Results of tests of physical and mechanical properties of gypsum composites with organic fillers, in the form of cut straw are presented at the paper. The conducted tests aimed at determining the influence of gypsum mixtures composition and the manner of filler’s preparation on the quality of composites. Strength and thermal properties, natural radioactivity and susceptibility to biological corrosion have been examined. The results were interesting. Moreover using straw as a component of gypsum mixtures is particularly friendly for natural environment.

Gypsum composites have been gaining increasing interest within last decades. Nowadays, the environment-supporting options are regaining more advocates. Thus, organic fillers are back in game. The physical and mechanical properties of gypsum composites with sawdust were tested and are described in the paper. The influence of gypsum mixture composition, the water/gypsum ratio and appropriate mineralization on the composite properties were examined. Present study focuses on the durability, thermal properties, natural radioactivity and susceptibility to biological corrosion of the tested materials.

W niniejszej pracy przedstawiono wyniki badań niepełnych oraz pełnych gipsobetonów z wypełniaczem stanowiącym mieszankę trocinowo-wiórową. Głównym celem przeprowadzonych badań było ustalenie wpływu składu mieszanek kompozytów oraz sposobu przygotowania wypełniaczy na jakość kompozytów, w szczególności na ich cechy wytrzymałościowe. Wykazano, że zastosowanie mieszanki trocin i wiórów może stanowić alternatywne rozwiązanie do znanego z literatury zastosowania trocin jako wypełniacza kompozytów gipsobetonowych. Właściwości fizyczne i mechaniczne kompozytów z tymi wypełniaczami organicznymi spełniają wymagania normy branżowej.

Gypsum composites have been gaining increasing interest within last decades. Nowadays, the environment-supporting options are regaining more advocates. Among other solutions, organic fillers are of interest. The physical and mechanical properties of gypsum composites with shavings were tested and are described in the paper. The influence of gypsum mixture composition, the water/gypsum ratio and appropriate mineralization on the composite properties were examined. Present study focuses on the durability, thermal properties, natural radioactivity and susceptibility to biological corrosion of gypsum composites with shavings.