摘要
为研究钢纤维与PVA纤维掺量对混凝土抗冲击性能的影响,对两种纤维不同掺量的混杂纤维混凝土进行落锤冲击试验,并设计素混凝土作为对照试验。试验结果表明,单掺纤维混凝土中,钢纤维较PVA纤维对混凝土抗冲击性能提升要大,单掺2%钢纤维时强度最大。加入PVA纤维使其强度和刚度得到再次的提升,其中2%钢纤维、0.1%PVA纤维掺量的增强效果最为显著,屈服载荷较素混凝土得到30%左右的提升,并通过不同冲击能量试验进行了验证。
In order to research the influence on impact resistance properties of the steel-PVA hybrid fibers concrete it use the drop hammer test instrument to do impact test on two different fiber types contents, and design plain concrete as control experiment.The experimental re- suits show that steel fibers is better than PVA fibers in the single fiber concrete, and 2% steel fibers have the best strength.It will be improved in strength and stiffness after PVA fibers.In the result 2% steel fibers,0.1% PVA fibers have the best enhancement effect,and yield load has 30 percent improvement than plain concrete.At the same time the result has been verified by different impact energy experiments.
出处
《混凝土》
CAS
北大核心
2017年第12期51-53,62,共4页
Concrete
基金
国家自然科学基金项目(51478462
51508565)
关键词
钢-PVA混杂纤维
混凝土
抗冲击性能
落锤试验
steel-PVA hybrid fibers
concrete
impact resistance property
drop hammer test
作者简介
魏金源（1992-），男，硕士研究生。联系地址：江苏省徐州市西阁街85号（221000）联系电话：15105211407
