Microsilica as an Addition

Abstract Microsilica is a very fine powder mostly composed of amorphous silicon dioxide. ‘Microsilica’ is material that has property and quality good enough for use in concrete. Microsilica in concrete was first tested in Norway in the early 1950s. Good strength results were obtained in concrete, and later it was established that sulfate exposure tests begun in those early days documented microsilica concrete to be as durable as concrete made with sulfate-resisting cement.