Examining the effects of contributory factors on curing process of cold bitumen emulsion mixtures

Nassar, Ahmed I.; Thom, Nicholas; Parry, Tony

Abstract

Curing of Cold Bitumen Emulsion Mixtures (CBEMs) is influenced by different factors such as curing temperature, curing time, humidity and presence of cement. In this study, the influence of these contributory factors on CBEMs has been evaluated in terms of indirect tensile stiffness modulus. During the curing period, the mix moisture content has been monitored. The results showed that the high curing temperature is responsible for additional stiffness gain by increasing the binder stiffness due to ageing and by increasing the moisture loss by evaporation during the curing process. However, at high curing temperature the moisture loss by evaporation may hinder the hydration of cement. Moreover, the results also indicate that the high relative humidity level influences the stiffness modulus of CBEMs negatively.

Citation

Nassar, A. I., Thom, N., & Parry, T. (2016). Examining the effects of contributory factors on curing process of cold bitumen emulsion mixtures. In Functional pavement design: proceedings of the 4th Chinese-European Workshop on Functional Pavement Design (4th CEW 2016, Delft, The Netherlands, 29 June - 1 July 2016)

• Conference Name: Fourth International Chinese European Workshop on Functional Pavement Design
• Start Date: Jun 29, 2016
• End Date: Jul 1, 2016
• Acceptance Date: Feb 29, 2016
• Publication Date: Jun 24, 2016
• Deposit Date: May 21, 2016
• Publicly Available Date: Jun 24, 2016
• Peer Reviewed: Peer Reviewed
• Book Title: Functional pavement design: proceedings of the 4th Chinese-European Workshop on Functional Pavement Design (4th CEW 2016, Delft, The Netherlands, 29 June - 1 July 2016)
• Keywords: Cold bitumen emulsion mixtures; Curing temperature; Cement; Relative humidity; Indirect tensile stiffness modulus
• Public URL: https://nottingham-repository.worktribe.com/output/774788