A device for charging concrete in tremie pipe

A device for charging concrete in tremie pipe Bored piles and diaphragm walls are important foundation elements with very wide applications. Bleeding in fresh concrete leaves channels in the concrete and leads to loss of quality. The cause lies in the contractor process with contractor pipe. We will carry out modelling tests to better understand the mechanisms. We will also make an umbrella-like device and test it in a plexiglass tube. The experiments will be carried out on small and large scales. The falling speed of the concrete in the contractor tube is to be measured. The segregation of the concrete should be observed.