The Effect of Eggshells Ash on the Compressive Strength of Concrete

Abstract:

This paper presents the main results of the research carried out to analyse the mechanical properties of concrete incorporating with eggshells waste. The use of eggshells ash in concrete formulations was investigated as an alternative to landfill disposal. The objective of this study is to find the suitability of eggshells ash as cement replacement in concrete. The cement has been replaced by waste eggshells ash accordingly in the range of1% and 2.5%. The eggshell ash passing the 90μm sieve was used in the investigation. By using 1% and 2.5% amount of the waste eggshells ash, water cement ratio were designed which is 0.47, 0.55 and 0.70 and compared in terms of slump and strength with the conventional concrete. The concrete specimens were tested in the series of compression test to determine the strength of concrete for 3, 7 and 28 days. As a result, the additional of eggshells ash to the concrete mix increase the strength of the concrete. In short, the higher percentage of eggshells ash in the mix means a higher compressive strength for the concrete. Hence, it is suggested that eggshells ash can be used as partially cement replacement in concrete.

• Periodical: Key Engineering Materials (Volume 728)
• Pages: 402-407
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.728.402
• Online since: January 2017
• Authors: Fazeera Ujin, Kamran Shavarebi Ali, Zarina Yasmin Hanur Harith
• Keywords: Compressive Strength, Construction Material, Eggshells Ash, Solid Waste

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