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 ava......
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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