Behaviour of Nano Silica in Tension Zone of High Performance Concrete Beams

International Conference on Civil Engineering and Infrastructural Issues in Emerging Economies 2017

土木建筑工程;经济学

Jaishankar, P.^1 ; Vivek, D.^1

School of Civil Engineering, SASTRA University, Thanjavur

613 401, India^1

关键词: Cementitious materials;    Chemical compositions;    Essential features;    Ground granulated blast furnace slag;    High strength concretes;    Other properties;    Superplasticizers;    Water to cement (binder) ratios;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/80/1/012028/pdf
DOI  :  10.1088/1755-1315/80/1/012028

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

High performance concrete (HPC) is similar to High strength concrete (HSC).It is because of lowering of water to cement ratio, which is needed to attain high strength and generally improves other properties. This concrete contains one or more cementitious materials such as fly ash, Silica fume or ground granulated blast furnace slag and usually a super plasticizer. The term 'high performance' is somewhat different because the essential feature of this concrete is that it's ingredients and proportions are specifically chosen so as to have particularly appropriate properties for the expected use of the structure such as high strength and low permeability. Usage of nano scale properties such as Nano SiO2can result in dramatically improved properties from conventional grain size materials of same chemical composition. This project is more interested in evaluate the behaviour of nano silica in concrete for 5%, 10%, and 15% volume fraction of cement. Flexural test for beams were conducted with two point loads, at different percentage as mentioned above. From results interpolated, Nano silica with higher order replacement gives optimized results compared to control specimens.