Begaviour of concrete at cryogenic temperatures

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Title: Begaviour of concrete at cryogenic temperatures

Author(s): Maturana, P.; Plantas, J.; Elices Calafat, M.

Publication: ACHE

Volume: 39

Issue: 167

Appears on pages(s): 153 - 161

Keywords: 0

Date: 1/3/1988

Abstract:
This paper presents experimental results of stable three point bend tests on notched saturated concrete beams in a range of temperatures, from room temperature down to -170ºC. From these tests values of fracture parameters are calculated at different temperatures. The high increase in fracture energy, observed when lowering test temperature is compared with the trends dictated by a previous thermal activation analysis performed by Bazant. The essential conclusion is that a drastic microstructural change takes place between 10ºC and -70ºC.


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