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young curly blonde girl in pink dress near concrete walls
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Young Curly Blonde Girl In Pink Dress Near Concrete Walls

- Ground granulated blast furnace slag (GGBFS or GGBS): A by-product of steel production is used to partially replace Portland cement (by up to 80% by mass). It has latent hydraulic properties.
- Silica fume: A by-product of the production of silicon and ferrosilicon alloys. Silica fume is similar to fly ash, but has a particle size 100 times smaller. This results in a higher surface to volume ratio and a much faster pozzolanic reaction. Silica fume is used to increase strength and durability of concrete, but generally requires the use of superplasticizers for workability.
- High reactivity Metakaolin (HRM): Metakaolin produces concrete with strength and durability similar to concrete made with silica fume. While silica fume is usually dark gray or black in color, high-reactivity metakaolin is usually bright white in color, making it the preferred choice for architectural concrete where appearance is important.

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Filename:313804.jpg
Album name:Babes
Rating (1 votes):55555
Keywords:#young #curly #blonde #girl #pink #dress #near #concrete #walls
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Date added:Sep 06, 2010
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