Matériaux et constructions
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M&S highlight: Limbachiya, et al. (2000), Use of recycled aggregate in high-strength concrete
Matériaux et constructions - Tập 55 - Trang 1-7 - 2022
As a solution to the disposal of construction and demolition waste and the
shortage of concrete raw materials, recycled aggregate concrete has been studied
by pioneer academics and industry researchers for decades. This paper analyzed a
milestone paper by Limbachiya, Leelawat, and Dhir (2000) in the field of
high-strength recycled aggregate concrete and its far-reaching impact on the
research of r...
A multi-scale approach for simulation of capillary absorption of cracked SHCC based on crack pattern and water status in micropores
Matériaux et constructions - - 2021
Determination of Mohr–Coulomb failure envelope, mechanical properties and UPV of commercial cement-lime mortar
Matériaux et constructions - Tập 55 - Trang 1-19 - 2022
Mortar in masonry structures can be subjected to both uniaxial and triaxial
loading. Determining the mechanical properties and/or failure criteria of the
commonly used mortar is necessary for the structural performance assessment of
new and existing masonry buildings using non-destructive testing and/or finite
element modelling methods. In this paper, the stress–strain behaviour of a
commercially ...
Unsaturated diffusivity functions for concrete derived from NMR images
Matériaux et constructions - - 2003
Deterioration of concrete or reinforcing steel through excessive contaminant
concentration is often the result of repeated wetting and drying cycles. At each
cycle, the absorption of water carries new contaminants into the unsaturated
concrete. Nuclear Magnetic Resonance (NMR) is used with large concrete samples
to observe the shape of the wetting profile during a simple one-dimensional
wetting pr...
Compressive-force path and behaviour of prestressed concrete beams
Matériaux et constructions - Tập 26 - Trang 74-89 - 1993
A study of the performance of prestressed concrete beams designed either by
conventional design methods or to a physical model proposed in compliance with
the ‘compressive-force path’ concept is presented. Results obtained from testing
heavily prestressed beams are reported, which show that members designed to the
latter concept may be safer than their Code counterparts. The behaviour of these
bea...
Numerical evaluation of the non-linear behaviour of cracked RC members under variable-amplitude cyclic loading
Matériaux et constructions - Tập 48 - Trang 2815-2838 - 2014
The accurate calculation of the non-linear behaviour of reinforced concrete (RC)
members under cyclic loading requires that realistic constitutive models are
employed to describe the material responses and robust numerical methods are
used to achieve the solution. Given the complex nature of the mechanical
behaviour of RC members after cracking, widely accepted numerical methods are
still not avai...
Studies on ductility and evaluation of minimum flexural reinforcement in RC beams
Matériaux et constructions - Tập 41 - Trang 759-771 - 2007
Some experimental investigations on ductility and prediction of minimum flexural
reinforcement in reinforced concrete (RC) beams are reported. The minimum
flexural reinforcement was evaluated using optimum ductility in RC beams. Beams
of size 100 mm, 200 mm and 400 mm were tested, which were designed with varying
percentages of flexural reinforcement i.e. 0.15, 0.30, 0.60 and 1.0. The beams
were t...
Flexural bond strength of masonry using various blocks and mortars
Matériaux et constructions - Tập 29 - Trang 119-124 - 1996
This paper deals with an experimental study on flexural bond strength of masonry
using various blocks in combination with different mortars. Flexural bond
strength of masonry has been determined by testing stack-bonded prisms using a
modified bond wrench test set-up. The effect of mortar composition and strength
on the masonry's flexural bond strength using three types of masonry units
(stabilized...
The influence of the chemical composition of hydrogels on their behavior in cementitious materials
Matériaux et constructions - Tập 54 - Trang 1-19 - 2021
This study examines how the chemical composition of hydrogels influences the
behavior of hydrogels in cementitious materials. A stark contrast in the
behavior of some hydrogels in extracted cement pore solution, where cement
particles are excluded, and in cement mixture was observed. The observed
contrast was attributed to the chemical processes between the hydrogel and
cement particles, which are...
Methodological developments in the testing of wood based panels. Part I: Tensile and compression tests
Matériaux et constructions - Tập 27 - Trang 229-236 - 1994
As part of the European standards studies of CEN Communittee 124, dealing with
wood structures, a test methodology has been worked out to establish certain
mechanical prosperites of board for structural uses. This article discusses the
methodological aspects of calculating the modulus and the strength of wood based
board (particleboard and plywood) for tensile and compression stresses. The
develop...
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