Applying Conduct – Metrical Method to Research of Foam Gypsum with Hemp Fibrous Reinforcement Drying Process

Foam gypsum is a perspective material in construction. According to the requirements for the manufacturing process of foam gypsum, the initial moisture content should be very high. The drying of these products is an obligatory requirement to obtain material with sufficient mechanical and heat conductivity properties. This study provides the experimental measurements of electrical properties – resistance and capacitance during the drying process. The results show, that electrical measurements are a useful tool for characterizing moisture content in foam gypsum. The optimal frequency of electric measurements at the kilo- and megahertz range has been determined.