TY - JOUR ID - 139148 TI - Stress-Strain Characteristics of Reactive Powder Concrete Under Cyclic Loading JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Dhundasi, A. A. AU - Khadirnaikar, R. B. AU - Momin, A. I. A. AD - Department of Civil Engineering, Basaveshwar Engineering College, Bagalkot, Affiliated to VTU, Belagavi, Karnataka, India AD - Department of Civil Engineering, BLDEA’s Vachana Pitamaha Dr. P.G Halakatti College of Engineering and Technology Vijayapur, Affiliated to VTU, Belagavi, Karnataka, India Y1 - 2022 PY - 2022 VL - 35 IS - 1 SP - 172 EP - 183 KW - Reactive powder Concrete KW - cyclic loading KW - Envelope Curve KW - Common Point Curve KW - Stability Point Curve DO - 10.5829/ije.2022.35.01A.16 N2 - Reactive powder concrete (RPC) is a type of ultra-high strength cement composite material. It has advanced mechanical properties and shows high ductility characteristics. Many researches have shown that normal and high strength concrete fails under cyclic stresses at load level below its static capacity. In the present study, the mix design guidelines to produce high strength RPC is provided. RPC with compressive strength of 120, 130 and 140MPa was produced. The mechanical properties are obtained for hardened concrete. The present study focuses on the investigation of reactive powder concrete under uniaxial compressive cyclic loading. The investigation was carried out on cubical and cylindrical specimens. The behaviour of RPC under cylic loads is studied by obtaining the stress-strain characteristics under monotonic loading and cyclic loading. Three main types of tests were performed. Stress-strain envelope curve, common point curve and stability point curves were established under repeated load cycles. The limiting stress values required for design are provided. It was concluded that peak stress of the stability point curve could be regarded as the maximum permissible stress. A nonlinear analytical expression was proposed for the normalised stresses and strain which shows a precise fit with the experimental data. The expression will assist in predicting the cyclic response of concrete required for constructional applications. UR - https://www.ije.ir/article_139148.html L1 - https://www.ije.ir/article_139148_a7aca92d78527e53d77c5ecddfef5435.pdf ER -