International Conference on Civil Engineering and Infrastructural Issues in Emerging Economies 2017 | |
Retrofitting of Reinforced Concrete Beams using Reactive Powder Concrete (RPC) | |
土木建筑工程;经济学 | |
Karthik, S.^1 ; Sundaravadivelu, Karthik^1 | |
School of Civil Engineering, SASTRA University, Thanjavur | |
613 401, India^1 | |
关键词: Coarse particles; Control beams; Damaged structures; Modes of failure; Reactive powder concrete; Reinforced concrete beams; Two point loadings; Ultimate loads; | |
Others : https://iopscience.iop.org/article/10.1088/1755-1315/80/1/012038/pdf DOI : 10.1088/1755-1315/80/1/012038 |
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学科分类:土木及结构工程学 | |
来源: IOP | |
【 摘 要 】
Strengthening of existing damaged structures is one of the leading studies in civil engineering. The purpose of retrofitting is to structurally treat the member with an aim to restore the structure to its original strength. The focus of this project is to study the behaviour of damaged Reinforced Concrete beam retrofitted with Reactive Powder Concrete (RPC) Overlay. Reinforced concrete beams of length 1200 mm, width 100 mm and depth 200 mm were casted with M30 grade of concrete in the laboratory and cured for 28 days. One beam is taken as control and are tested under two point loading to find out ultimate load. Remaining beams are subjected to 90 % ultimate load of control beams. The partially damaged beams are retrofitted with Reactive Powder Concrete Overlay at the full tension face of the beam and side overlay depends upon the respectable retrofitting techniques with 10 mm and 20 mm thick layer to find optimum. Materials like steel fibres are added to enhance the ductility by eliminating coarse particle for homogeneity of the structure. Finally, the modes of failure for retrofitted beams are analysed experimentally under two point loading & compared the results with Control beam.
【 预 览 】
Files | Size | Format | View |
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Retrofitting of Reinforced Concrete Beams using Reactive Powder Concrete (RPC) | 536KB | download |