Properties and Preparation of a New High-Permeability Emulsified Asphalt and Its Modification

Abstract

Emulsified asphalt is widely used as a prime coat in road engineering, especially in pavements with cement-stabilized semi-rigid bases. The objective of this paper is to develop a new emulsified asphalt with high permeability and pulling-off strength. A new type of high-permeability emulsified asphalt was prepared by using 55.2% diluted asphalt (44.16% matrix asphalt + 11.04% diluent) + 40% emulsion (2% emulsifier + 0.5% stabilizer + 1% osmotic agent + 1% op-10 + 35.5% water) + 4.8% aromatic oil. The storage stability was verified to be better, and the penetrating rate and depth were increased largely compared to the traditional products. To improve pulling-off strength, the high-permeability emulsified asphalt was further modified by mixing with 20% water-based epoxy resin and a curing agent. The penetration, pull-off, and shear strength tests were also conducted. It can be found that the permeability, adhesive, and water-resisting properties of the modified high-permeability emulsified asphalt can be further improved to a certain degree.

Research on the Preparation of High Permeability Emulsified Asphalt and Its Properties

“…Combined with the solid engineering, the optimal mixing amount of kerosene permeability agent is determined to be 12%. However, it does not consider the influence of emulsified asphalt with kerosene permeable agent on its own properties.Zhang X [17]Using aromatic hydrocarbon oil as a penetrant to add to the emulsified asphalt, the test shows that compared with the traditional products, the storage stability is better, and the permeability and depth are greatly improved.Shi S [18]Biomass oil was selected as penetrant, and the test structure showed that biomass oil emulsified asphalt has the best permeability performance when the ratio of biomass oil / asphalt is 1:3. Zhang X And ShiS et al chose new materials as permeable agents.…”

Investigation on One-Component Waterborne Epoxy Emulsified Asphalt (OWEEA) Used as Bonding Material

“…Currently, modification of emulsified asphalt is the main way to achieve the high performance of emulsified asphalt [14,15]. The emulsified asphalt modifiers commonly include Styrene Butadiene Styrene (SBS), Styrene Butadiene Rubber (SBR), and water-based epoxy resins [16,17].…”