Structural Repair of Fire Damaged Concrete

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Title: Structural Repair of Fire Damaged Concrete

Author(s): Gerard De Lange

Publication: Concrete International

Volume: 2

Issue: 9

Appears on pages(s): 27-29

Keywords: abrasive blasting; adhesives; coatings; cracking (fracturing); damage; epoxy resins; fire tests; maintenance; repairs; shotcrete; spalling.

Date: 9/1/1980

Abstract:
An intense fire in the x-ray archives of the St. Elizabeth Hospital in Alkmaar, Holland, caused severe damage to the concrete structure. To determine the stability of the structure, several cores were taken from the beams and ceiling and the columns were tested ultrasonically. The consulting engineers con-cluded there was no reason to tear down the structure as long as the repairs were made very carefully by specialists in the field. Three repair techniques were used: structural repair of the cracks using epoxy injection, shotcrete repair of damaged concrete surfaces, and stiffening of structural members.