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A 2D elliptical model of random packing for aggregates in concrete

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Abstract

In the present work, a computer model was developed to simulate random packing of aggregates. For the sake of simplicity, two dimensional situation was considered and all of the aggregates in concrete were assumed as ellipse. 2D elliptical models of random packing were firstly demonstrated in periodic boundary condition. In addition, the ellipse random packing model was employed for the influence of aspect ratios on the packing fraction of ellipses. The modeling results demonstrate that the packing fraction of ellipses firstly increases then drops down with increasing aspect ratio. The maximal random packing fraction is 0.66 when aspect ratio is 1.04 in the periodic boundary condition.

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Authors and Affiliations

  1. Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China

    Wenxiang Xu  (许文祥), Huisu Chen  (陈惠苏) & Zhong Lv

Authors
  1. Wenxiang Xu  (许文祥)
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  2. Huisu Chen  (陈惠苏)
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  3. Zhong Lv
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Corresponding author

Correspondence to Huisu Chen  (陈惠苏).

Additional information

Funded by the National Natural Science Foundation of China (No. 50708018), the Chinese Ministry of Education Project ( No.20070286018), and the Ministry of Science and Technology of China “973 Project”(No. 2009CB623203)

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Xu, W., Chen, H. & Lv, Z. A 2D elliptical model of random packing for aggregates in concrete. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 25, 717–720 (2010). https://doi.org/10.1007/s11595-010-0078-z

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  • DOI: https://doi.org/10.1007/s11595-010-0078-z

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