Microstructure-informed modelling of damage evolution in cement paste
نویسندگان
چکیده
منابع مشابه
Water dynamics in cement paste : insights from lattice Boltzmann modelling
Transport properties are often used as indicators of durability because water underpins most of the degradation mechanisms of concrete structures. The objective of this thesis is to understand the link between the microstructure and the permeability of cement paste, the binder phase of concrete. To achieve this goal, the lattice Boltzmann method is used to simulate the flow through three-dimens...
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This work aims to provide a method for numerically and experimentally investigating the fracture mechanism of cement paste at the microscale. For this purpose, a new procedure was proposed to prepare micro cement paste cubes (100 × 100 × 100 µm³) and beams with a square cross section of 400 × 400 µm². By loading the cubes to failure with a Berkovich indenter, the global mechanical properties of...
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It is generally agreed that the cohesion of cement paste occurs through the formation of a network of nanoparticles of a calcium-silicate-hydrate ("C-S-H"). However, the mechanism by which these particles develop this cohesion has not been established. Here we propose a dielectric continuum model which includes all ionic interactions within a dispersion of C-S-H particles. It takes into account...
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ژورنال
عنوان ژورنال: Construction and Building Materials
سال: 2014
ISSN: 0950-0618
DOI: 10.1016/j.conbuildmat.2014.06.017