Examination of the relation between tensile/flexural strength and compressive strength of autoclaved aerated concrete according to prEN 12602

According to the European Standard Draft prEN 12602 [1] the manufacturer of prefabricated reinforced components of autoclaved aerated concrete shall declare the flexural strength from tests. In the absence of test results an estimate of the tensile strength or flexural strength, respectively, may be obtained by using equations. These equations were regarded to be based on insufficient investigations and were verified in the context of a research work performed at the Otto-Graf-Institute of Materialprufungsanstalt Universitat Stuttgart. This work presents a statistical evaluation of the obtained results and provides a proposal for standardisation.