Abstract
The aim of this study is to evaluate the effect of the different types of fly ash on the compressive strength properties of sintered briquettes. Thermal gravimetric (TG) analysis was carried out. The chemical composition and physical properties of the materials used were determined. Particle size distribution and microstructure elemental analyses of the materials used were carried out by a particle size analyzer (Mastersizer) and a scanning electron microscope (SEM-EDS). Following the characterization of the materials, briquettes were prepared by sintering at different temperatures. Compressive strength test results of the briquette samples indicated that briquettes with a compressive strength value of 47.45 N/mm2can be produced. The results obtained exceed the Turkish standard (TS EN 771-1) requirements (9.8–23.54 N/mm2). SEM-EDS results showed that briquette samples made with Tunçbilek (T) fly ash had a higher percentage of the glassy phase than the other briquette samples. Due to this microstructure, it results in higher compressive strength value.
Highlights
As an industrial waste, fly ash presents some environmental and storage problems; it has been used widely as an excellent mineral additive in the construction industry [1, 2]
This study presents comprehensive details about the utilization of different types of fly ash that were collected from different thermal power plants (Cayırhan, Orhaneli, Seyitomer, and Tuncbilek) in Turkey and that were used to produce briquettes that have high compressive strength values
It can be concluded that the soil is suitable for brick production according to the American Association of State Highway and Transportation Officials (AASHTO)
Summary
Fly ash presents some environmental and storage problems; it has been used widely as an excellent mineral additive in the construction industry [1, 2]. There are many studies investigating fly ash and its use as an additive in cement mortars [4, 5]. Fly ash is used as an additive in the production of briquettes [6,7,8,9,10,11]. This study presents comprehensive details about the utilization of different types of fly ash that were collected from different thermal power plants (Cayırhan, Orhaneli, Seyitomer, and Tuncbilek) in Turkey and that were used to produce briquettes that have high compressive strength values
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