Title:
Concrete, Construction, or Salt—Which Causes Scaling?
Author(s):
Dipayan Jana
Publication:
Concrete International
Volume:
26
Issue:
11
Appears on pages(s):
31-38
Keywords:
DOI:
Date:
11/1/2004
Abstract:
Part I of this article provides three case studies that demonstrate the roles of lack of air entrainment, improper air entrainment (coarse air void system), and inadequate air entrainment (low entrained air content) in scaling. Part II will provide three case studies to show scaling due to initiation of finishing prior to the cessation of bleeding, finishing in the presence of excess water at the surface, and prolonged finishing practices. A poor air-void system causes scaling of the concrete surface at saturated conditions during cyclic freezing and thawing. Finishing improprieties, on the other hand, can cause scaling, abrasion, or delamination even in the absence of cyclic freezing and thawing