Akademik Veri Yönetim Sistemi
7th International Conference on Computational Mathematics and Engineering Sciences, Elazığ, Türkiye, 20 - 21 Mayıs 2023, ss.1-2
The use of traditional portland cement-based concrete is quite common in today's construction
industry. Geopolymer concrete has been proposed as an alternative to Portland cement
concrete due to the energy consumption caused by cement consumption in the world and
environmental pollution as a result of high greenhouse gas effect. In this study, metakaolin
and ground blast furnace slag were preferred as binder materials. In addition, it is aimed to
determine the ratio of natural zeolite to be replaced at the optimum rate without reducing the
flexural and compressive strengths of the concrete by using natural zeolite in different
proportions instead of ground blast furnace slag used as a binder in geopolymer concrete. In
this direction, in order to examine the effect of natural zeolite on the mechanical properties of
geopolymer concrete, four mixtures were designed by replacing the total amount of binder by
10%, 15% and 20% and with a reference mixture that does not contain natural zeolite. The
mixtures were subjected to thermal curing at 80 degrees for 8 hours. Metakaolin, aggregate
and alkali activator contents as binders in the mixtures were also kept constant. According to
the test results, it was shown that the mixture containing 10% natural zeolite reached 71.31
MPa by increasing the compressive strength by 7.52% compared to the reference mixture, and
reaching 8.38 MPa by increasing the flexural strength by 12.41%. In addition, it has been
observed that the compressive strength of the mixtures containing natural zeolite is decreased
compared to the reference samples when exposed to high temperature. As a result, the use of
10% of natural zeolite had a positive effect on the strength development and mechanical
properties of geopolymer concrete without losing its mechanical properties such as high
flexural and compressive strengths.