Özet:

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.

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