Paper

Effects of Additive on the Physical and Thermal Conductivity of Fired Clay Brick


Authors:
Nonthaphong Phonphuak
Abstract
This research studies physical, mechanical and thermal properties of fired clay bricks due to the effects of charcoal addition. Thermal performance with the physical, mechanical and microstructures properties were also investigated. All samples were fired at 950 oC. The results indicated that the density of fired clay bricks was reduced by up to 10 wt%, depending on the percentage of charcoal incorporated into the raw materials. Compressive strength of fired clay bricks samples decreased according to the percentage of charcoal included in the mix. When the percentage of charcoal was up to 10 wt%, water absorption and apparent porosity was rapidly increased. It was apparent that as the percentage of charcoal increased in the body, the porosity was clearly observed. From the results, it can be reduced that thermal conductivity decreases with decrease in density and increase in fired clay bricks porosity.
Keywords
Brick; Porosity; Compressive Strength; Density; Charcoal
StartPage
95
EndPage
99
Doi
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