混杂纤维增强水泥基复合材料抗冲击性能研究  

Study on impact resistance of hybrid fiber reinforced cement based composite material

作　　者：孙巍巍[1] 张正洋[1] 董浩林[1] 黄庆康 

机构地区：[1]南京理工大学土木工程系,江苏南京210094

出　　处：《混凝土》2016年第12期86-89,共4页Concrete

基　　金：国家自然科学基金(51308297;51578289);南京理工大学本科生科研训练立项资助

摘　　要：为了研究纤维体积率、纤维类型及水胶比对混杂FRCC抗冲击性能的影响,参照ACI 544建议的落锤冲击试验,通过自行设计的自由落锤冲击试验装置,进行了抗冲击性能对比试验。试验结果表明:与普通水泥基材相比,混杂FRCC的抗冲击性能有了显著的提升,且随纤维体积率的提升而提升;对混杂FRCC抗冲击性能的提升效果:PP纤维<PVA纤维<SE纤维;混杂FRCC的抗冲击性能随水胶比的提升呈下降趋势。In order to study the impact resistance of the hybrid-FRCC affected by the fiber volume ratio, tiber type, and water cement ratio, the drop stamp testing was conducted according to the suggestion of the ACI 544.Though self-designed free drop stamp test equipment, The results show that the impact resistance are remarkably improved because of the incorporation of tiber,and the impact resistance of the hybrid-FRCC is improving along with the improvement of the fiber volume ratio.The SE tiber resistance impact performance was dominant, followed by PVA fiber.With the increase of the water binder ratio,the the impact resistance of the material was decreased.

关 键 词：混杂FRCC 自由落锤 体积率 水胶比 抗冲击性能 

分 类 号：TU528.04[建筑科学—建筑技术科学]