Lastkapacitet hos murar byggda med C3C blocksystem -översvämningslaster

Sammanfattning: Floods are the natural disaster that causes the most deaths and economic damage in the world. Sweden has been relatively spared from casualties in connection with floods, but the material damage is significant. In the future, larger and more frequent floods are expected. It is therefore interesting to study new protection barriers with higher capacity. C3C Engineering AB is a Växjö-based company that manufactures concrete blocks according to the lego principle out of waste concrete. In 2021, C3C has 99 production sites spread around Sweden. In the study, four models of stacking C3Cblock® were analyzed.The aim of the study was to produce calculation materials that can be used for stacking and placing C3Cblock® for flood protections. To calculate the capacity of the models, three horizontal loads were assumed to act on the stacking: static water pressure, hydrodynamic water pressure and floating debris load. In the study, four interviews with experts in the flood area were conducted. The interviews provided an insight into how experts at the relevant authorities view Sweden's preparedness, management, planning against floods and which criteria for protection barriers are considered important.The results from the study show that the C3Cblock® largely manage the water velocities and water heights that the authority for protection and preparedness maps for. The work also shows that the impact of floating debris has a relatively small effect compared to the hydrodynamic and hydrostatic water load. As the calculation set-up has been in ideal conditions, it is important when using the C3Cblock® for flood prevention purposes to have knowledge of terrain conditions such as base material and ground slope.