Othuman Mydin, Md Azree
(2012)
Elastic Modulus of Foamcrete in Compression and Bending at Elevated Temperatures.
Analele Universităţii Eftimie Murgu Reşiţa. Fascicula de Inginerie, 19 (1).
pp. 165-173.
ISSN 1453-7397
Abstract
This paper will presents the experimental results that have been
performed to examine and characterize the mechanical properties of
foamcrete at elevated temperatures. Foamcrete of 650 and 1000 kg/m3
density were cast and tested under compression and bending. The
tests were done at room temperature, 100, 200, 300, 400, 500, and
600°C. The results of this study consistently demonstrated that the loss
in stiffness for cement based material like foamcrete at elevated
temperatures occurs predominantly after about 95°C, regardless of
density. This indicates that the primary mechanism causing stiffness
degradation is microcracking, which occurs as water expands and
evaporates from the porous body. As expected, reducing the density of
LFC reduces its strength and stiffness. However, for LFC of different
densities, the normalised strength-temperature and stiffnesstemperature
relationships are very similar.
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