chapter  2
20 Pages

On the service life of concrete exposed to frost action

Abstract A theory is presented fo r the estimation of the service life of concrete exposed t o frost action. I t is based on a separation of the frost resistance proble m in two parts:

Part 1 , that is only a function o f the material itself, and which is expressed i n terms of a critical water content, or a degree of saturation, which is a "fracture value" being almost independent o f the external conditions (except for the lowest temperature an d the internal salt concentration.) Th e critical degree of saturation is a consequence of the existence of a critical distance of water transfer during freezing. Som e experimental data for the critical distance are given.