microsilica concrete

microsilica concrete: бетон на цементе с добавками кремнезёмной пыли (для создания плотности и водонепроницаемости)

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The Reef Ball Foundation — Infobox Non profit Non profit name = Reef Ball Foundation, Inc. Non profit Non profit type = 501(c)(3) founded date = 1993 founder = Todd Barber location = Athens, Georgia, USA origins = key people = area served = focus = Ocean ecosystem repair… … Wikipedia
Silica fume — Not to be confused with fumed silica. Silica fume, 380m²/g Silica fume, also known as microsilica, is a fine grain, thin, and very high surface area silica. It is sometimes confused with fumed silica (also known as pyrogenic silica) and colloidal … Wikipedia
Rice hulls — (or rice husks) are the hard protecting coverings of grains of rice. In addition to protecting rice during the growing season, rice hulls can be put to use as building material, fertilizer, insulation material, or fuel.ProductionRice hulls are… … Wikipedia

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