Experimental Investigation on Related Properties of Asphalt Mastic Containing Recycled Cement Mortar Powder

Abstract

Some properties of asphalt mastic containing recycled cement mortar powder (CMP) were investigated in this paper. CMP was used as filler in asphalt mastic. The investigated mastic consisted of asphalt and filler at a mass ratio of 1:1. Penetration, softening point and high-temperature viscosity were tested. Dynamic Shear Rheometer (DSR) was used to conduct frequency sweep test of asphalt mastic. The introduction of CMP resulted in reduced penetration, increased softening point, apparent activation energy, complex shear modulus in the low frequency area and high-temperature viscosity. Results indicate that CMP may have some positive effect on high-temperature properties but some negative effect on low-temperature properties of asphalt mastic. It is also believed that the average mixing and compacting temperature of asphalt mixture containing CMP is higher than that containing limestone mineral filler (LMF).

Design and Experimental Verification of Asphalt‐Based Material for Grouting of Prestressed Structure

“…Compared with traditional cement-based grouting material, asphalt-based grouting material has the advantages of no bleeding, no shrinkage, impervious, high adhesion, and self-healing ability [14,15]. ese properties of asphalt-based material make it suitable for some engineering applications as filling and anticorrosion [16][17][18]. However, there are few studies [19][20][21] on the application of asphalt-based material for grouting of prestressed duct.…”