A coupled A.C. impedance-creep and shrinkage investigation of hardened cement paste

Title: A coupled A.C. impedance-creep and shrinkage investigation of hardened cement paste
Author(s): B. T. Tamtsia, J. J. Beaudoin, J. Marchand
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 36
Issue: 257
Issue date: 2003-04-01
Publication year: 2003
Pages: 147 - 155
Total Pages: 9
Nb references: 49
Language: English

Abstract: The effect of three pre-drying treatments (prior to resaturation with synthetic pore fluid) on time dependent deformation was investigated.
The pre-drying treaments comprised methanol and isopropanol exchange (followed by vacuum heating at 37°C) and vacuum drying at 37°C alone.
Real-time changes in microstructure due to sustained load were followed through the coupling of an A.
C.
impedance frequency analyzer with a miniature loading system.
Cement paste specimens were in the form of T-shaped columns with minimum thickness value around 1 mm.
The impedance analysis included an assessment of the relevance of the high frequency arc depression angle to creep and shrinkage behavior of cement paste.

Online publication: 2003-02-25
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14001