Pulling and spreading the mixture of cement, sand and gravel to fill the floor area of a building under construction in the outskirts of Bangkok, Thailand

construction construction workers cement cement mixing infrastructure shovel building engineering project structure renovation masonry housing builders rebuilding repair redevelopment reconstruct expansions remodeling renovations repairs steel round bars manual laborer migrant worker laborers daily wage workers workers boots mortar gravel galvanized steel pavement pvc pipe mason bangkok thailand asia southeast asia scaffoldings iron bars iron columns barefoot mixer spreading flooring braces reinforcement