Study of High Temperature Performance and Low Temperature Property on Layered Silicate Modified Asphalt Concrete

Abstract:

Montmorillonite (MMT), a typical layered silicate, has been widely used to prepare modified asphalt. This paper investigates the high temperature performance and low temperature property on layered silicate modified asphalt concrete. The control concrete is prepared by base asphalt. Meanwhile, three-point bending, conventional and SHRP rutting tests are used to compare the properties of the two types of asphalt concrete. The results of conventional and SHRP rutting tests show that the modified asphalt concrete exhibits a better high temperature performance than the control concrete. And the maximum bending strength of modified asphalt concrete is higher than that of control concrete at the same temperature. It can be concluded that both the high temperature performance and low temperature property of asphalt concrete has been improved efficiently by utilization of layered silicate modified asphalt.

• Periodical: Key Engineering Materials (Volume 509)
• Pages: 189-193
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.509.189
• Online since: April 2012
• Authors: Shao Peng Wu, Tian Gui Liu, Ling Pang, Ting Wei Cao, Pan Pan
• Keywords: High Temperature Performance, Layered Silicate Modified Asphalt Concrete, Low Temperature Property, SHRP Rutting Test

References

[1] A. Rehab, N. Salahuddin: Nanocomposite materials based on polyurethane intercalated into and montmorillonite clay, Materials science and engineering, Vol. 399(2000), pp.368-376.

DOI: 10.1016/j.msea.2005.04.019

[2] J.Y. Yu, X. Zeng, S.P. Wu: Preparation and properties of montmorillonite modified asphalts, Material Science and Engineering, Vol. 2(2007), pp.233-238.

[3] A. A. A. Molenaar, D. B. Ghile, M. F. C van de Ven: Nano-clay modification of bitumen, Delft University of Technology(2006).

[4] S. G. Jahromi, A. Khodaii: Effects of nanoclay on rheological properties of bitumen binder, Construction and Building Materials, Vol. 23(2009), pp.2894-2904.

DOI: 10.1016/j.conbuildmat.2009.02.027

[5] S.P. Wu, Y. Xiao, Q.T. Liu: Temperature sensitivity of Asphalt-aggregate Adhesion via Dynamic Mechanical Analysis, Key Engineering Materials, Vol. 385(2008), pp.473-476.

DOI: 10.4028/www.scientific.net/kem.385-387.473

[6] A.Q. Saad, A.S. Haider: Effect of aggregate properties on asphalt mixtures stripping and creep behavior, Construction and Building Materials, Vol. 21(2007), pp.1886-1898.

DOI: 10.1016/j.conbuildmat.2005.07.014

[7] U. Isacsson, H. Zeng: Cracking of asphalt at low temperature as related to bitumen rheology, Journal of material science, Vol. 33(1998), pp.2165-2170.

DOI: 10.1023/a:1004383506240

[8] F. Zhang, J.Y. Yu: The research for high-performance SBR compound modified asphalt, Construction and Building Materials, Vol. 24(2010), pp.410-418.

DOI: 10.1016/j.conbuildmat.2009.10.003