ABSTRACT

Most of the related literature is restricted to limited temperature range and a certain type of polymer.Traditional approaches are usually focused on temperatures above room temperature, which is understandable taking into account that common resins used in polymer concretes present glass transition temperature ranges above this temperature. However, resistance to very low temperatures, depending upon polymer concrete application, could also be a very important and even crucial subject (Ribeiro et al. 2004). (Ohama 1977) studied the resistance of polyester PC to hot water. Cylindrical PC specimens were immersed in boiling water for up to 1 year before being tested in compression and splitting tension. It was concluded that erosion depth in polyester PC increased with the immersion time and the compressive and tensile strengths decreased, with no appearance or weight change. The risk of hydrolysis with water was considered, since unsaturated polyester resin is an ester.