Research on Mechanical Properties of Cement-gravel Core Material

DOI

10.2991/asei-15.2015.371How to use a DOI?

Keywords

high earth-rockfill dam, cement-gravel core material , cement mixing ratio, mechanical property

Abstract

Cement-gravel core material with clay cement and gravel as the primary ingredients is a new core material for embankment dam, and it is generally perceived to have broad applications in the field of dam construction since the stress-strain behavior of such core material is between gravelly soil core and rockfill. Through the triaxial CD test of this material with different cement mixing ratios(wc), the effect of cement mixing ratio on the stress-strain behavior is experimented. The results indicate that the axial deviatoric stress-axial strain and volumetric strain-axial strain curves of this material exhibit softening and dilatancy in different degree respectively as cement mixing ratio increasing. Given the same cement mixing ratio, the peak strength performs almost linearly with an increase of confining pressure. The same pattern is also applicable to the internal friction angle as cement mixing ratio increasing. In addition, the cohesion and secant modulus significantly increase as cement mixing ratio increasing. The research results can provide limited technical support for mechanical properties of cement-gravel soil applied to the core material of high earth-rockfill dam.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Zhong Liu
AU  - Ruishe Qiao
AU  - Na Li
AU  - Bojin Hao
AU  - Yuqin Gao
PY  - 2015/05
DA  - 2015/05
TI  - Research on Mechanical Properties of Cement-gravel Core Material
BT  - Proceedings of the 2015 International conference on Applied Science and Engineering Innovation
PB  - Atlantis Press
SP  - 1875
EP  - 1881
SN  - 2352-5401
UR  - https://doi.org/10.2991/asei-15.2015.371
DO  - 10.2991/asei-15.2015.371
ID  - Liu2015/05
ER  -