摘要
通过在混凝土中添加不同掺量的玉米秸秆纤维和轮胎刚丝纤维,分析了玉米秸秆纤维和废旧轮胎钢丝纤维的掺量对混凝土7 d和28 d的立方体抗压强度的影响,同时也进行了抗冻性试验。研究表明:在适量的纤维掺量下,玉米秸秆纤维和轮胎钢丝纤维对混凝土7 d和28 d的立方体抗压强度都具有提升效果,最优组掺量为0.6%的玉米秸秆纤维,1.0%的轮胎钢丝纤维,抗压强度分别比基准组提高了8.78%和15.92%;两种纤维的掺入也提高了混凝土的抗冻性,最优组较基准组在冻融循环25、50、75次时的损失率分别降低3.63%、4.46%、7.31%。
In concrete by adding different content of corn stalk fiber and tire just silk fiber,corn straw stalk fiber and waste tires are analyzed of steel fiber content on concrete 7 d and 28 d cube compressive strength,the influence of and the frost resistance test.The results show that,under the appropriate fiber content,corn straw fiber and tire wire fiber can improve the 7-day and 28-day cubic compressive strength of concrete.The optimal group is 0.6%corn straw fiber and 1.0%tire wire fiber,and the compressive strength is 8.78%and 15.92%higher than that of the reference group respectively.The addition of two kinds of fibers also improved the freezing resistance of concrete,and the loss rate of the optimal group was 3.63%,4.46%and 7.31%lower than that of the benchmark group at 25,50 and 75 freeze-thaw cycles,respectively.
作者
王端阳
毕重
何秀彬
张恩涛
任莉莉
WANG Duan-yang;BI Zhong;HE Xiu-bin;ZHANG En-tao;REN Li-li(School of Civil and Architectural Engineering,Liaoning University of Technology,Jinzhou 121001,China;Faculty of Railway Engineering,Liaoning Railway Vocational and Technical College,Jinzhou 121001,China)
出处
《辽宁工业大学学报(自然科学版)》
2024年第2期100-104,共5页
Journal of Liaoning University of Technology(Natural Science Edition)
基金
辽宁工业大学大学生创新创业训练计划项目(S202210154032)。
关键词
纤维混凝土
玉米秸秆纤维
轮胎钢丝纤维
抗压强度
抗冻性能
fiber reinforced concrete
corn straw fiber
tire steel wire fiber
Compressive strength
frost resistance