The durability of the asphalt is of great significance to its pavement performance, so more and more effort has been addressed on improving the asphalt anti-aging performance. In this work, the effects of antioxidant type and formula on the asphalt anti-aging performance were investigated through various measurements before and after aging process including needle penetration, softening point and ductility. Furthermore, the aging mechanism was analyzed via the FTIR (Fourier Transform Infrared) test. As a result, composite antioxidant can observably improve aging resistance of the asphalt. When the formula is 1.2%B+1.5%C+1.2%D, the needle penetration, ductility, softening point are as follows: 39.4×10-1mm, 148.1cm, 52.1°C. FTIR shows that carbonyl absorption peak reduced. Moreover, composite antioxidant can be more stable improvement of asphalt aging effect due to the cooperativity.

The engineering property of water-based epoxy resin mortar was investigated in this paper, the fluidity and pin performance are analyzed. Influence of water-based epoxy resin ratio on engineering property was discussed. As the results showed, the fluidity decreases with the increase of resin dosage(water-based epoxy resin on the percentage of total materials), and the best resin dosage is 9.7% around. The shear strength expression was nonlinear fitted, and the integration of shear strength and tensile strength was completed based on the experimental results to guide the engineering application.

In this paper, The performance of Environmental protection waste plaster foamed concrete was investigated, and the strength, dry density and bibulous rate are analyzed. Influence of WG/EP(dosage ratio of waste gypsum and expanded perlite) in 1/10~6/5 range on performance of Environmental protection waste plaster foamed concrete was discussed. As the results showed, the compressive strength rises with the increase of WG/EP, and the 3d~28d compressive strength growth rate() reduces; The flexural strength increases relatively greatly with WG/EP in 3/8~4/7 range, The dry density rises with the increase of WG/EP, and the bibulous rate decreases.