Title:
Admixtures--What's New on the Market
Author(s):
John M. Scanlon
Publication:
Concrete International
Volume:
14
Issue:
10
Appears on pages(s):
28-31
Keywords:
admixtures; anti-washout admixtures; cementitious materials; compressive strength; concretes; corrosion-inhibiting admixtures; pozzolans; durability; extended-set control admixtures; fly ash; silica fume; freeze-protection admixtures; freeze-thaw durabili
DOI:
Date:
10/1/1992
Abstract:
Use of mineral and chemical admixtures to produce higher quality concrete is growing rapidly. Unless contractors and concrete producers continually update their knowledge of this technology, their chances for financial and technological success are small. Condensed silica fume (CSF) concrete and latex-modified concretes (LMC) were once considered the savior of bridge decks and parking structures. They were effective, but recently the use of fly ash, in combination with a relatively small quantity of CSF and chemical admixtures, has been found to increase quality, reduce permeability and cost, and increase workability. The improvements in concrete in the immediate future will exploit our knowledge of mineral and chemical admixtures. The long-range future will include specialized cements providing these value-added capabilities.