High Temperature Properties of Asphalt Modified with Two Kinds of OMMTs
In order to improve the rutting resistance of the asphalt pavement, the base asphalt needs to be modified. Two kinds of nano-organic montmorillonite (nano-OMMT) with different interlayer spacing were used as the modifier. The content of the two OMMTs in asphalt is the same, being 3wt%. The high temperature properties of the modified asphalts were compared. The effect of interlayer spacing of nano-OMMT was discussed. Results have shown that different nano-OMMT interlayer spacing leads to different high temperature properties. The asphalt modified by 3wt% of the OMMT with the interlayer spacing of 2.8nm shows better high temperature resistance that modified by the OMMT with the interlayer spacing of 3.8nm. More nano-OMMTs with other interlayer spacings should be used to explore the effect of interlayer spacings on the properties of asphalt.
Z.S. Liu, L.P. Xu, X.D. Liang, Z.H. Wang and H.M. Zhang
Z. P. Zhang et al., "High Temperature Properties of Asphalt Modified with Two Kinds of OMMTs", Advanced Materials Research, Vol. 1015, pp. 14-17, 2014