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Properties Of Concrete

Discrete particle simulation of particulate systems: A review of major applications and findings

Summary) The abstract should follow the structure of the article (relevance, degree of exploration of the problem, the goal, the main results, conclusion) and characterize the theoretical and practical significance of the study results. The abstract should not contain wording echoing the title, cumbersome grammatical structures and abbreviations. The text should be written in scientific style. The volume of abstracts (summaries) depends on the content of the article, but should not be less than 250 words. All abbreviations must be disclosed in the summary (in spite of the fact that they will be disclosed in the main text of the article), references to the numbers of publications from reference list should not be made. The sentences of the abstract should constitute an integral text, which can be made by use of the words “consequently”, “for example”, “as a result”. Avoid the use of unnecessary introductory phrases (eg, “the author of the article considers...”, “The article presents...” and so on.)

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Ministry of Education and Science of the Russian Federation

Properties and applications of foamed concrete; a review

Identifying the key parameters that influence geogrid reinforcement of railway ballast

A discrete element model has been developed for geogrid-reinforced ballast. A model for unreinforced ballast has first been developed and evaluated using simulations of large-scale triaxial experiments and comparing with available data. A model for the geogrid has also been developed by bonding many small balls together to form the desired geometry and evaluated by simulating standard tests. The discrete element method (DEM) has then been used to model the interaction between ballast and geogrid by simulating pull-out tests and comparing with experimental data. The DEM simulations have been shown to predict well the peak mobilised resistance and the displacement necessary to mobilise peak pull-out force. The effect of the ratio of the geogrid aperture size to ballast particle diameter on pull-out resistance has also been investigated. The zone of influence of the geogrid has also been examined by simulating larger-scale pull-out tests in addition to cyclic triaxial tests. The method holds much promise as ...

Discrete element modelling of geogrid-reinforced aggregates

https://nottingham-repository.worktribe.com/preview/754382/On%20void%20structure%20and%20strength%20of%20%20foamed%20concrete%20made%20without%20with%20additives.pdf

Nick Thom

Papers

Identifying the key parameters that influence geogrid reinforcement of railway ballast

Discrete element modelling of geogrid-reinforced aggregates

On void structure and strength of foamed concrete made without/with additives

Discrete element modelling of cyclic loads of geogrid-reinforced ballast under confined and unconfined conditions

A study into the use of crumb rubber in railway ballast