Investigation on the Mixing Stability of Asphalt Emulsion with Cement through Viscosity
Publication: Journal of Materials in Civil Engineering
Volume 28, Issue 12
Abstract
Cement asphalt emulsion (CA) mortar is a key material in the nonballast slab track. Its properties are largely dependent on the compatibility between asphalt emulsion and cement. The mixing stability of asphalt emulsion with cement is investigated by analyzing the viscosity of CA paste. Viscosity and the critical particle volume fraction of CA paste are proposed as indexes in evaluating the mixing stability of asphalt emulsion with cement, and factors influencing the mixing stability of asphalt emulsion are studied. Mixing stability is dependent on mixing method, superplasticizer, and emulsion type. The premixing cement method, superplasticizer, and good asphalt emulsion can increase the critical particle volume fraction of CA paste, which is helpful in achieving a low water–to–cement mass ratio (W/C). Anionic emulsion has much better mixing stability with cement than does cationic emulsion. The critical particle volume fraction of CA pastes with anionic emulsion increases stably with the mass ratio of asphalt emulsion to cement (AE/C), but the critical particle volume fraction of CA pastes with cationic emulsion increases little with AE/C. This work proposes a method for choosing an asphalt emulsion with good mixing stability, and provides methods to improve the mixing stability of asphalt emulsion with cement.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The first author acknowledges the support of fundamental research funds from Dalian University of Technology (DUT15RC(3)083).
References
Al-Sabagh, A. M. (2002). “The relevance HLB of surfactants on the stability of asphalt emulsion.” Colloids Surf. A: Physicochem. Eng. Aspects, 204(1–3), 73–83.
Barnes, H. A. (2002). A handbook of elementary rheology, Institute of Non-Newtonian Fluid Mechanics, Univ. of Wales, Aberystwyth, West Wales.
Chinese Railway Specification. (2008). “Technical specification of CA mortar for CRTSII nonballast slab track.” Beijing.
Esveld, C. (2003). “Recent development in slab track.” Eur. Railw. Rev., 2, 81–85.
Hu, S., Wang, T., Wang, F., and Liu, Z. (2009). “Adsorption behaviour between cement and asphalt emulsion in CA mortar.” Adv. Cem. Res., 21(1), 11–14.
James, A. (2006). “Overview of asphalt emulsions.” Transp. Res. Circ., 1–15.
Krieger, I. M., and Dougherty, T. J. (1959). “A mechanism for Non-Newtonian flow in suspensions of rigid spheres.” J. Rheol., 3(1), 137–152.
Liu, D. M. (2000). “Particle packing and rheological property of highly-concentrated ceramic suspensions: determination and viscosity prediction.” J. Mater. Sci., 35(21), 5503–5507.
Liu, J., et al. (2015). “Effect of the stabilizer on bubble stability and homogeneity of cement emulsified asphalt mortar in slab ballastless track.” Constr. Build. Mater., 96, 135–146.
Ouyang, J., and Tan, Y. (2015a). “Rheology of fresh cement asphalt emulsion pastes.” Constr. Build. Mater., 80, 236–243.
Ouyang, J., Tan, Y., Li, Y., and Zhao, J. (2015b). “Demulsification process of asphalt emulsion in fresh cement-asphalt emulsion paste.” Mater. Struct., 48(12), 3875–3883.
Peng, J., Deng, D., Liu, Z., Yuan, Q., and Ye, T. (2014b). “Rheological models for fresh cement asphalt paste.” Constr. Build. Mater., 71, 254–262.
Peng, J., Deng, D., Yuan, Q., and Fang, L. (2014a). “Study of the rheological behavior of fresh cement emulsified asphalt paste.” Constr. Build. Mater., 66(15), 348–355.
Pouliot, N., Marchand, J., and Pigeon, M. (2003). “Hydration mechanisms, microstructure, and mechanical properties of mortars prepared with mixed binder cement slurry-asphalt emulsion.” J. Mater. Civ. Eng., 54–59.
Tan, Y., Ouyang, J., and Li, Y. (2014). “Factors influencing rheological properties of fresh cement asphalt emulsion paste.” Constr. Build. Mater., 68, 611–617.
Tan, Y., Ouyang, J., Lv, J., and Li, Y. (2013). “Effect of emulsifier on cement hydration in cement asphalt mortar.” Constr. Build. Mater., 47, 159–164.
Tregger, N. A., Pakula, M. E., and Shah, S. P. (2010). “Influence of clays on the rheology of cement pastes.” Com. Concr. Res., 40(3), 384–391.
Wang, F., Liu, Y., and Hu, S. (2013). “Effect of early cement hydration on the chemical stability of asphalt emulsion.” Constr. Build. Mater., 42, 146–151.
Wang, F., Liu, Y., Zhang, Y., and Hu, S. (2012). “Experimental study on the stability of asphalt emulsion for CA mortar by laser diffraction technique.” Constr. Build. Mater., 28(1), 117–121.
Wang, F., Liu, Z., Wang, T., and Hu, S. (2008). “A novel method to evaluate the setting process of cement and asphalt emulsion in CA mortar.” Mater. Struct., 41(4), 643–647.
Yang, J., Yan, P., Kong, X., and Li, X. (2010). “Study on the hardening mechanism of cement asphalt binder.” Sci. China, 53(5), 1406–1412.
Zhang, Y., Kong, X., Hou, X., Liu, Y., and Han, S. (2011). “Study on the rheological properties of fresh cement asphalt paste.” Constr. Build. Mater., 27(1), 534–544.
Information & Authors
Information
Published In
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jan 15, 2016
Accepted: Apr 1, 2016
Published online: Jul 6, 2016
Published in print: Dec 1, 2016
Discussion open until: Dec 6, 2016
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.