Mixing cement, sand and gravel into a mortar to pave the flooring of a house under construction for a real estate area in Southeast Asia

construction construction workers cement cement mixing infrastructure shovel building engineering project structure renovation masonry housing builders rebuilding repair redevelopment reconstruct expansions remodeling renovations repairs manual laborer laborers daily wage workers workers boots mortar gravel pavement bangkok thailand asia southeast asia tires pouring scaffoldings iron bars barefoot scaffolds dirt soil sand mason galvanized irons round bars edifice rebar flooring