硅酸盐通报2018，Vol.37Issue(5)：1525-1530,1537,7.
混杂纤维对NC的力学性能影响研究
Effect of Hybrid Fiber on Mechanical Properties of NC
摘要
Abstract
Fiber has been widely used in concrete because of its small deformation , high ductility and high strength, but due to the fiber performance and size of different types are not the same , which leads to the difference of mechanical properties on ordinary concrete , therefore, the cube compressive strength, axial compressive strength, splitting tensile strength, flexural strength and deformation performance of single fiber, two yuan hybrid fiber and three yuan hybrid fiber reinforced concrete were studied , the strengthening rule of fiber reinforced concrete was summarized .The results show that the addition of different types of fibers, the tensile resistance of fiber concrete crack makes avoid brittle failure form and has the characteristics of ductile fracture ; the flexural strength is most sensitive to fibers and is higher than that of ordinary concrete, the hybrid fiber is more obvious than the single fiber reinforced concrete , and the maximum increase is 1.3 times of the corresponding strength of ordinary concrete ; for the peak stress, the peak strain and the modulus of elasticity , the fiber concrete is basically lower than that of the ordinary concrete; the tangent modulus of fiber reinforced concrete gradually decreases with the increase of stress.关键词
再生纤维/劈裂抗拉/弹性模量/强度比Key words
regenerated fibre/splitting tensile/modulus of elasticity/intensity ratio分类
建筑与水利引用本文复制引用
徐晋,樊广利,张明明,王社良..混杂纤维对NC的力学性能影响研究[J].硅酸盐通报,2018,37(5):1525-1530,1537,7.基金项目
国家自然科学基金(51178388) （51178388）
陕西省教育厅重点实验室科研计划项目(11JS059,12JS055) （11JS059,12JS055）
陕西省攻关项目(2014K06-34) （2014K06-34）
