Title:
Ordinary Portland Cement Mixes With Selected Admixtures Subjected to Sulfuric Acid Attack
Author(s):
N. I. Fattuhi and B. P. Hughes
Publication:
Materials Journal
Volume:
85
Issue:
6
Appears on pages(s):
512-518
Keywords:
acids; admixtures; chemical attack; concretes; fly ash; latex (plastic); polyvinyl alcohol; portland cements; sulfuric acid; water-reducing agents; Materials Research
DOI:
10.14359/2269
Date:
11/1/1988
Abstract:
102-mm cubes were cast from cement paste, mortar, and concrete mixes containing ordinary portland cement and suspended in a channel containing either a 1- or 3-percent nominal solution of continuously flowing sulfuric acid. The parameter investigated included cement content, water-cement ratio (w/c), additions of pulverized fuel ash, polyvinyl alcohol, a latex (styrene butadiene), and a high range water-reducing admixture. The changes in weight with time for each cube were determined continuously up to a maximum exposure period of 93 days. The results indicated that the rate of deterioration of the cubes increased with an increase in cement content, w/c, or acid concentration. The addition of polyvinyl alcohol appeared to enhance the resistance and integrity of the cubes.