Mineral Admixtures - Civil and Environmental Engineering
Mineral Admixtures - Civil and Environmental Engineering
Mineral Admixtures - Civil and Environmental Engineering
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<strong>Mineral</strong> <strong>Admixtures</strong><br />
Classification<br />
• Fly ashes can be divided into two categories which<br />
differ from each other mainly in calcium content.<br />
• The ash containing less than 10 percent CaO, is<br />
generally a product of the combustion of<br />
anthracite <strong>and</strong> bituminous coals.<br />
• The ash typically containing 15 to 35 percent<br />
analytical CaO, is generally a product of<br />
combustion of lignite <strong>and</strong> subbituminous coals.<br />
P.K. Mehta <strong>and</strong> P.J.M. Monteiro, Concrete: Microstructure, Properties, <strong>and</strong> Materials
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