Study on Flexural Behaviour of Ternary Blended Reinforced Self Compacting Concrete Beam with Conventional RCC Beam

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

土木建筑工程;经济学

Marshaline Seles, M.^1 ; Suryanarayanan, R.^1 ; Vivek, S.S.^1 ; Dhinakaran, G.^1

School of Civil Engineering, SASTRA University, Thanjavur

613401, India^1

关键词: Chemical admixture;    Conventional concrete;    Experimental analysis;    Filling abilities;    Flexural behavior;    Load-deflection curve;    Metakaolins;    Split tensile strengths;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/80/1/012026/pdf
DOI  :  10.1088/1755-1315/80/1/012026

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The conventional concrete when used for structures having dense congested reinforcement, the problems such as external compaction and vibration needs special attention. In such case, the self compacting concrete (SCC) which has the properties like flow ability, passing and filling ability would be an obvious answer. All those SCC flow behavior was governed by EFNARC specifications. In present study, the combination type of SCC was prepared by replacing cement with silica fume (SF) and metakaolin (MK) along with optimum dosages of chemical admixtures. From the fresh property test, cube compressive strength and cylinder split tensile strength, optimum ternary mix was obtained. In order to study the flexural behavior, the optimum ternary mix was taken in which beam specimens of size 1200 mm x 100 mm x 200 mm was designed as singly reinforced section according to IS: 456-2000, Limit state method. Finally the comparative experimental analysis was made between conventional RCC and SCC beams of same grade in terms of flexural strength namely yield load & ultimate load, load- deflection curve, crack size and pattern respectively.