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269

Fatigue of sintered steels (Fe - 1.5 Mo - 3 Mn - 0.7 C)



Title: Fatigue of sintered steels (Fe - 1.5 Mo - 3 Mn - 0.7 C)
Author(s): H. Khorsand, S. M. Habibi, K. Janghorban, H. Yoozbashizade, S. M. S. Reihani
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 37
Issue: 269
Issue date: 2004-06-01
Publication year: 2004
Pages: 335 - 341
Total Pages: 7
Nb references: 22
Language: English


Abstract: Within the framework of an experimental programme developed by the Laboratoire Central des Ponts et Chaussées (LCPC) and Électricité de France (EDF), in the aim of increasing knowledge on Alkali-Silica Reaction (ASR) and understanding the effect of water on ASR development in structures, two techniques have been designed to measure water content vs.
time in large-scale concrete specimens.
Global weighing variations are monitored on six 900 kg beams; and the gammadensitometry measurement allows evaluating water content profiles in the beams.
These two complementary measurements serve to validate water content models and correlate the moisture gradient with measured deformations.
The measurement principle, execution and qualification are first described.
The accuracy of the weighing device is thus evaluated at 10 g, and the uncertainty of the gammadensitometry method is close to 0.
4% of relative mass.
The paper then presents the results of one-year monitoring conducted on one of these beams and proves the consistency of these methods.
At last, it is shown that the square root of time kinetics allows a good representation of the global mass variations of the beams, and that the drying depth reaches between 80 and 100 mm after one year exposure.


Online publication: 2004-04-27
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13967


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