Microsilica (Silica Fume) Concrete Durability in Severe Environments

by Mark D. Luther, Elkem Materials Inc, United States,

Document Type: Proceeding Paper

Part of: Structural Materials


Microsilica (silica fume) concrete has provided increased durability in a variety of aggressive environments. Technical information is presented for microsilica concretes exposed to fire, abrasion, frost, marine, and various chemical environments including chlorides, sulfates, and acids. Also, the resistance of microsilica concrete to the actions of burglars (jackhammering, coring, torching, etc.) is discussed. Examples of structures that have used microsilica concretes to improve durability in severe environments are presented. The performance of the microsilica concretes used in these structures has, to date, generally confirmed the favorable results predicted by many laboratory investigations.

Subject Headings: Silica | Concrete | Material durability | Fire resistance | Load and resistance factor design | Fires | Erosion | Chloride

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