Abstract
This study investigated the influence of mineral admixtures (fly ash, silica fume, metakaolin) and curing conditions (water immersion, polyethylene glycol, gunny bags, accelerated curing) on the properties of self-compacting concrete (SCC). The rheological properties, compressive strength, chloride penetration resistance, and microstructure were evaluated. Incorporating mineral admixtures improved the workability, strength (up to 53% increase), and durability of SCC compared to plain mixes, with 20% metakaolin replacement optimal. Water immersion curing enhanced the compressive strength (3–15% increase) and chloride resistance (up to 30% decrease in migration coefficient) owing to improved hydration and microstructural refinement. Mineral admixtures reduced the sensitivity of SCC to the curing method. Microstructural analysis showed higher density and additional C-S-H phases with mineral admixtures under wet curing. The study demonstrates that optimized SCC containing appropriate supplementary cementitious materials and proper external curing can achieve high performance.
Recommended Citation
Chava, Venkatesh; M.v., Seshagiri Rao; Munugala, Praveen Kumar; and Chereddy, Sonali Sri Durga
(2024)
"Effect of Mineral Admixtures and Curing Regimes on Properties of Self-Compacting Concrete,"
Journal of Sustainable Construction Materials and Technologies: Vol. 9:
Iss.
1, Article 3.
https://doi.org/10.47481/jscmt.1383493
Available at:
https://commons.yildiz.edu.tr/jscmt/vol9/iss1/3