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Mechanical properties of geopolymer lightweight brick with styrofoam pellet

Abdullah, Mohd Mustafa Al Bakri and Mohd Tahir, Muhammad Faheem and Abdul Kadir, Aeslina and Hussin, Kamarudin and W. Samson, W. Saiful Iskandar (2017) Mechanical properties of geopolymer lightweight brick with styrofoam pellet. In: Proceedings of the Green Construction and Engineering Education (GCEE) Conference 2017, 8–9 August 2017, East Java, Indonesia.

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Official URL: doi:10.1063/1.5003543

Abstract

The utilization of fly ash in brick as partial replacement of cement is gaining immense importance today, mainly on account of the improvement in the long-term durability of brick combined with ecological benefits. In this research, the lightweight brick was produced by using fly ash (class F) as a main material to replace Ordinary Portland Cement (OPC) in the composition of brick. Class F Fly Ash was mixed with an alkaline activator solution (a mixture of sodium silicate and NaOH), and styrofoam pellet was added to the geopolymer mixture to produce lightweight brick. The brick was prepared in two methods that is wet method and dry method due to different brick composition which is dry method for composition with sand and wet method for composition without sand. The bricks were cured in room temperature at 7 aging days. After 7 days, the compressive strength, water absorption, and density of the brick were investigated, where the optimum ratio for the best bricks has been determined from the lightweight density and has compressive strength more than minimum standard requirement. The best bricks are further produce for curing at 60°C in oven at 28 aging days. Those bricks also were characterized using optical microscope to measure the distribution of styrofoam in brick structure. From the result obtained, the brick that cured at 60°C in oven at 28 aging days has high strength compare to brick that cured in room temperature and at 7 day cured. The water absorption is decreasing as the curing temperature and aging days increased whereas density is increasing.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Civil and Environmental Engineering > Department of Water and Environmental Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 30 Sep 2019 03:19
Last Modified: 30 Sep 2019 03:19
URI: http://eprints.uthm.edu.my/id/eprint/11639
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