Evaluating Mechanical Properties of Cement Materials by Depth-Sensing Indentation Method

Abstract:

The energy consumption of crushing is directly affected by the mechanical properties of cement materials. The elastic modulus, energy dissipation, recovery resistance and other mechanical properties of cement materials are evaluated based on the depth-sensing indentation method in this work. It is significant and efficient for engineering application. In results, the calculated elastic modulus is close to that measured by dynamic method, being used to verify the correctness of the calculated data. And the calculated energy dissipation of clinker is higher than that of limestone and granite, which can partially be used to explain why the grinding of clinker consumes a lot of energy in cement industry. The recovery resistance of clinker is almost identical to that of granite, more than that of limestone. It is found that the clinker, in contrast to granite and limestone, exhibits better plasticity and greater energy absorption capacity.

• Periodical: Applied Mechanics and Materials (Volumes 44-47)
• Pages: 2587-2591
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.44-47.2587
• Online since: December 2010
• Authors: Xiu Fang Wang, Yi Wang Bao, Kun Ming Li, Yan Qiu, Xiao Gen Liu
• Keywords: Depth Sensing Indentation (DSI), Energy Dissipation, Recovery Resistance, Vickers Indentation

References

[1] M.F. Doerner, W.D. Nix. A method for interpreting the data from depth-sensing indentation instruments [J]. J. Mater. Res., 1986, 1: 601-609.

DOI: 10.1557/jmr.1986.0601

[2] W.C. Oliver, G.M. Pharr. An improved technique for determining hardness and elastic modulus using load and displacements using indentation experiments [J]. J. Mater. Res., 1992, 7(6): 1564-1583.

DOI: 10.1557/jmr.1992.1564

[3] Hertz H. On the contact of elastic solids [J]. J Reine Angew Math 1881; 92: 156-71.

[4] D. Touil, S. Belaadi, C. Frances. Energy efficiency of cement finish grinding in a dry batch ball mill [J]. Cement and Concrete Research, 2006, 36(3): 416-421.

DOI: 10.1016/j.cemconres.2005.12.005

[5] Mats Lindqvist. Energy considerations in compressive and impact crushing of rock [J]. Minerals Engineering，2008, 21: 631-641.

DOI: 10.1016/j.mineng.2007.11.013

[6] Y.W. Bao, W. Wang, Y.C. Zhou. Investigation of the relationship between elastic modulus and hardness based on depth-sensing indentation measurements [J]. Acta Materialia, 2004, 52: 5397-5404.

DOI: 10.1016/j.actamat.2004.08.002

[7] Y.W. Bao, L. Z. Liu and Y.C. Zhou. Assessing the elastic parameters and energy-dissipation capacity of solid materials: A residual indent may tell all，Acta Materialia, 2005, 53: 4857-4862.

DOI: 10.1016/j.actamat.2005.06.031

[8] ISO/FDIS 17561: 2001(E). Fine ceramics -Test method for elastic modulus of monolithic ceramics at room temperature by sonic resonance.

DOI: 10.3403/30325697u