1947 First mentioned in a U.S. patent.
1950 First concrete experiments in Norway.
1971 The first commercial concrete application.
1987 Product standard since.
Silica Fume (Micro Silica) History
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1947 First mentioned in a U.S. patent.
1950 First concrete experiments in Norway.
1971 The first commercial concrete application.
1987 Product standard since.