文章基本信息

标题：Effect of Basalt Fibre on Mechanical Properties of Concrete Containing Fly Ash and Metakaolin
本地全文：下载
作者：Elba Helen George ; B. Bhuvaneshwari ; G. S. Palani 等
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
期号：ICIASET
页码：444
出版社：S&S Publications
摘要：Application of composites science and technology can impart a major influence on the production of highperformance concrete for the enhanced service life of concrete structures. During the last three decades, research on FibreReinforced Concrete (FRC), one of the advanced composite materials, is carried out to enhance concrete toughness byusing high-modulus fibres as substitute, partially or totally to the conventional reinforcement, for structural applications. Inthe present investigation, basalt fiber is chosen as reinforcement material. Basalt fibre is a single material fibremanufactured by melting of basalt and extruding the molten basalt through small nozzles to produce continuous filamentsof basalt fibre. The basalt fibre used in the present study has a diameter of 13 μm and a length of 12 mm. As the addition ofpozzolanic materials to concrete leads to pozzolanic reaction, 2.5 % of fly ash and metakaolin by weight of cement is addedto concrete. The reaction involves the consumption of hydration product, Ca(OH)2 and the production of CSH, whichenhance the packing efficiency from micromechanics point of view. The grade of concrete chosen is M20 and therespective cubes, cylinders and beams are casted with and without basalt fibre reinforcement. The amount of basalt fibreadded is 1% of the total mass of the concrete. Mechanical characterisation such as compression, split tensile and flexuraltests are performed and the results show that, basalt reinforcement enhanced the split and tensile strength of the concrete.
关键词：Fibre reinforced concrete; basalt fibre; mechanical properties; micromechanics