碳纤维改性透水混凝土的制备及力学性能研究  

Research on the Preparation and Mechanical Properties of Carbon Fiber Modified Permeable Concrete

作　　者：王叶雄 冯圣 WANG Yexiong;FENG Sheng(Hunan Pilot Free Trade Zone Airport Industry Investment Group Co.,Ltd.,Changsha 410000,Hunan,China;Hunan Zhongda Design Institute Co.,Ltd.,Changsha 410000,Hunan,China)

机构地区：[1]湖南自由贸易试验区临空产业投资集团有限公司,湖南长沙410000 [2]湖南中大设计院有限公司,湖南长沙410000

出　　处：《工程技术研究》2024年第4期128-130,共3页Engineering and Technological Research

摘　　要：为探究碳纤维对透水混凝土的改性方法,明确相关参数对其物理力学性能的影响规律,文章开展了一系列室内试验研究。考虑碳纤维几何特征、掺量等核心参数,在室内制备标准试件,研究了碳纤维长度、掺量等对透水混凝土物理、力学性能的影响机制,以及对其透水性能的影响。研究结果表明,碳纤维长度、体积掺量对透水混凝土的力学性能有较大影响,纤维长度越长、掺量越大,透水混凝土的力学性能提升效果越显著,其中,抗折性能最高可提升70%。但是,碳纤维同时也会降低改性混凝土的透水性能,因此,在制备碳纤维改性混凝土时,应兼顾力学性能与透水性,合理设计。In order to explore the modification method of carbon fiber on permeable concrete and clarify the influence of relevant parameters on its physical and mechanical properties,a series of indoor tests were carried out.Considering core parameters such as geometric characteristics and content of carbon fiber,standard specimens were prepared indoors,and the influence mechanism of carbon fiber length and content on the physical and mechanical properties of permeable concrete and its influence on permeability were studied.The results show that the length and content volume of carbon fiber have a great influence on the mechanical properties of permeable concrete.The longer the fiber length and the greater the content,the more significant the improvement effect of the mechanical properties of permeable concrete.Among them,the flexural performance can be increased by up to 70%.However,carbon fiber will also reduce the permeability of modified concrete.Therefore,in the preparation of carbon fiber modified concrete,mechanical properties and permeability should both be taken into account,and reasonable design should be carried out.

关 键 词：道路工程 透水混凝土 碳纤维 抗折性能 透水系数 

分 类 号：U414[交通运输工程—道路与铁道工程]