Title:
Homogeneity of Air Entraining Concrete
Author(s):
Henry L. Kennedy
Publication:
Journal Proceedings
Volume:
42
Issue:
6
Appears on pages(s):
641-644
Keywords:
none
DOI:
10.14359/8729
Date:
6/1/1946
Abstract:
Reports studies of the homogeneit o f air-entraining concrete by means of testing for resistnance to abrasion. An air-entraining agent was used with no added accelerators, dispersing agents or gas forming materiaIs. Since air entrainment has a tendency to eliminate bleeding of concrete it is only reasonable to believe that such concretes are more homogeneous the top surface (of a slab) would have the same strength and density characteristics as the bottom surface. Plotted data show that there is pro-gressive increase in abrasion loss in specimens as air content increases beyond 6 percent.