SCM - Fly Ash, Slag, Silica Fume, and Natural Pozzolans Fly...

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Fly Ash, Slag, Silica Fume, and Natural Pozzolans
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Fly Ash, Slag, Silica Fume, and Natural Fly Ash, Slag, Silica Fume, and Natural Pozzolans Also known as — Supplementary Cementing Materials (SCMs) — a material that, when used in conjunction with portland cement, contributes to the properties of the hardened concrete through hydraulic or pozzolanic activity, or both.
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Fly Ash, Slag, Silica Fume, and Natural Supplementary Cementitious Materials (SCMs) From left to right: Fly ash (Class C) Metakaolin (calcined clay) Silica fume Fly ash (Class F) Slag Calcined shale
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Fly Ash, Slag, Silica Fume, and Natural Supplementary Cementing Materials — Pozzolans Pozzolan — a siliceous or alumino- siliceous material that, in a finely divided form and in the presence of moisture, chemically reacts with calcium hydroxide released by the hydration of portland cement to form compounds possessing cementing properties. Natural Pozzolans — a natural material which may also be calcined and/or processed ( eg. metakaolin, rice husk, volcanic ash, calcined shale)
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Fly Ash, Slag, Silica Fume, and Natural Specification and Class of Natural Pozzolans Class N Raw or calcined natural pozzolans including: Diatomaceous earths Opaline cherts and shales Tuffs and volcanic ashes or pumicites Calcined clays, including metakaolin, and shales ASTM C 618 (AASHTO M 295) ASTM C 618 (AASHTO M 295) Metakaoli n
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Fly Ash, Slag, Silica Fume, and Natural SEM Micrograph of Calcined Clay Particles
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Fly Ash, Slag, Silica Fume, and Natural SEM Micrograph of Calcined Shale Particles
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Fly Ash, Slag, Silica Fume, and Natural Specifications and Classes of Fly Ash Class F— Fly ash with
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SCM - Fly Ash, Slag, Silica Fume, and Natural Pozzolans Fly...

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