,体积分数1.5%)、竹纤维(长度10 mm,体积分数1.0%)和黄麻纤维(长度10 mm,体积分数1.5%)增强效果均较好,竹纤维增强效果优于其他两种植物纤维。植物纤维混掺增强效果优于单一植物纤维增强效果,总体积分数1.5%的“剑麻纤维—黄麻纤维—竹纤维”混掺增强效果最好。Using sisal fiber,jute fiber and bamboo fiber as reinforcement,the reinforcement effect of plant fiber on the mechanical properties of concrete,such as compressive resistance and flexural resistance,and the influence of plant fiber length,incorporation amount and fiber distribution on the reinforcement effect were studied,and the reinforcement effect was compared with polypropylene fiber.The results show that the effect of plant fiber on the compressive strength of concrete is negligible,but it has an important effect on the flexural strength of concrete.Sisal fiber(20 mm length,1.5%volume fraction),bamboo fiber(10 mm length,1.0%volume fraction)and jute fiber(10 mm length,1.5%volume fraction)have better reinforcement effect,and bamboo fiber has better reinforcement effect than the other two plant fibers.The strengthening effect of plant fiber mixing is better than that of single plant fiber,and the blending effect of"sisal fiber-jute fiber-bamboo fiber"with the total blending volume fraction of 1.5%is the best.

关 键 词：植物纤维 聚丙烯纤维 混凝土 力学性能 混掺 

分 类 号：TU528.572[建筑科学—建筑技术科学] TQ342.62[化学工程—化纤工业]