Analysis of corn cob ash additives exposed to high temperature

The fact that cement is a building material with a wide area of use in the construction industry for many years has led researchers to search for new ways to reduce the consumption of natural resources rapidly. In literature studies, corn cobs, which are described as agricultural waste, have been reported to contain high silica. In this study, it was predicted that the corn cob could be used by burning it with appropriate methods. At the same time, polypropylene fibers, which are known to be effective against high temperatures in concrete works, have also been used in this study as they will also be effective in mortar work. The idea that both the excessive consumption of natural resources resulting from cement production can be reduced, and the idea that agricultural waste corn cobs can be burned in the fields to reduce the pollution of the atmosphere has been an important source of motivation. Mortar samples; 350, 400, 450, 500 dosages, 0.40, 0.45, 0.50, 0.60 water/ cement ratio. %0, %5, %10, %20 corncob ash (of cement volume) and prepared using %0, %0.03, %0.06, %0.10 polypropylene fiber (by volume). In all series, a constant amount of superplasticizer additive was used for the appropriate consistency. To determine the mechanical and physical properties of mortar samples; Compressive strength, tensile strength, ultrasound transmission rate, water absorption and fire tests were carried out. Optimum parameters were determined with the Taguchi optimization method using the data obtained as a result of the experiments. The effect percentages of the experimental parameters were determined by the Analysis of Variance (ANOVA). As a result of this study, it was seen that the results of the experiment and the results of the statistical analysis were in a certain agreement. In addition, it has been understood that the use of corncob ash up to certain levels has positive effects on the mortar samples.