a new approach to improving durability of rice husk ash blended concrete with re-dispersible polymer powder

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 investigate the durability properties of rice husk ash polymer- modified concrete (rhapmc) matrix, the rhapmc mix of 1:2:3 proportions was used to prepare 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 a ratio of 1 to 7.5% by the weight of cement. the most common durability-related properties including water absorption, density, water permeability, ultrasonic pulse velocity, and compressive strength were experimentally investigated. the results showed a remarkable improvement in durability characteristics in the newly developed matrix of rhapmc, which could be used as a repair material in an aggressive environment.