Frost resistance of high performance concrete - some theoretical considerations

Title: Frost resistance of high performance concrete - some theoretical considerations
Author(s): G. Fagerlund
Paper category : conference
Book title: International RILEM Workshop on Durability of High Performance Concrete
Editor(s): H. Sommer
Print-ISBN: 2-912143-03-9
e-ISBN: 2351580125
Publisher: RILEM Publications SARL
Publication year: 1994
Pages: 112 - 140
Total Pages: 29
Nb references: 1
Language: English

Abstract: According to some experimental studies, concretes with very low waterlcement ratio, so- called high performance concretes, seem to be frost resistant even when they are non-air-entrained. Some examples are shown in Fig 1 which is based on a work performed by Lindmark (1991). Twelve different concretes were tested in 3% NaCl solution according to the Swedish standard method of testing the salt scaling resistance. In this method, the specimen is pre-dried at room climate and is then re-saturated by sucking pure water for 1 week before the freezelthaw test starts. The specimen is heat insulated on all sides during the test except the top surface which is covered by a thin layer of the salt solution. This is protected from evaporation by a plastic foil. Each freezelthaw cycle consists of 16 hours of freezing to about -18OC, and 8 hours of thawing to room temperature. The scaled material is weighed at 7 days interval. The salt solution is renewed in connection with this.

Online publication: 1996-02-02
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580125.015