ცემენტისფუძიანი კომპოზიტების ტენგამტარობის თეორია

Abstract

It is important to establish cement-based composites moisture conductivity theory and to determine its parameters at different influences and loads to create comprehensive and improved construction calculation methods. A number of works are dedicated to the issues concerning building materials moisture transfer. It is worth mentioning that the whole raw of regularities need further clarification and study. It is necessary to develop moisture conductivity theory, which mathematical apparatus will be the base for determining the real picture of cement-based composites moisture transfer. The issues concerning the processes of cement-based composites moisture transfer are investigated in the article. It is determined that in cements easy loads within the limits of environmental relative humidity have no impact on the processes of moisture transfer. Composites moisture conductivity theory is created. A system of differential equations that precisely depicts the real picture of materials moisture conductivity is developed. Formulas determine temperature’s (T), moisture’s (W) and hydrostatic pressure’s (P) gradients impact on composites moisture conductivity in every available aspect. Formulas create closed system – three equations for three functions T, W and P. More compact formula of those equations is developed. In formulas coefficient values are given.