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Shear behaviour of steel fibre reinforced concrete beams



Title: Shear behaviour of steel fibre reinforced concrete beams
Author(s): A. Meda, F. Minelli, G. A. Plizzari, P. Riva
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 38
Issue: 277
Issue date: 2005-04-01
Publication year: 2005
Pages: 343 - 351
Total Pages: 9
Nb references: 16
Language: English


Abstract: The electrical resistivity method was used for measuring the electrical resistivity of cement paste incorporating with fly ash.
The study found that the bulk electrical resistivity (rho)(t) was a function of the solution electrical resistivity (rho)_0(t) and porosity (phi).
A two-component model was proposed, in which (rho)(t) was dominated by (rho)0(t) at the early period of hydration and dominated by (phi) at a later period.
The porosity formation curve was derived from the 2-point method.
A logarithmic equation (rho)(t) =K*ln(t/t0) was proposed to express the electrical resistivity development with time after hardening, where K represents the rate of hydration, and the pastes with fly ash had a lower K.
The setting times and compressive strengths were tested and the results were compared with the electrical properties.


Online publication: 2005-01-21
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14112


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