高韧性纤维混凝土特性及工程应用  

Properties of high tenacity fiber concrete and its engineering application

作　　者：邓友生[1] 陈国军 李培鹏[2] 杨彪 冯爱林 郑云方 DENG Yousheng;CHEN Guojun;LI Peipeng;YANG Biao;FENG Ailin;ZHENG Yunfang(School of Architecture&Civil Engineering,Xi′an University of Science and Technology,Xi′an 710054,China;School of Civil Engineering&Architecture,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]西安科技大学建筑与土木工程学院,陕西西安710054 [2]武汉理工大学土木工程与建筑学院,湖北武汉430070

出　　处：《混凝土》2023年第5期158-162,174,共6页Concrete

基　　金：国家自然科学基金(51878554,41672308);陕西省自然科学基础研究计划重点项目(2018JZ5012)。

摘　　要：高韧性纤维混凝土具有高强、高韧、高耐久性、良好的环保性能及裂缝无害化分布等特点,能显著改善传统混凝土强而不韧、脆性易裂的根本缺陷。针对影响纤维混凝土性能的主要因素,主要从抗压强度、抗折强度等方面分析其力学性能,并从微观角度探索纤维混凝土中纤维发挥增韧作用的机理及工程应用状况,最后指出了高韧性纤维混凝土研究存在的问题并展望其研究与发展前景。High-toughness fiber concrete has the characteristics of high strength,high toughness,high durability,good environmental performance and harmless distribution of cracks,which can significantly improve the fundamental defects of traditional concrete that is strong but not tough and brittle and easy to crack.In view of the main factors affecting the performance of fiber concrete,the mechanical properties are mainly analyzed from the aspects of compressive strength and flexural strength,and the mechanism of the toughening effect of fiber in fiber concrete and the status of engineering application are explored from a microscopic point of view.Finally,the high toughness is pointed out.The existing problems of fiber concrete research and prospects for its research and development.

关 键 词：高韧性纤维混凝土 聚乙烯醇纤维 抗压强度 弯曲韧性 

分 类 号：TU528.572[建筑科学—建筑技术科学]