About the possibilities of moisture content measurement of fibrous materials using deep and surface electric methods

Abstract

While gravimetric method is commonly accepted for moisture content measurement of building materials, it is not possible to use it for in situ measurements. There are the widely used in situ methods for moisture measurements of solid materials, like: bricks, concrete, plasters, mortars. Unfortunately, the quick method for fibrous insulation materials has not been yet approved. The article presents the results of experimental measurements of the moisture content of fibrous insulations by using the resistance method. Deep and surface measurements were done on different mineral and natural materials under different moisture contents. The results show the partial possibility of using the electric method to measure the moisture content of natural materials (like hemp fibers, cellulose and wood wool).