Experimental Study on Foaming Characteristics of Foamed Asphalt

Abstract:

This paper presents study on foaming characteristics of two types asphalt with same Penetration-grade 70. Asphalt temperature (AT), water content (WC) and water temperature (WT) were selected for investigation their effects on the asphalt foamability. Maximum expansion ratio (ERMax) and half-life (HL) are important indicators of foamed asphalt. It is concluded that ERMax*HL reachs maximum at optimum foaming condition of foamed asphalt. The conclusion is used as criterion for optimizing foaming condition. The fact that the water temperature influences the ERMax and HL of foamed asphalt significantly was presented.

• Periodical: Applied Mechanics and Materials (Volumes 361-363)
• Pages: 1507-1510
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.361-363.1507
• Online since: August 2013
• Authors: Li Li, Zhou Chao, Wang Nian, Wei Hua Qiao
• Keywords: Foamed Asphalt, Foamed Asphalt Mix, Half-Life, Maximum Expansion Ratio

References

[1] Csanyi LH. Foamed asphalt in bituminous paving mixtures. Highway Res Board Bull 1957; 1(160): 108–22.

[2] Bowering, R.H. Properties and Behavior of Foamed Bitumen Mixtures for Road Building. Proceedings of the 5th Australian Road Research Board Conference, Canberra, Australia, (1970).

[3] Wirtgen GmbH. Wirtgen Cold Recycling Manual, 2nd ed. Windhagen, Germany, (1998).

[4] Gui-ping He, Wing-gun Wong. Decay properties of the foamed bitumens. Construction and Building Materials 20 (2006) 866–877.

DOI: 10.1016/j.conbuildmat.2005.06.027

[5] Roberts, F.L., J.C. Engelbrecht, and T.W. Kennedy. Evaluation of Recycled Mixtures Using Foamed Asphalt. Transnsportation Research Record No. 968, Washington, DC, Transportation Research Board. 1984, pp.78-85.

[6] Van der Walt N., P. Botha, C. Semmelink, F. Engelbrecht, and N. Salminen. The Use of Foamed Bitumen in Full-depth In-place Recycling of Pavement Layers Illustrating the Basic Concept of Water Saturation in the Foam Process. Proceedings of the Seventh Conference on Asphalt Pavements for South Africa, Pretoria, South Africa, (1999).

[7] Van Wijk, A. and L.E. Wood. Use of Foamed Asphalt in Recycling of an Asphalt Pavement. Transportation Research Record No. 911, Transportation Research Board. Washington, DC, 1983., pp.96-103.

DOI: 10.3141/2005-05

[8] Stefan A. Romanoschi, Mustaque Hossain, Michael Heitzman and Andrew J. Gisi. Foamed Asphalt Stabilized Reclaimed Asphalt Pavement: A Promising Technology for Mid-Western Roads. Proceedings of the 2003 Mid-Continent Transportation Research Symposium, Ames, Iowa, August (2003).

DOI: 10.3141/1896-20

[9] Muthen KM. Foamed asphalt mixes: mix design and procedure. Research Report CR-98/077. CSIR Transportek, South Africa; (1998).

[10] Jenkins KJ, Molenaar AAA, De Groot JLA, Van De Ven MFC. Developments in the uses of foamed bitumen in road pavements. HERON 2000; 45(3): 167–76.