Porous clay bricks produced by
adding 5%, 10%, 15% and 20% by weight of Basalt Cutting Waste (BCW) were
manufactured by semi-dry pressing process. BCW (Karacadağ, Diyarbakir, Turkey)
was added to brick raw material as an additive in order to increase porosity
and strength. The chemical composition and thermal behaviors of raw materials
were investigated and SEM analysis was performed. Brick mixes containing
different proportions of BCW were formed and then fired at 900 and 1000° C for
two hours. Porosity, water absorption, compressive strength, thermal conductivity
and microstructure of the samples were examined. It was observed that the porosity ratios were increased by up to
34% with the addition of BCW, however, compressive strength (at least 28 MPa)
decreased. However, the compressive strength was found to be higher than the
required standards. The thermal conductivity of samples with the addition of
20% BCW decreased from 0.98 up to 0.72 W / mK compared to the reference sample,
which also corresponds to a reduction of 26.5% in proportion to the reference
sample along with the increase in porosity. The increase in firing temperature
also affected the mechanical and physical properties of the samples. In
conclusion, this study revealed that the brick samples produced could be
evaluated and used as insulating materials by adding BCW to building materials
in construction applications.
Primary Language | English |
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Subjects | Civil Engineering |
Journal Section | Research Article |
Authors | |
Publication Date | December 30, 2019 |
Published in Issue | Year 2019 |
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