Time-dependent load-induced deformation of Ca(OH)2

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DOIResolve DOI: http://doi.org/10.1680/adcr.
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Journal titleAdvances in Cement Research
IssueOctober 4
Pages135139; # of pages: 5
AbstractShort-term time-dependent strains were monitored on calcium hydroxide compacts having a porosity of 19·7%.The creep experiments were conducted in a controlled environment chamber maintained dry (0% RH) at 22 ± 2°C with nitrogen purging. Prior to loading, the compact specimens were vacuum dried at 105°e for 3 h (equivalent to D-drying). The applied stress for the creep test corref>ponds to 5% of the compaction pressure (386 MPa). The Ca(OHh compact specimens were in the form of T-shaped columns with a minimum thickness value (for the web and flanges) less than 1·2 mm. The AC impedance spectra of loaded and unloaded Ca(OH)2 compact specimens were also monitored in real time. This was achieved by the coupling of the impedance analyser to the creep experiment. An assessment of the relevance of the high frequency arc depression angle obtained from the impedance analysis to an understanding of the load-induced deformation behaviour of the Ca(OH)2 compacts was made.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number45172
NPARC number20386104
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Record identifierae52c37f-3d95-470a-9991-f3e28032ee40
Record created2012-07-25
Record modified2016-05-09
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