Brazil Nut Effect and CONCRETE: Entering Terra Incognita

[摘要] This paper presents some evidence of the impact of the Brazil nut effect (BNE) on concrete?s particulate structure on meso-level (aggregate) as well as on micro-level (cement paste). BNE is associated with long-range size segregation in particle mixtures due to vibration in slurry state of concrete, both near boundaries and in bulk. Presented evidences on meso- as well as on micro-level are coming from experiences in practice and in research, as well as from discrete element modelling (DEM) investigations.

[学科分类] 建筑学

[关键词] Brazil nut effect;concrete;aggregate;cement paste;segregation;discrete element method