SYMPOSIA PAPER Published: 01 January 1980
STP36080S

Freeze-Thaw Durability of Porous Building Materials

Source

Water held in the pores of a solid becomes unstable when cooled to temperatures below 0°C. If the conditions permit, the water leaves the pores and ice accumulates outside the system. In case of high cooling rate, high degree of saturation, and long diffusion path, the water cannot reach the external surface and solidifies in a glassy, amorphous state. Mechanical damage occurs only in the latter case. This mechanism is not indigenous to any single type of solid, thus it is applicable to cement paste, stone, and brick, and could be used for increasing the durability of porous materials and for improving test procedures.

Author Information

Litvan, GG
National Research Council of Canada, Ottawa, Ont., Canada
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Details
Developed by Committee: E06
Pages: 455–463
DOI: 10.1520/STP36080S
ISBN-EB: 978-0-8031-4768-3
ISBN-13: 978-0-8031-0325-2