Some Mechanical Properties of Ferro-Cement Mortar Modified by Polymer

Abstract

The main aim of this work is to study the effect of adding Styrene Butadine Rubber (SBR) polymer on the mechanical properties of ferro-cement mortar. This kind of polymer was added with different weight ratios of polymer to cement (P/C), and these percentages were (3%, 7%, 10%). Reference mix was made for comparative reason. The following tests were made to investigate ferro-cement's mortars mechanical properties as followed: compressive strength, splitting tensile strength and flexural strength. Results demonstrated that in general, there is an improvement in mechanical properties due to adding SBR polymer and, all cement mortar specimens exhibited continuous increase in these properties with an increase of age. In compressive strength, the increases due to modifying by polymer in 56day age were (19.5% to 44.3%). In splitting tensile strength for the same age , the increases were (19.2% to 42.7%), whereas for flexural strength the increases were ( 5.9% to 19%).