Title: Danish Investigations on Silica Fume Concretes at Elevated Temperatures

Author(s): K. D. Hertz

Publication: Materials Journal

Volume: 89

Issue: 4

Appears on pages(s): 345-347

Keywords: explosions; fire tests; high temperature; plasticizers; silica fume; slenderness ratio; spglling.

DOI: 10.14359/9750

Date: 7/1/1992

Abstract:
Describes fire tests in which the increased risk of explosive spalling of concrete densified by silica fume was first discovered. Further results are discussed from tests to define appropriate limits of silica fume content and to develop a new concrete for slender column units. Observations are made about circumstances under which superplasticizing additives in concrete gave rise to the development of toxic gases.