Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Martijn Stroeven"'
Autor:
Piet Stroeven, Martijn Stroeven
Publikováno v:
Image Analysis and Stereology, Vol 22, Iss 1, Pp 1-10 (2011)
The establishment of an experimental basis for the dependence of a mechanical property on certain structural features (and the associated micro-mechanical properties) would require extensive, cumbersome and complicated testing: mechanical testing for
Externí odkaz:
https://doaj.org/article/ebdb5e8cd8f54b64b3473f27a88af011
Publikováno v:
Image Analysis and Stereology, Vol 29, Iss 2, Pp 79-84 (2011)
The shape of cement particles plays an important role in the hydration process due to surface dissolution and hardening process. Nevertheless, a spherical particle shape is normally assumed in conventional simulation systems, because of the inherent
Externí odkaz:
https://doaj.org/article/b7e300d1c5c9458480b26b341f63d71c
Autor:
Piet Stroeven, Martijn Stroeven
Publikováno v:
Image Analysis and Stereology, Vol 19, Iss 2, Pp 85-90 (2011)
Interest in material structure has been raised by upgrading of cementitious systems. Computer-simulation of material structure has been pursued so far by using random generators. Such systems were successfully applied for estimating global properties
Externí odkaz:
https://doaj.org/article/ebcb2f4e9d324586ac6b7672d36cbe54
Publikováno v:
Image Analysis and Stereology, Vol 26, Iss 3, Pp 137-143 (2011)
Aggregate occupies at least three-quarters of the volume of concrete, so its impact on concrete's properties is large. The aggregate's influence on the non-hydrated part of the matured paste is assessed by concurrent algorithm-based computer simulati
Externí odkaz:
https://doaj.org/article/191c5135d5084a8ab102a916660b9f37
Publikováno v:
Cement and Concrete Research. 102:99-108
The interfacial transition zones (ITZs) are supposed to promote fluid transport through concrete. As a consequence, one would expect an increase in permeability with an increasing aggregate fraction. This has been shown in some experiments, however,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c622b93fd4a0f65e95aca8ccf341ebf
https://doi.org/10.1016/j.cemconres.2017.09.005
https://doi.org/10.1016/j.cemconres.2017.09.005
Publikováno v:
Cement and Concrete Composites. 84:222-231
In this study, a numerical approach developed in our group is used to assess the permeability of partially saturated cement paste based on a discrete element modelling (DEM) technique. The relationship between saturation degree and permeability is fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e46a692d7e0ee46a31a92833d04ec91
https://doi.org/10.1016/j.cemconcomp.2017.09.013
https://doi.org/10.1016/j.cemconcomp.2017.09.013
Estimating permeability of cement paste using pore characteristics obtained from DEM-based modelling
Publikováno v:
Construction and Building Materials. 126:740-746
Although an earlier developed numerical methodology for permeability estimation of cement pastes can provide satisfactory results in comparison with experiments, it would be of engineering interest to find a simpler way to perform the same task. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e84132084fd367dbfc70585c351fcfc9
https://doi.org/10.1016/j.conbuildmat.2016.09.096
https://doi.org/10.1016/j.conbuildmat.2016.09.096
Publikováno v:
Cement and Concrete Research. 83:104-113
Permeability of virtual cement seems to exceed experimental data by several orders of magnitude. The difference may not be that dramatic, since samples are in practise not always fully saturated as generally assumed. This has enormous effects on perm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dec9596ac23ccac0d65eafd7f8729911
https://doi.org/10.1016/j.cemconres.2016.02.002
https://doi.org/10.1016/j.cemconres.2016.02.002
Publikováno v:
Construction and Building Materials. 88:105-117
Realistic three-scale simulation by DEM of particulate materials like concrete is nowadays possible by fast developments in computer technology. This would be an attractive alternative for systematic physical experimenting that is more time-consuming
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fba1fdd883d774385823ce443b7e831
https://doi.org/10.1016/j.conbuildmat.2015.04.012
https://doi.org/10.1016/j.conbuildmat.2015.04.012
Publikováno v:
Computational Materials Science. 78:12-21
A numerical multi-component model to simulate the microstructural evolution of plain cement as well as pozzolanic blended cement during hydration is presented. The model is an extension of the so-called “Integrated Particle Kinetics Model” (IPKM)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72f858fde592c58318a3fe7765a92577
https://doi.org/10.1016/j.commatsci.2013.05.021
https://doi.org/10.1016/j.commatsci.2013.05.021