Physical Properties of Polymer/Cement Composite Anticorrosion Materials

The physical properties of two kinds of composite anticorrosion materials formed by mixing and solidifying with Portland cement and acrylic emulsion were studied including adhesive force, impact resistance, flexibility and linear coefficient of expansion. The different properties were compared and the effects of ratio of polymer to cement (R) on physiacl properties were investigated. The results indicate that the adhesion, impact resistance and flexibility of the composite materials formed by adding acrylic emulsion into Portland cement to co-solidify had been obviously improved compared with that of the bare Portland cement. Especially, the effect of acrylic emulsion on properties of composite materials exhibited more outstanding when the R value was more than 0.3. Under the same R value, the composite material formed with NE-1 Portland cement exhibited better performance than that prepared with P·O 52.5 Portland cement. When the R value was more than 0.5, properties of the composite materials were not significantly improved with the increase of acrylic emulsion. So, the optimal ratios range of polymer to cement was 0.3-0.5.