Title:
Unique Applications of an Innovative Workability-Retaining Admixture
Author(s):
Charles K. Nmai and Joseph A. Daczko
Publication:
Symposium Paper
Volume:
288
Issue:
Appears on pages(s):
1-13
Keywords:
acrylate polymer;admixture; consistent concrete; retempering; slump retention; very high-early strength; workability; workability retaining.
DOI:
10.14359/51684236
Date:
9/14/2012
Abstract:
In 2009, an innovative admixture technology that provides flexible amounts of workability retention when used in combination with water-reducing admixtures, in partic¬ular high-range water reducers, was introduced in North America. This admixture provides slump and workability retention without impacting initial workability and with no adverse effect on time of setting or early-age compressive strength. In this paper, the use of this innovative workability-retaining admixture in several unique applications are presented and discussed. The data presented in this paper show that the workability-retaining admix¬ture can be used to provide varying degrees of slump retention as desired and, more impor¬tantly, to improve batch-to-batch consistency with respect to plastic and hardened concrete properties.