This week’s work will also entail the continued forming, pouring concrete, removing forms and back filling for retaining walls and drainage ... installing rebar, pouring concrete and backfilling ...

This week, construction continues on Highway 218 with the placing of a permeable treatment base for drainage, forming, installing rebar and ... back filling for retaining walls and drainage ...

College of Mechanical Engineering, Beijing Information Science and Technology University, Beijing 100192, P. R. China ...