Packing density modelling of non-spherical aggreg ates for particle composite design

International Conference Building Materials, Products and Technologies

材料科学;工业技术（总论）

Koutny, O.^1 ; Kratochvil, J.^1 ; Drdlova, M.^1 ; Bystrianska, E.^1

Materials Research Centre, Brno University of Technology, Purkyova 118, Brno

61200, Czech Republic^1

关键词: Binder content;    Bulk packing density;    Cementitious composites;    Compact structures;    Packing density;    Packing models;    Particle composites;    Ultra-high performance cementitious composite;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/583/1/012013/pdf
DOI  :  10.1088/1757-899X/583/1/012013

来源: IOP

【 摘 要 】

The presented study follows the author's results of research where 3-parameter packing model for packing density determination was derived and calibrated for multimodal particular system. In this study previously derived model is extended by fourth parameter related to particle shape and its effect on bulk packing density. The model is primary derived for high performance cementitious composite design where compact structure and low binder content is preferred to maximise mechanical properties and durability. The effect of aggregate packing density on mechanical properties of ultra-high performance cementitious composites is investigated, using derived packing model.