Properties of Self-Compacting Mortars with Different Contents of Synthetic Macro Fiber

Abstract

This study is devoted to investigating engineering properties of Self-Compacting Mortar (SCMs) produced with synthetic macro fiber. For this purpose, five different mix designs were prepared with a constant w/c ratio of 0.55 to sustain self-compatibility. Fiber content in these mixtures were changed from 0% to 5%. Engineering properties were investigated in terms of workability, mechanical properties and abrasion resistance. Compressive strength and flexural strength tests were conducted on the specimens exposed to three different water curing age 7 days, 28 days and 56 days respectively. In this study, also optimum synthetic fiber amount was determined to sustain self-compatibility of mortar. It was revealed that 2 and 3 kg/m3 synthetic macro fiber ratio are the key proportions to improve workability and flexural strength properties of hardened mortar. Moreover, adding fiber to mortar decreased abrasion resistance at 28 days age. In reverse, fiber addition increased abrasion resistance at 56 days age.