Effect of Mix Parameters on the Dynamic Mechanical Properties of Cement Asphalt Mortar
Publication: Journal of Materials in Civil Engineering
Volume 29, Issue 8
Abstract
In this paper, the effects of key mix parameters, including asphalt–cement ratio (A/C), water–cement ratio (W/C), and sand–cement ratio (S/C), on the dynamic mechanical properties of the cement asphalt (CA) mortar used in the ballastless slab track of high-speed rail were investigated by dynamic mechanical thermal analysis (DMTA). Results showed that storage modulus () increased with increased S/C ratio and decreased A/C and W/C ratios. The damping ability of CA mortar, which is characterized by , increased with increased A/C and W/C ratios. In comparison with Type-II CA mortar which has a lower A/C ratio, of Type-I CA mortar with a higher A/C ratio presented a different dependency on the S/C ratio. Relationships between dynamic mechanical properties ( and ) and volume fraction of phases in CA mortar were quantitatively established.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This work was supported by the National Natural Science Foundation of China (Grants 51478476 and 51208515) and the National Basic Research Program of China (the 973 Program) (Grant 2013CB036201).
Conflict of Interest
The authors declare that no conflict of interest exists.
References
Chinadaily. (2016). “30,000 km expansion of rail network planned.” ⟨http://www.chinadaily.com.cn/china/2016-07/22/content_26178328.htm⟩ (Jun. 22, 2016).
China Railway Ministry. (2008a). “Provisional technical conditions of CRTS I type cement and asphalt mortar for ballastless slab track in passenger dedicated railway line.” Science technology based, Beijing (in Chinese).
China Railway Ministry. (2008b). “Provisional technical conditions of CRTS II type cement and asphalt mortar for ballastless slab track in passenger dedicated railway line.” Science technology based, Beijing (in Chinese).
Chinese Standard. (2007). “Common portland cement.” GB175-2007, Standardization Administration of China, Beijing (in Chinese).
Cho, S. W., Yang, C. C., and Huang, R. (2000). “Effect of aggregate volume fraction on the elastic moduli and void ratio of cement-based materials.” J. Mar. Sci. Tech., 8(1), 1–7.
Chua, P. S. (1987). “Dynamic mechanical analysis studies of interphase.” Polym. Compos., 8(5), 308–313.
Deng, D. H., Tian, Q., Liu, Z. Q., and Yuan, Q. (2014). “Physical structure of hardened cement asphalt paste for the slab track of high-speed railway.” Sci. China-Tech. Sci., 44(7), 661–671 (in Chinese).
Deng, D. H., Xin, X. Z., Xie, Y. J., and Yuan, Q. (2013). Construction technology of cement asphalt cushion layer of CRTS II type ballastless slab track, China Railway Publishing House, Beijing (in Chinese).
Foray-Thevenin, G., Vigier, G., Vassoille, R., and Orange, G. (2006). “Characterization of cement paste by dynamic mechanical. Part I: Operative conditions.” Mater. Charact., 56(2), 129–137.
Gautier, P. E. (2015). “Slab track: Review of existing systems and optimization potentials including very high speed.” Constr. Build. Mater., 1(92), 9–15.
Gu, J., Wu, G. H., and Zhang, Q. (2007). “Effect of porosity on the damping properties of modified epoxy composites filled with fly ash.” Scripta Mater., 57(6), 529–532.
Pabst, W., and Gregorová, E. (2014). “Young’s modulus of isotropic porous materials with spheroidal pores.” J. Eur. Ceram. Soc., 34(1), 3195–3207.
Powers, T. C. (1961). “Fundamental aspects of shrinkage of concrete.” Rev. Mater., 544, 79–85.
Powers, T. C., and Brownyards, T. L. (1948). “Studies of the physical properties of hardened cement paste.” Research Laboratories of the Portland Cement Association Bulletin 22, American Concrete Institute, Chicago, 101–132.
Treviso, A., Van Genechten, B., Mundo, D., and Tournour, M. (2015). “Damping in composite materials: Properties and models.” Compos.: Part B: Eng., 78(1), 144–152.
Whiting, D., Blankenhorn, P. R., and Kline, D. E. (1975). “Dynamic mechanical response of polymer-impregnated mortars.” Polym. Eng. Sci., 15(2), 65–69.
Whiting, D., and Kline, D. E. (1976). “Internal friction in polymer-impregnated hardened cement paste.” J. Appl. Polym. Sci., 20(20), 3337–3351.
Yang, C. C., and Huang, R. (1996). “Double inclusion model for approximate elastic moduli of concrete material.” Cem. Concr. Res., 26(1), 83–91.
Yuan, Q., Liu, W. T., Pan, Y. R., Deng, D. H., and Liu, Z. Q. (2015). “Characterization of cement asphalt mortar for slab track by dynamic mechanical thermoanalysis.” J. Mater. Civ. Eng., .
Zech, B., and Setzer, M. J. (1988). “The dynamic elastic modulus of hardened cement paste. Part I: A new statistical model—Water and ice filled pores.” Mater. Struct., 21(5), 323–328.
Ziegel, K. D., and Romanov, A. (1973). “Modulus reinforcement in elastomer composites. Part II: Inorganic fillers.” J. Appl. Polym. Sci., 17(4), 1119–1131.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 29 • Issue 8 • August 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jun 29, 2016
Accepted: Dec 7, 2016
Published online: Apr 8, 2017
Published in print: Aug 1, 2017
Discussion open until: Sep 8, 2017
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.