@article { author = {Bangwar, D.K. and Saand, A. and Keerio, M. A. and Zardari, M.A.}, title = {A new approach to improving durability of rice husk ash blended concrete with re-dispersible polymer powder}, journal = {Scientia Iranica}, volume = {27}, number = {4}, pages = {1858-1865}, year = {2020}, publisher = {Sharif University of Technology}, issn = {1026-3098}, eissn = {2345-3605}, doi = {10.24200/sci.2018.21079}, abstract = {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.}, keywords = {Durability,Polymer,RHA,RHAPMC,Permeability,Water Absorption,Ultrasonic Pulse Velocity}, url = {https://scientiairanica.sharif.edu/article_21079.html}, eprint = {https://scientiairanica.sharif.edu/article_21079_be44ba9ca0c7369283064d3284dc6ce8.pdf} }