玄武岩纤维对混凝土抗折强度的影响  

The Influence of Basalt Fiber on the Flexural Strength of Concrete

作　　者：顾广娟 张有为[1] 靳春森 蒋亚龙 GU Guangjuan;ZHANG Youwei;JIN Chunsen;JIANG Yalong(School of Civil Engineering,Anhui Jianzhu University,Hefei 230601,China;School of Urban Construction,Anhui Xinhua University,Hefei 230088,China)

机构地区：[1]安徽建筑大学土木工程学院,安徽合肥230601 [2]安徽新华学院城市建设学院,安徽合肥230088

出　　处：《兰州工业学院学报》2025年第2期15-19,共5页Journal of Lanzhou Institute of Technology

基　　金：安徽省教育厅自然科学重点项目(2022AH051871);安徽省高校优秀科研创新团队项目(2023AH010059);安徽新华学院校级科研团队项目(kytd202202)。

摘　　要：通过设置在混凝土中掺入5种不同长度的玄武岩纤维(0,6,12,18 mm,BF-H),每组变量设置3个尺寸相同的试块(100 mm×100 mm×400 mm),共计15块进行抗折强度试验,以获得不同长度下的玄武岩纤维混凝土的抗折强度。实验结果表明:随着玄武岩纤维长度的增加,玄武岩纤维混凝土的抗折性能得到了显著提高,并且在长度为12 mm时抗折强度达到最大值。然而,当玄武岩纤维长度达到18 mm时,抗折强度反而出现了降低的情况,并且不同长度的玄武岩纤维混掺时,其抗折强度比玄武岩纤维长度为12 mm时更高。In this paper,by incorporating five different lengths of basaltic fibers(0 mm,6 mm,12 mm,18 mm,BF-H)into the concrete,and setting three test blocks with the same size(100×100×400)for each group of variables,a total of 15 pieces are used for the flexural strength test to obtain the flexural strength of basaltic fiber concrete of different lengths.The experimental results show that with the increase of the length of basaltic fibers,the flexural performance strength of basaltic fiber concrete has been significantly improved,and the flexural strength reaches the maximum value at a length of 12 mm.However,when the length of basalt fiber reaches 18 mm,the flexural strength decreases,and when the basalt fiber of different lengths are mixed,the flexural strength is higher than that when the basalt fiber length is 12 mm.

关 键 词：玄武岩纤维 抗折强度 混掺纤维 纤维长度 

分 类 号：TU528[建筑科学—建筑技术科学]