Publication: The effects of egg shell powder as cement replacement material in light weight concrete
Date
2013
Authors
Safwan Asnawi Ahmad Zaki
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Abstract
Each year, close to 30 percent of the eggs we consume are broken and processed or powdered into foods such as cakes mixes, mayonnaise, noodles, and fast foods. That translates into over 50 million cases of eggs (at 30 dozen eggs to the case) used annually by the food industry. About 250 000 tons of egg shell waste is produce annually worldwide by the food processing only. Therefore by using eggshell waste as cement replacement material can help to reduce environmental issues and may give positive impact on Malaysian construction building as well as worldwide concrete usage.
There are two main objectives of this research. Firstly, is to determine the effects of egg shell powder as cement replacement material in light weight concrete in terms of slump and compressive strength. Secondly is to identify the optimum percentage of egg shell powder in light weight concrete. There are total of 9 cubes were cast for 3, 7 and 28 days of curing. The percentage of egg shell used is 5%, 10%, 20% and 30%. After each of curing days, the cubes were test using compression machine and data was recorded to determine the optimum mix proportion of the concrete. The result shows that incorporation of egg shell can improved compressive strength of light weight concrete compared to control mix. The optimum mix proportion was achieved at 10% of egg shell used in the light weight concrete.
Description
TP884.L5. S23 2013
Keywords
Lightweight concrete