Journal Published Online: 16 October 2013
Volume 42, Issue 1

Particle Breakage of Cement Ellipsoid Aggregate—Part I: Triaxial Compression Tests

CODEN: JTEVAB

Abstract

Cement ellipsoid aggregate was adopted to simulate rockfill materials in laboratory tests. The specimen was prepared by mixing cement ellipsoids of four diameters in a particular ratio. Triaxial compression tests and isotropic compression tests were then conducted to investigate the macroscopic stress–strain relationship of the aggregate, and the crushing characteristics of the cement ellipsoids. The particle size distributions were analyzed after testing. No particle breakage occurred during the isotropic compression tests or the unloading–reloading process of the triaxial compression tests; this implied that breakage of the cement ellipsoids mainly occurs during the shearing process of loading. Sieving analysis showed that the sizes of the larger particles did not change much; crushing mainly produced small particles and, thus, changed the particle size distribution.

Author Information

Zhang, Bing-yin
State Key Laboratory of Hydroscience and Engineering, Tsinghua Univ., Beijing, CN
Jie, Yu-xin
State Key Laboratory of Hydroscience and Engineering, Tsinghua Univ., Beijing, CN
Kong, De-zhi
State Key Laboratory of Hydroscience and Engineering, Tsinghua Univ., Beijing, CN
Pages: 12
Price: $25.00
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Details
Stock #: JTE20120283
ISSN: 0090-3973
DOI: 10.1520/JTE20120283