workers man using a vibration machine for eliminate bubbles in concrete. after pouring ready-mixed concrete

activity after architecture background bubbles build builder cement concrete concreting construction contractor design eliminate equipment floor flooring for foundation gravel heavy industrial industry infrastructure iron jobs liquid machine make man mason masonry material metal mixed mixer mixing mobile new pattern plasterer plastering pour pouring process project ready readymixed rebar reinforced reinforcement road safety sand screed site steel structure texture tool using vibration wet work worker workers