The freezing of water in concrete may create highly disruptive internal forces, depending upon the degree of saturation of the voids and the extent of the resulting dilations. Heretofore, it has not been possible to measure the internal pressures accompanying freezing; and it is this aspect of the automatic freeze-thaw testing of concrete with which the present study was concerned. By the use of thermocouples, imbedded in concrete and referenced to an ice-water bath, it was possible to plot, on an automatic multivolt potentiometer recorder, an isothermal phase change for the absorbed water, and to demonstrate a depression of the freezing point of the water with increasing confining pressures. It was also possible, at least in a general way, to relate the progress of damage in the concrete to increased absorption and freezing point depression.
Digital Object Identifier
Havens, James H. and Burchett, Knox R., "Differential Thermal Analysis of the Freeze-Thaw Mechanisms in Concrete" (1958). Kentucky Transportation Center Research Report. 1243.