Material design and characterization of pervious concrete reactive barrier containing nano-silica and fine pumice aggregate
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In this study, the physical and mechanical properties of pervious concrete (PC) containing nano-silica (NS) was carried out. Mix design based on the Taguchi method in three levels and four factors (water to cement ratio, aggregate to cement ratio, the percentage of nano-silica, and percentage of fine aggregate (FA)) were examined. Concrete properties such as compressive strength, density (D), permeability (P), and porosity were evaluated. Among nine mix designs, the optimum one according to Taguchi optimization results was found from experimental results: (W/C) = 0.26, (A/C) = 5, 6% (NS) and 20% (FA). The corresponding mechanical and physical properties had a compressive strength of 3.6 (MPa), permeability of 1.06 (cm/s), void ratio of 19.7 (%), and density of 879 (kg/m3). Adding NS (up to 6% of cement weight) and FA (up to 20% of aggregates weight) had an important effect on almost all tests especially on CS, and there was no impressive influence related to another factor (W/C, A/C) in all tests. It is noticeable that the influence of adding NS to the mix design on CS was higher than adding FA.
KeywordsPervious concrete Mix design Taguchi method Nano-silica
The authors are thankful to the Shahid Beheshti University for providing a grant.
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Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
- ACI 522-R (2013) The American Concrete Institute (Report on pervious concrete). Farmington Hills.Google Scholar
- Alighardashi, A., Mehrani, M.J., Ramezanianpour, A.M. (2018). Pervious concrete containing nano silica for nitrate removal from contaminated water. Environmental Science and Pollution Research, 2018. https://doi.org/10.1007/s11356-018-3008-9.
- ASTM C1754. (2012). Standard test method for density and void content of hardened pervious concrete. West Conshohocken: ASTM International.Google Scholar
- ASTM C39. (2017). Standard test method for compressive strength of cylindrical concrete specimens. West Conshohocken: ASTM International.Google Scholar
- Bortone, I. (2012). Groundwater protection by pervious adsorption barrier at solid waste landfills. Rome: Nova Science Publishers.Google Scholar
- Hashemi, S. H. (2013). Optimal reduction of the concrete mixture design containing nano-silica and micro-silica using Taguchi method. Journal of Concrete Research, 5, 45–53.Google Scholar
- Roy, R. (2010). A primer on the Taguchi method, Society of Manufacturing Engineers, 2nd edition, USA.Google Scholar
- Sadrmomtazi, A., Kohani Khoshkbijari, R., Tahmouresi, B. (2017) Effect of fly ash and silica fume on transition zone, pore structure and permeability of concrete. Magazine of Concrete Research. http://dx.doi.org/10.1680/jmacr.16.00537.
- Us, E. P. A. (2002). Field applications of in situ remediation technologies: pervious reactive barriers, office of solid waste and emergency response. Washington: U.S. Environmental Protection Agency.Google Scholar