The investigation is based on one specific basic sprayed concrete composition. All specimens werecast, not sprayed, hence accelerator was not used. The following measurements were performed: Slump (visually) and air content: Performed at the casting site Fibre content in fresh concrete: Fresh concrete was transported to the laboratory where themeasurements were performed Compressive strength on two 100 x 100 mm cubes after 7 days and two cubes after 28 days Energy absorption capacity of 8 round panels (Ø600 mm, thickness=100 mm) and 8 squarepanels (sides=600 mm, thickness=100 mm) were tested according to the procedures inrespectively NB 7 (round) and EN 14488-5 (square), with the exception for the square panelsthat the support-frame was made of the similar wooden material as for the round panels, andnot steel as described in EN 14488-5: