摘要
文章通过试验研究了在不同水灰比情况下,高强度和高弹性模量值的聚乙烯醇(polyvinyl alcohol,PVA)纤维对卵石混凝土的立方体抗压强度、弹性模量、劈裂抗拉强度及轴压应力-应变曲线等的影响。试验结果表明,PVA纤维的掺入会降低混凝土的抗压强度、弹性模量和泊松比,却能够显著提高混凝土的劈裂抗拉和抗折强度,同时混凝土的韧性和受压峰值应变也得到一定的提高。
The effects of high strength and high modulus polyvinyl alcohol(PVA) fiber on the mechanical properties of pebble concrete including cube compressive strength,elastic modulus,splitting tensile strength and axial stress-strain curves are studied under different water-cement ratio. The results indicate that PVA fiber can reduce the concrete compressive strength,elastic modulus and Poisson ratio,while it can effectively improve the splitting tensile strength and flexural strength,and it can also increase the toughness and compressive strain of concrete.
作者
蒋津
洪丽
高鹏
张前江
陈亚迪
JIANG Jin;HONG Li;GAO Peng;ZHANG Qianjiang;CHEN Yadi(School of Civil and Hydraulic Engineering,Hefei University of Technology,Hefei 230009,China)
出处
《合肥工业大学学报（自然科学版）》
CAS
北大核心
2019年第6期785-790,共6页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(51508146)
合肥工业大学博士学位专项基金资助项目(JZ2015HGBZ0131)
关键词
聚乙烯醇纤维
抗拉强度
泊松比
水灰比
应力-应变曲线
polyvinyl alcohol(PVA) fiber
tensile strength
Poisson ratio
water-cement ratio
stress-strain curve
