Utilization of Yatagan Power Plant Fly Ash in Production of Building Bricks

Date

2017-09-15

Author

Önel, Öznur
TANRIVERDİ, MEHMET
ÇİÇEK, TAYFUN

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

223
views

0
downloads

Fly ash is a by-product of coal combustion, which accumulates in large quantities near the coal-fired power plants as waste material. Fly ash causes serious operational and environmental problems. In this study, fly ash from Yatagan thermal power plant was used to produce light-weight building bricks. The study aimed to reduce the problems related to fly ash by creating a new area for their use. The optimum process parameters were determined for the production of real size bricks to be used in construction industry. The commercial size bricks (200 x 200 x 90-110 mm) were manufactured using pilot size equipment. Mechanical properties, thermal conductivity coefficients, freezing and thawing strengths, water absorption rates, and unit volume weights of the bricks were determined. Etringite (Ca(6)A(l)2 (SO4)(3) (OH)(12) 25(H2O)) and Calcium Silicate Hydrate (2CaO. SiO2.4H(2)O) were identified as the binding phases in the real size brick samples after 2 days of pre-curing and 28 days curing at 50 degrees C and 95% relative moisture. The water absorption rate was found to be 27.7 % in terms of mass. The mechanical and bending strength of the brick samples with unit volume weight of 1.29 g. cm(-3) were determined as 6.75 MPa and 1,56 MPa respectively. The thermal conductivity of the fly ash bricks was measured in average as 0,340 W m(-1) K-1. The fly ash sample produced was subjected to toxic leaching tests (Toxic Property Leaching Procedure (EPA-TCLP 1311), Single-step BATCH Test and Method-A Disintegration Procedure (ASTM)). The results of these tests suggested that the materials could be classified as non-hazardous wastes / materials.

Subject Keywords

Hydrothermal reactions, Pozzolanic reaction, Fired bricks, Clay

URI

https://hdl.handle.net/11511/57160

DOI

https://doi.org/10.1088/1755-1315/95/4/042012

Collections

Department of Mining Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Utilization of wet-handled and dry-handled coal bottom ashes in portland cement based composites Tirkeş, Sera; Akgül, Çağla; Department of Civil Engineering (2021-9-7) Coal bottom ash (BA) is a coarse, granular, incombustible by-product collected from the bottom of coal-burning furnaces. Traditionally, it has been handled by wet-handling systems (WHS) that use large amounts of water for cooling and conveying BA. WHS relies on established technologies such as impounded hoppers or submerged scraper conveyors. However, the need for water treatment, environmental concerns such as contaminated water, and high operational costs caused a necessary shift from WHS to more sustaina...
Stabilization of an expansive artificial clay mixture with C/F type fly ash and sand Çokça, Erdal (2002-08-01) Fly ash, which is an industrial by-product from coal-fired thermal power plants, is accumulating in large quantities in many countries. In this study the possible utilization of fly ash as a stabilizing agent for expansive soils is investigated. Two types of fly ash, classified as types F and C according to ASTM C 618 (ASTM, 1993), were employed together with sand to stabilize a highly expansive clay mixture. Classification tests and chemical composition of the materials as well as free swell, primary swell...
Selective sulfate sorption from boric acid factory process liquor: Chitosan-bentonite biocomposite film synthesis as sorbent Kaya, Fatih; Ozer, Ahmet (2022-09-01) Chitosan is a natural polymer that is renewable, biocompatible, and biodegradable. Bentonite is a natural mineral with low environmental effects. For this reason, chitosan- bentonite biocomposite film was synthesized as a sorbent and its characterized by FT-IR, SEM, EDX, CHNS elemental analysis and thermal analysis techniques. The sorbent was utilized for selective sulfate (SO42  ) sorption from boric acid factory process liquor, because one of the most important problems in the boric acid productio...
Combustion characteristics of coal briquettes. 1. Thermal features Altun, Naci Emre; Bagci, AS (2003-09-01) In this study, the influence of some of the most important briquetting parameters on the combustion and thermal properties of coal briquettes were studied in detail. For this purpose, briquettes with various organic (molasses, sulfide liquor, carboxyl methyl cellulose, Peridur XC3, and Peridur C10) and inorganic agents (cement and bentonite) were prepared, to be combusted in a reaction cell that was complemented with a continuous gas analyzer unit. Furthermore, using the binding agent that provided the most...
Experimental and numerical analysis of dry forward combustion with diverse well configuration Akın, Serhat; Kök, Mustafa Verşan (2002-07-01) In situ combustion is a thermal recovery technique where energy is generated by a combustion front that is propagated along the reservoir by air injection. Most of the previously conducted studies report thermal and fluid dynamics aspects of the process. Modeling in situ combustion process requires extensive knowledge of reservoir data as well as reaction kinetics data. Unfortunately, limited kinetic data are available on the rates and the nature of partial oxidation reactions and the high-temperature combu...

Citation Formats

Ö. Önel, M. TANRIVERDİ, and T. ÇİÇEK, “Utilization of Yatagan Power Plant Fly Ash in Production of Building Bricks,” 2017, vol. 95, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57160.