plastic shrinkage cracks

hairline cracking, hair cracking, plastic shrink-age cracks

Very fine cracks, in a random pattern, which usually do not completely penetrate a paint film, an exposed layer of concrete, etc.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Weiss, "Influence of shrinkage-reducing admixtures on development of plastic shrinkage cracks," ACI Materials Journal, vol.