## 2 Test Equipment and Material Properties
### Test of Material Performance  
(1) Performance of asphalt binder material  
The base asphalt used was SK70# road petroleum asphalt, which conforms to the Technical Specification for Construction of Highway Asphalt Pavement JTG F40-2004 [4]. The technical specifications are shown in Table 2. The technical indexes of the two cationic emulsified asphalts are shown in Tables 3 and 4. \begin{table}
\begin{tabular}{c c c c} \hline
**Test Items** & **Measured Data AH-70** & **Technical Requirements AH-70** & **Test Method** \\ \hline Penetration (25 \({}^{\circ}\)C, 100 g, 5 s, 0.1 mm) & 79.4 & 60–80 & T0604 \\ Softening point (\({}^{\circ}\)C) & 46.76 & \(\geq\)46 & T0606 \\ Ductility (10 \({}^{\circ}\)C) (cm) & 147.5 & \(\geq\)20 & T0605 \\ Ductility (15 \({}^{\circ}\)C) (cm) & \textgreater{}200 & \(\geq\)100 & T0605 \\
60 \({}^{\circ}\)C Dynamic viscosity (Pa.s) & 297 & \(\geq\)180 & T0620 \\ Asphalt flash point (\({}^{\circ}\)C) & 284 & \(\geq\)46 & T0611 \\ Residual needle penetration ratio (25 \({}^{\circ}\)C) & 82.1 & \(\geq\)61 & T0604 \\ Residual ductility (10 \({}^{\circ}\)C) (cm) & 8.5 & \(\geq\)6 & T0605 \\ Residual ductility (15 \({}^{\circ}\)C) (cm) & 33 & \(\geq\)15 & T0605 \\ \hline \end{tabular}
\end{table} 
Table 2: Test results of asphalt raw materials. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Index** & **Unit** & **Measured Value** & **Technical Requirement** & **Test Method** \\ \hline Crushing value of stone & \% & 20.4 & \(\leq\)26 & T0316 \\ Los Angeles attrition loss & \% & 25.33 & \(\leq\)28 & T0317 \\ Apparent relative density & \% & 2.855 & \(\geq\)2.60 & T0304 \\ Bibulous rate & \% & 0.68 & \(\leq\)2.0 & T0304 \\ Needle-like particle content & \% & - & \(\leq\)15 & T0317 \\ Water washing method \textless{}0.075 mm & \% & 0.93 & \(\leq\)1 & T0310 \\ Particle concentration & \% & 0.93 & \(\leq\)1 & T0310 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Fine aggregate for asphalt mixture. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Technical Indicators** & **Unit** & **Inspection Results** & **Test Method** \\ \hline Demulsification velocity & - & Quick to crack & T0658 \\ Particle charge & - & Cationic (+) & T0653 \\ On-screen residue (1.18 mm) & \% & 0.08 & T0652 \\ Viscosity & Engler viscometer & - & 3 & T0622 \\ Road standard viscometer & \% & 12 & T0621 \\ Evaporation residue content & \% & 59.4 & T0651 \\ Penetration (25 \({}^{\circ}\)C) & 0.1 mm & 138.19 & T0604 \\ Evaporation residue & Ductility (15 \({}^{\circ}\)C) & cm & 126.67 & T0605 \\ Solubility & \% & 99.4 & T0607 \\ Adhesion with coarse aggregate, adhesion area & - & \(\geq\)2/3 & T0654 \\ Storage stability at room & 1 d & \% & 0.4 \\ temperature & 5 d & \% & 1.8 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Test results of emulsified asphalt B raw material. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Technical Indicators** & **Unit** & **Inspection Results** & **Test Method** \\ \hline Demulsification velocity & - & Slow to crack & T0658 \\ Particle charge & - & Cationic (+) & T0653 \\ On-screen residue (1.18 mm) & \% & 0.07 & T0652 \\ Viscosity & Engler viscometer & - & 3 & T0622 \\ Viscosity & Road standard viscometer & s & 14 & T0621 \\ Evaporation residue content & \% & 64.1 & T0651 \\ Evaporation residue & Penetration (25 \({}^{\circ}\)C) & 0.1 mm & 57.0 & T0604 \\ Ductility (15 \({}^{\circ}\)C) & cm & 82.8 & T0605 \\ Solubility & \% & 99.6 & T0607 \\ Adhesion with coarse aggregate, adhesion area & - & \(\geq\)2/3 & T 0654 \\ Storage stability at room & 1 d & \% & 0.6 \\ temperature & 5 d & \% & 2.0 & T0655 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Test results of emulsified asphalt A raw material.