Indexed In Scopus
  Scopus ID: 21100926589

Rheological and Strength Properties of Nano Silica and Nano Metakaolin in Self-compacting Concrete

Kavitha Eswaramoorthi, Lokesh Sekar, Elavarasan Rathinavelu and Udhayasakthi Ramasamy

Abstract

Self-compacting concrete (SCC) is a variant of special concrete renowned for its remarkable strength and endurance attributes. However, there are notable differences in the mix proportioning and testing procedures employed to determine the flow characteristics of this specific concrete in comparison to normal concrete. SCC is a variant of concrete that demonstrates remarkable workability, showcasing elevated levels of strength and performance attributes. The material possesses a distinctive characteristic of exhibiting smooth flow under its own gravitational force, even when traversing through tight or constricted sections, without encountering problems such as separation and exudation. It is achieved by decreasing the proportion of aggregate to cementitious materials, increasing the amount of paste, and using various admixtures and superplasticizers that enhance viscosity. Nano silica (NS) and nano metakaolin (NMK) are employed as partial substitutes for cement in varying proportions (0 to 12%). The current research findings indicate that including NS and NMK in SCC results in advantageous enhancements in both the rheological and strength characteristics.

Published on: November 01, 2023
doi: 10.17756/nwj.2023-s3-130
Citation: Eswaramoorthi K, Sekar L, Rathinavelu E, Ramasamy U. 2023. Rheological and Strength Properties of Nano Silica and Nano Metakaolin in Self-compacting Concrete. NanoWorld J 9(S3): S733-S738.

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