Is glass brittle at all scales?

Bouchaud, Élisabeth

doi:10.1016/j.crhy.2014.06.002

Cited by 2 publications

(2 citation statements)

References 36 publications

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“…Their results showed that a cement replacement between 10% and 20% gave the highest mechanical strength. Moreover, it can be noticed that concrete is brittle (Sai et al , 2018) and has a low tensile strength; glass is also more brittle and has a very low tensile strength (Bouchaud, 2014). Therefore, concrete based on GP (even glass fibers) also remains brittle (Patel et al , 2019) with low tensile strength.…”

Section: Resultsmentioning

confidence: 99%

Influence of glass powder incorporation on the physical-mechanical properties of sand concrete

Ammari

Tobchi²,

Amrani³

et al. 2021

WJE

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Purpose This study is part of the valorization of local materials and the reuse of industrial waste in construction. This study aims to improve the physical-mechanical properties of sand concrete. This work is a continuation of previous studies conducted on sand concrete, the purpose of which is to introduce industrial waste into this material. For this purpose, a glass waste in powder form is added. Design/methodology/approach This study is focused on the effect of adding glass powder (GP) whose mass percentage varies from 0 to 40% with an interval of 10% to target the right composition that ensures the best compromise between the characteristics studied. Findings The results found show that the workability and density of the studied concretes decreased with increasing GP dosage. Indeed, the optimal addition which constitutes the best compromise between the studied properties is 10% of GP. Improvements of up to about 9% in the case of flexural strength and about 18% in the case of compressive strength. The thermal conductivity has been reduced by 12.74%, the thermal diffusivity which characterizes the notion of thermal inertia has been reduced by about 4% and the specific heat mass has been reduced by 7.80%. Also, the shrinkage has been reduced by about 20%. The microstructure of the studied composite shows a good homogeneity between the aggregates. Finally, the addition of GP to sand concrete gives very encouraging results. Originality/value The interest of this study is in two parts. The first one is the exploitation of local materials: dune sand, river sand and limestone filler to meet the growing demand for construction materials. And the second one is the reuse of glass waste, in the form of powder (GP), to solve the environmental problem. All this participates in the improvement of the physical-mechanical properties of sand concrete and the extent of its response to the development of an economical structural concrete.

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Section: Resultsmentioning

confidence: 99%

Influence of glass powder incorporation on the physical-mechanical properties of sand concrete

Ammari

Tobchi²,

Amrani³

et al. 2021

WJE

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“…Self-affine surfaces are abundant in nature but also many industrial and other man-made surfaces display self-affine scaling. Some examples are fractured surfaces in a wide range of materials [43][44][45][46][47]; geological structures covering orders of magnitude in length scales [48,49]; the topography of the sea floor [50]; surfaces resulting from interface growth and roughening phenomena [51]; and the surfaces of cold-rolled aluminum sheets used, for instance, in the building and construction industry for making building facades [52], to mention a few.…”

Section: Introductionmentioning

confidence: 99%

Wave scattering from two-dimensional self-affine Dirichlet and Neumann surfaces and its application to the retrieval of self-affine parameters

et al. 2018

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Wave scattering from two-dimensional self-affine Dirichlet and Neumann surfaces is studied for the purpose of using the intensity scattered from them to obtain the Hurst exponent and topothesy that characterize the self-affine roughness. By the use of the Kirchhoff approximation a closed form mathematical expression for the angular dependence of the mean differential reflection coefficient is derived under the assumption that the surface is illuminated by a plane incident wave. It is shown that this quantity can be expressed in terms of the isotropic, bivariate (α-stable) Lévy distribution of a stability parameter that is two times the Hurst exponent of the underlying surface. Features of the expression for the mean differential reflection coefficient are discussed, and its predictions compare favorably over large regions of parameter space to results obtained from rigorous computer simulations based on equations of scattering theory. It is demonstrated how the Hurst exponent and the topothesy of the self-affine surface can be inferred from scattering data it produces. Finally several possible scattering configurations are discussed that allow for an efficient extraction of these self-affine parameters.

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Is glass brittle at all scales?

Abstract: Prix Aniuta Winter-Klein 2013 de l'Académie des sciences Is glass brittle at all scales? Le verre est-il fragile à toutes les échelles ? Élisabeth Bouchaud a,b, *

Cited by 2 publications

References 36 publications

Influence of glass powder incorporation on the physical-mechanical properties of sand concrete

Influence of glass powder incorporation on the physical-mechanical properties of sand concrete

Wave scattering from two-dimensional self-affine Dirichlet and Neumann surfaces and its application to the retrieval of self-affine parameters

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