Lightweight Concrete with Using Coconut Shell

Stalwart P¹, Suthakar G², Raghul M³, Suresh T⁴

^1,2,3,4Department of Civil Engineering, Rohini College of Engineering and Technology, India

Abstract

In this study, coconut shell is used as lightweight aggregate in concrete. The properties of coconut shell and coconut shell aggregate concrete is examined and the use of coconut shell aggregate in construction is tested. Moisture content and water absorption were 4.20% and 24% respectively and these values are more compared to conventional aggregate. Coconut shell exhibits more resistance against crushing, impact and abrasion compared to conventional aggregate. Density of coconut shell is in the range of 550 - 650 kg/m3 and these are within the specified limits for lightweight aggregate. There is no need to treat the coconut shell before use as an aggregate except for water absorption. The presence of sugar content in the coconut shell, as long as it is not in a free sugar form, does not affect the setting and strength of concrete. Hydration test on coconut shell fines with cement indicates that the inhibitory index for coconut shell fines with cement can be classified as low and no pre-treatment is required. Coconut shell-cement ratio has been optimized to satisfy the criteria of structural lightweight concrete.

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Cite this Article as Follows

Stalwart P, Suthakar G, Raghul M, Suresh T. "Lightweight Concrete with Using Coconut Shell." International Conference on Advanced Innovations in Engineering and Technology (2017): 11. Print.