Investigation of the Effects of Different Percentages of Synthetic Fibers on Triaxial Compressive Strength
Mirmohammadreza Hassani Oskouei, Abdolreza Torkyoun, Gholamreza Baghaban Golpasand
The current study aimed at investigation of the effects of the application of synthetic polymer fibers in the concrete with natural sand. In order to evaluate the construct behavior of fiber-reinforced concrete with the natural and recycled aggregates, some of its properties such as the triaxial compressive strength were theoretically studied. In addition, different types of fibers and their chemical and physical properties, as well as different types of fiber-reinforced concrete with and without the recycled aggregates were dealt with for better recognition of fiber-reinforced concretes. In the following, through performing the related tests for the determination of the triaxial compressive strength on the concrete with polymer fibers containing the natural aggregates and combination of recycled and natural aggregates as coarse aggregates, and the concrete without fibers containing the natural aggregates and combination of recycled and natural aggregates as coarse aggregates, the use of these aggregates has been studied. The results showed that the use of synthetic fibers in concrete would lead to the increase in tensile strength, and to some extent, in triaxial compressive strength. Also, the decrease in tensile strength of the concrete with recycled aggregates can be somehow compensated by adding the fibers, and besides, the addition of the fibers to the recycled concrete would lead to the improvement of the mechanical properties of the concrete such as the compressive strength, tensile strength, and also, the triaxial strength.