Tag Archive for Tag: Set-Accelerating Admixture

Tag: Set-Accelerating Admixture Chemical and Mineral Admixtures

Chemical admixtures used in concrete generally serve as water reducers, accelerators, set retarders, or a combination. ASTM C494, ‘‘Standard Specification for Chemical Admixtures for Concrete,’’ contains the following classification: High-range admixtures reduce the amount of water needed to produce a concrete of a specific consistency by 12% or more. Water-Reducing Admixtures These decrease water requirements for a concrete mix by chemically reacting

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