Conditon of structures and properties of concrete of an existing oil shale chemical plant

Abstract

A case study for investigating the condition of concrete structures and properties of concrete of an existing oil-shale chemical plant is presented. The condition of concrete structures in the plant (constructed in 1951) was assessed visually on a six-point scale. It was found on visual inspection that concrete structures with cracked or spalled concrete cover need extensive repairs. Compressive strength of cores, carbonation depth, cover, water absorption as well as sulphate, chloride and nitrate content in concrete were determined. According to the results suggestions were proposed to repair deteriorated concrete structures in the plant. © 2009 Estonian Academy Publishers.