TY - JOUR ID - 21079 TI - A new approach to improving durability of rice husk ash blended concrete with re-dispersible polymer powder JO - Scientia Iranica JA - SCI LA - en SN - 1026-3098 AU - Bangwar, D.K. AU - Saand, A. AU - Keerio, M. A. AU - Zardari, M.A. AD - Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Nawabshah, Sindh, Pakistan AD - Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Nawabshah, Sindh, Pakistan. Y1 - 2020 PY - 2020 VL - 27 IS - 4 SP - 1858 EP - 1865 KW - Durability KW - Polymer KW - RHA KW - RHAPMC KW - Permeability KW - Water Absorption KW - Ultrasonic Pulse Velocity DO - 10.24200/sci.2018.21079 N2 - An experimental investigation was conducted to improve the limitation of Rice Husk Ash (RHA) blended concrete in terms of durability, by incorporating Re-dispersible Polymer Powder. To examine durability properties of Rice Husk Ash Polymer-Modified Concrete (RHAPMC) matrix, the RHAPMC mix of 1:2:3 proportions was used to prepare the specimens. To prepare Rice Husk Ash-Modified Mix (RHAMM), 10% of RHA was replaced with cement. RHAPMC was made with the inclusion of polymer at the ratio of 1 to 7.5% by the weight of cement. Most common durability related properties, i.e. water absorption, density, water permeability, ultrasonic pulse velocity and compressive strength were experimentally investigated. The results showed a remarkable improvement in durability characteristics in newly developed matrix of rice husk ash polymer modified concrete and could be used as a repair material in aggressive environment. UR - https://scientiairanica.sharif.edu/article_21079.html L1 - https://scientiairanica.sharif.edu/article_21079_be44ba9ca0c7369283064d3284dc6ce8.pdf ER -