Energy savings, thermal conductivity, micro and macro structural analysis of fired clay bricks incorporating cigarette butts

Kurmus, Halenur; Mohajerani, Abbas

doi:10.1016/j.conbuildmat.2021.122755

Cited by 54 publications

(20 citation statements)

References 37 publications

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“…ranged from 0.374 to 0.425 W/m‐K, offering excellent thermally resilient building blocks. Various studies have reported similar findings whereby the addition of organic material in the production of fired bricks resulted in the decrease in density and thermal conductivity 19,24,25,26,53,54 . For instance, previous authors achieved a thermal conductivity of 0.65 W/m‐K for fired clay bricks by adding 10% of EV to the clay basis.…”

Section: Resultsmentioning

confidence: 69%

Effects of expanded vermiculite on the properties of fired bricks from water treatment sludge

Gençel

Kizinievič

Sütçü

et al. 2021

Int J Applied Ceramic Tech

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In the present study, the suitability of using water treatment sludge (WTS) as the main raw material and expanded vermiculite (EV) as aggregate in the production of fired bricks was investigated. Mixtures containing between 75%-100% WTS by weight (wt.) and 5%-25% EV by wt. were prepared at various proportions. The mixtures were compressed under 40 MPa pressure and fired at 1000 • C. It was found the incorporation of EV in fired bricks resulted in a decrease in thermal conductivity, compressive strength, and bulk density and an increase in apparent porosity and water absorption. For the addition of 5%-25% EV by wt., bulk density ranged between 2.01 and 1.69 kg/m 3 , compressive strength 19.3 and 8.3 MPa, water absorption 21.1% and 10.1%, and thermal conductivity 0.678 and 0.374 W/m-K, respectively. Based on the promising physical and mechanical properties, fired bricks incorporating WTS and EV can potentially offer an alternative to the traditional production of clay bricks while adhering to the principle of a circular economy.

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Section: Resultsmentioning

confidence: 69%

Effects of expanded vermiculite on the properties of fired bricks from water treatment sludge

Gençel

Kizinievič

Sütçü

et al. 2021

Int J Applied Ceramic Tech

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“…In comparison to clay, BG was found to have a higher concentration of sodium oxide (Na 2 O), a lower concentration of potassium oxide (K 2 O), and a lower concentration of aluminium oxide (Al 2 O 3 ), which results in the formation of a glassy phase with low viscosity that fills the pores within the brick structure, reducing porosity and increasing thermal conductivity. In addition, the concentrations of SiO 2 ( 46.92%) and Al 2 O 3 (15.45%) in the clay soil were within the recommended range of 20% to 50% for SiO 2 and 10% to 20% for Al 2 O 3 of brick making [15,16].…”

Section: Chemical Analysis Of Raw Materialsmentioning

confidence: 60%

Recycling Crushed Waste Beer Bottle Glass in Fired Clay Bricks

et al. 2021

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Waste glass is a readily available domestic material. Each year, around 257,000 tonnes of glass waste are produced in Victoria, and the majority is glass packings. Typically, mixed waste glass cullet is deposited in landfills due to the limited recycling techniques. As a result, landfills are facing a growing issue. Therefore, this study investigates the addition of waste beer bottle glass (BG) in fired clay bricks and examines the effects of varying firing temperatures on the physical and mechanical properties of the manufactured samples. Clay bricks containing 10% BG at a firing temperature of 950 °C depicted similar compressive strength results (41 MPa) to the control samples (42 MPa). The results of all tested bricks were found to be below the water absorption limit of 17%. The thermal conductivity of the bricks incorporating BG was investigated, and it was found that the thermal performance improved with the decreasing firing temperature. Moreover, an initial rate of absorption (IRA), XRD, and XRF analysis was conducted. The experimental results have been discussed and compared with the recommended acceptable properties for standard bricks.

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“…This mechanical property is calculated considering the resistance offered by a unit area (A) of the material of which a member is made to an external applied load (F) using Equation (1), where stress is represented by σ [14].…”

Section: Stressmentioning

confidence: 99%

Implementation of an automated dryer with solar collector

Regino-Ubarnes

Jaramillo

Moreno-Garcia

2022

J. Phys.: Conf. Ser.

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This research work consists of the development of an automated sustainable drying system using forced and preheated air to reduce the production time of handmade bricks, so a dryer witha solar collector wasimplemented to take advantage of the energy from solar radiation. A virtualinstrument was developed, which allows to visualize the variables of temperature and humidityinside the drying chamber, additionally a temperature control was implemented, this control allows the system to maintain a constant temperature during the drying process. Samples were taken from the production of the brick kiln “El Tejar” and dried by this device, thenthe drying times and their physical and mechanical properties were compared, finding that the bricks dried with the proposed prototype retained these properties. As for the compressive strength tests for samples of both processes was around 30.6 Kgf/cm2 and 31.2 Kgf/cm2, the deflection resistance was around 1.2 Kgf/cm2 and 1.3 Kgf/cm2, the initial absorption rate was around 0.3 g/cm2/min and 0.4 g/cm2/min, and finally the percentage of water absorption for both processes were around 12.9% and 13.1%. The difference lies in the drying times, since drying in the artisanal brick kilns takes about 15 daysin the proposed dryer takes 9 days, resulting in a decrease of 40% in this process.

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Energy savings, thermal conductivity, micro and macro structural analysis of fired clay bricks incorporating cigarette butts

Cited by 54 publications

References 37 publications

Effects of expanded vermiculite on the properties of fired bricks from water treatment sludge

Effects of expanded vermiculite on the properties of fired bricks from water treatment sludge

Recycling Crushed Waste Beer Bottle Glass in Fired Clay Bricks

Implementation of an automated dryer with solar collector

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