Predictions of Working Life of Lightweight Polyester Mortars

Abstract

This paper deals with the effects of ambient temperature, catalyst and accelerator contents on the working life of lightweight polyester mortars. At 10, 20 and 30°C, the lightweight polyester mortars using four lightweight aggregates are prepared with various catalyst and accelerator contents, and tested for working life. As a result, the working life can be controlled by varying the catalyst and accelerator contents at the respective ambient temperatures. Empirical formulas for predicting their working life are successfully proposed.