## 4 Conclusions  
The main objective of this study was to investigate the impact of certain additives, particularly CRM, on the flow and strength properties of TLA-modified asphalt binders. A comprehensive analytical methodology was employed, encompassing the assessment of binder viscosity to determine workability, DSR tests to measure response to dynamic forces, evaluation of rutting resistance, fatigue durability testing, and BBR tests to assess performance at low temperatures, and statistical analyses to interpret the results. The conclusions are as follows:  
1. The addition of TLA greatly increases the viscosity of the PG 64-22 binder. The viscosity shows a noticeable rise at 10% TLA and remains constant at higher concentrations. The addition of CRM enhances viscosity, resulting in a significant increase when 10% CRM is used. This increase in viscosity improves the material's ability to resist deformation and cracking. \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline  & & & & & & & & & & & & & & & & & \\ \hline \multirow{6}{*}{ \begin{tabular}{c} \end{tabular}  } & \multirow{6}{*}{**Combination**} & \multirow{6}{*}{**PG64-22**} & \multirow{6}{*}{**PG64-22**} + & \multirow{6}{*}{**PG64-22**} + & \multirow{6}{*}{**CRM 5\%**} & \multirow{6}{*}{**10\%**} & \multi  
2. TLA enhances the ability to resist rutting by increasing the stiffness of the binder, as indicated by higher G*/sin$ values. CRM significantly improves the ability to stretch and regain its original shape. The combination of TLA and CRM results in improved resistance to rutting, especially after undergoing RTFO aging, which demonstrates increased durability.
3. The combination of TLA and CRM results in notable enhancements in the percentage of elastic recovery and decreases in Jnr values. The largest benefits, including enhanced elasticity and reduced permanent deformation, are achieved with the ideal combination of 20% TLA and 10% CRM, even after continuous post-RTFO aging.
4. The risk of fatigue cracking is increased when there is a higher TLA content, as this raises the values of G*.sin$. CRM reduces this impact by improving flexibility. To achieve a balance between stiffness and elasticity and minimize the possibility of fatigue cracking, it is recommended to keep G*.sin$ values below 5000 kPa in optimal formulations. 5. Thermal cracking, as analyzed by BBR at a temperature of \(-12\)\({}^{\circ}\)C, demonstrates that TLA results in an increase in the stiffness of the binder, hence minimizing the relaxation of stress at low temperatures. CRM enhances adaptability and resilience, mitigating the inflexibility caused by TLA-induced rigidity. Blends containing 10% CRM demonstrate superior performance by decreasing stiffness and enhancing m-values in cold climates. 6. Additional study should prioritize the investigation of the most effective techniques for TLA and CRM with the inclusion of WMAA (Warm Mix Asphalt Additives) to achieve a balance between improving performance and considering practical application factors, in order to create long-lasting and resilient asphalt pavements. The results emphasize the crucial importance of using accurate additive formulas in improving the performance of asphalt binders, which in turn contributes to the creation of sustainable and dependable infrastructure. Conceptualization, S.V. and S.-J.L. ; Methodology, S.V. ; Validation, S.-J.L. ; Formal analysis, S.V. and J.Y. ; Resources, M.-S.L. ; Data curation, S.V. ; Writing--original draft, S.V. ; Writing--review & editing, S.-J.L. ; Visualization, M.-S.L. ; Supervision, J.Y. and S.-J.L. ; Project administration, S.-J.L. ; Funding acquisition, M.-S.L. All authors have read and agreed to the published version of the manuscript. This research was supported by a grant from a government funding project (2024 National Highway Payement Management System). Not applicable. The original contributions presented in the study are included in the article, further inquiries can be directed to the corresponding author. The authors declare no conflict of interest.