High temperature properties and evaluation method of asphalt mortar

作者：Liu Li^*; Hao Pei Wen; Xiao Qing Yi; Wang Hai Nian

来源：Journal of Chang＇an University(Natural Science Edition), 2007, 27(5): 30-34.

To study asphalt mortars'; properties at high temperature, this paper analyzed the influence of three different filler sorts (limestone dust, cement and hydrated lime) and four different mass ratios of filler/asphalt (0.6, 0.8, 1.0, 1.2) on the asphalt mortars'; properties by awl penetration test, dynamic shear rheometer (DSR) and Brookfield viscometer. The contrasts among different test results were presented. The results show that cement and hydrated lime can increase asphalt mortars'; anti-shear stress, Gsinδ and viscosity, and are helpful to its properties at high temperature. Furthermore, anti-shear stress from awl penetration test has a good correlation with Gsinδ and viscosity. It proves that awl penetration test is an effective measurement for studying asphalt mortars'; properties at high temperature. 4 tabs, 5 figs, 10 refs.

• 出版日期2007