Proportioning Design and Mechanical Properties Research of Polypropylene Fiber and Polymer Emulsion Reinforced Cement Mortar

Abstract

The development of new binders, alternative to traditional cements mortars obtained by the reinforcement of some fibers and polymer emulsion, is an ongoing study and research topic of the scientific community. The present research investigates mechanical properties of cement mortar composites containing different hybrid combinations of polypropylene (PP) fibers and polymer emulsion. Effects of different PP fiber contents as partial replacement of mortar on the mechanical properties were evaluated, and effects of different polymer emulsion contents as partial replacement of mortar on the mechanical properties were also evaluated. In this article, a group of orthogonal test was arranged and proportioning design of PP fiber and polymer emulsion reinforced cement mortar was conducted. The experiment results showed that mixing 2.0% PP fiber and 9% polymer emulsion could enhance cement mortar’s mechanical properties to a certain degree. A mechanism of PP fiber and polymer emulsion enhancements was analyzed.