Study on the Cooling Effect of Zeolite Powder to High Viscosity Asphalt Mixture

Abstract:

Compared with tradition asphalt mixture, the construction temperature of high viscosity asphalt mixture is higher in the tunnel construction. It is necessary to adopt the warm mix technique of adding warm mix additives in high viscosity asphalt. The paper analysis the temperature decrease effect in adding zeolite powder in high viscosity asphalt and the performance of asphalt mixture with zeolite powder additive. The study result shows that the adding 8% of zeolite powder in viscous asphalt can cut viscous asphalt construction temperature of 15 °C or so. Air voids as one kind of volume indicators determines the high viscosity asphalt construction temperature, the cooling amplitude rate is 10 ~ 15 °C.

• Periodical: Applied Mechanics and Materials (Volumes 670-671)
• Pages: 449-453
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.670-671.449
• Online since: October 2014
• Authors: Xi Rong Wu*, Su Xian Li
• Keywords: Cooling Effect, High Viscosity Asphalt, Porosity, Zeolite Powder

References

[1] JTJ 052- 2000. Test Procedures Of Highway Engineering Asphalt and Asphalt Mixture [S].

[2] JTG E42-2005. Test Procedures Of Highway Engineering Aggregate [S].

[3] JTG F40-2004. Construction Technical Specification For Highway Asphalt Pavement[S].

[4] CHEN Hua-xin, HU Chang-shun．Viscosity Properties Of Modified Asphalt and Construction Temperature Control [J]. petroleum asphalt. 2003. 12.

[5] National Cooperative Highway Research Program Re-port 459, Characterization of Modified Asphalt. Binders in Superpave Mix Design [M], 2001. 3~10.