eesti teaduste
akadeemia kirjastus
SINCE 1984
Oil Shale cover
Oil Shale
ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)
Impact Factor (2021): 1.442
PDF | doi: 10.3176/oil.2009.4.07


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.

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