层布式混杂纤维再生高强混凝土力学性能研究  

Study on mechanical properties of layered hybrid fiber recycled high strength concrete

作　　者：金贤泽 裴长春[1] Jin Xianze;Pei Changchun(College of Engineering,Yanbian University,Yanji 133002,China)

机构地区：[1]延边大学工学院,吉林延吉133002

出　　处：《山西建筑》2022年第16期117-119,共3页Shanxi Architecture

摘　　要：为了提高再生高强混凝土的力学性能及降低纤维使用量,通过改变混杂纤维层数分析其对再生高强混凝土力学性能的影响,试验研究表明:随着混杂纤维撒布层数的变化,再生高强混凝土的抗压强度有所提高,但提高幅度不大,劈裂抗拉强度有比较明显的增加,其中C2组再生高强混凝土提高幅度最为显著,为13.1%。随着混杂纤维撒布层数的变化,相对基准组再生高强混凝土而言,脆性降低、延性增加。在该实验中,当混杂纤维撒布层数为4层时,各项试验指标均得到良好的结果。In order to improve the mechanical properties of recycled high-strength concrete and reduce the use of fiber,this paper analyzes the influence of hybrid fiber layers on the mechanical properties of recycled high-strength concrete by changing the number of hybrid fiber layers.The experimental research shows that:with the change of the number of hybrid fiber layers,the compressive strength of recycled high-strength concrete has increased,but the increase is small,but the splitting tensile strength has increased significantly,among them,C2 group recycled high-strength concrete increased the most significantly,13.1%.With the change of the number of hybrid fiber layers,the brittleness decreases and the ductility increases compared with the reference group recycled high strength concrete.In this experiment,when the number of hybrid fiber layers is 4,all the test indexes get good results.

关 键 词：再生高强混凝土 混杂纤维 层布式 抗裂性能 

分 类 号：TU528.31[建筑科学—建筑技术科学]