Microstructural properties of nano-rice husk ash concrete


In modern science, the material behavior can be controlled by incorporating nano-building blocks or objects in concrete. Nanoparticle used in this study is rice husk ash. By using SEM analysis, the size of the nanoparticle was found to be in a range of 70–90 nm. In this investigation, the durability characteristics of concrete modified with fly ash and nano-rice husk ash in M35 grade are determined. Two different samples were prepared: one by replacing 3% nano-RHA with concrete and the other sample by replacing 20% fly ash with concrete. The tests conducted in this works are carbonation test, rapid chloride penetration test, surface and crushed pH test, antibacterial test, porosity test. Nano-RHA concrete shows better results when compared with fly ash concrete.

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We express our sincere acknowledgement to the management of Sathyabama Institute of Technology for providing an opportunity to carry out this research work.

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Correspondence to T. R. Praveenkumar.

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Praveenkumar, T.R., Vijayalakshmi, M.M. Microstructural properties of nano-rice husk ash concrete. Nanotechnol. Environ. Eng. 4, 9 (2019). https://doi.org/10.1007/s41204-019-0056-4

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  • Fly ash
  • Nano-rice husk ash
  • Antibacterial test