Akademik Veri Yönetim Sistemi
7th INTERNATIONAL CONFERENCE ON HEALTH, ENGINEERING AND APPLIED SCIENCES, Sarajevo, Bosna-Hersek, 28 - 30 Haziran 2024, ss.208-217
In this study, two different types of polypropylene fibers were used in concrete production and the weight loss, compressive strength loss and visual evaluations of concrete at room
temperature (21°C) and high temperature exposure (200°C, 400°C and 600°C) were carried out. For this purpose, polypropylene fibers were included in the concrete at the ratio of 0%, 0.5% and 1% by volume. Control concretes were also produced for comparison purposes. When the results were examined, the weight loss results of type A polypropylene fiber concretes and control concretes were obtained similar for all temperature levels. In concrete with type B polypropylene fibers, the highest weight losses occurred at 600°C (for PPB0.5, this value was 10.42%, while for PPB1, this value was 11.1%). In parallel with the weight loss results, the compressive strength losses of control concretes and type A polypropylene fiber concretes were obtained similar at 200°C and 600°C. The only exception to this situation was observed in the 400°C results. When 0.5% ratio was used in type B polypropylene fiber concrete, the highest compressive strength loss among all groups was observed with 71.32% at 600°C. The visual evaluation results and the weight and compressive strength loss results obtained after the high temperature experiment overlapped with each other. High temperature test results have shown that type A polypropylene fibers, especially with a ratio of 0.5%, can be used more preferably in concrete production than type B.