Concrete employed in oil exploration and production platforms for use in shallow offshore zones of the Arctic Ocean is required to be lightweight, yet high strength, and moreover possess adequate resistance to freezing and thawing. Generally speaking, lightweight concrete, using artificial lightweight aggregate, has lower freeze-thaw resistance and this presents a serious problem. The study reported here was carried out on the freeze-thaw durability, constructibility and other properties of high-strength lightweight concrete. This paper especially points out the governing factors influenzing freeze-thaw durability of this type of concrete and describes a method of manufacturing concrete possessing superior durability.

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