The mechanical and durability performance of talc ore additive calcium aluminate cement based mortars reinforced with hybrid fibers

Today, due to global warming and the resulting climate change, observed natural disasters such as drought, more environmentally friendly solutions are sought to avoid practices that harm the environment. In this thesis study, talc ore powder was substituted in certain proportions instead of calcium aluminate cement, which has a fast setting and is resistant to high temperatures. Initially, talc ore powder was used as a binder instead of cement in the proportions of 0%, 5%, 10%, 15% and 20%. After 7 and 28 days of compressive and flexural strength tests, the best results were obtained by adding 0%, 0.3%, 0.6% and 0.9% microfiber fiber to the series containing 0%, 5% and 10% talc, respectively, and freezing-thawing, ultrasound transmission rate, high temperature resistance and compressive and flexural strength tests were applied. For mechanical tests, 7, 28 and 90 days of water cure were applied. For durability tests, the samples were removed from water after 28 days. After the tests, the changes in the compressive and flexural strengths of the samples and the changes in ultrasound transmission rates were examined. Although the strengths generally decreased with the talc ore addition, an increase was observed in the strengths after the freeze-thaw test. An increase was observed in the flexural strengths in the samples with fiber addition.