accelerating admixture

accelerating admixture

An admixture that speeds the setting and/or the early strength development of hydraulic concrete.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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In this study, three kinds of admixtures were used to manufacture the high-performance cement mortar; they were the UEA expansion admixture, the high-performance polycarboxylate water reducer, and the accelerating admixture. The UEA expansion admixture is a yellow powder with a water content of 0.96%, a total alkali of 0.2%, a chlorine ion content of 0.9%, a specific surface area of 327 [m.sup.2]/kg, and a MgO content of 2.74%.
The factors of the cement mortar are the water-binder ratio, the content of mineral powder, the sand-binder, the UEA expansion admixture, the polycarboxylate superplasticizer, and the accelerating admixture, represented by A, B, C, D, E, and F, respectively.
And last March 24, as many Filipinos observed Holy Week, the riding public saw how Promptis, a concrete accelerating admixture, allowed this to happen.
This was effected through Department Order (D.O.) 61 Series of 2016 or the Standard Specification on the Use of Promptis as Concrete Accelerating Admixture to One-Day Portland Cement Concrete Pavement.
"We used an air-entraining admixture to get 6 percent plastic air contents, and added 3 to 6 gallons of accelerating admixture at the jobsite.
Cleveland-based Master Builders helped the contractor develop a self-consolidating concrete mix design (SCC), including a nonchloride accelerating admixture.
Accelerating admixtures are products added to the mixture to accelerate the setting time and the rate of strength development at early stages.
The report recommends investigating the use of accelerating admixtures prior to deployment to ensure appropriate performance.
Egan, "Effects of accelerating admixtures on cement hydration, admixture for concrete," in Improvement of Properties, pp.

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