physico-chemical deterioration

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ухудшение физико-химических свойств — — [http://slovarionline.ru/anglo russkiy slovar neftegazovoy promyishlennosti/] Тематики нефтегазовая промышленность EN physico chemical deterioration … Справочник технического переводчика
Concrete degradation — may have various causes. Concrete can be damaged by fire, aggregate expansion, sea water effects, bacterial corrosion, calcium leaching, physical damage and chemical damage (from carbonation, chlorides, sulfates and distilled water). This process … Wikipedia
Alkali soils — Alkali, or alkaline, soils are clay soils with a relatively high exchangeable sodium percentage, a relative high pH (> 9), a poor soil structure and a low infiltration capacity. Often they have a hard calcareous layer at 0.5 to 1 m. depth (in… … Wikipedia

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