## 3 Results and Discussion
### Reduction Factor of the LCP woven Geotextile
\begin{table}
\begin{tabular}{c c c} \hline \hline \multirow{2}{*}{**LCP Woven Geotextile**} & \multicolumn{2}{c}{**Creep**} \\ \cline{2-3}  & **Before** & **After** \\ \hline Strength retention (kN/m\({}^{2}\)) & 192.94 & 121.35 (62.9\%) \\ RF\({}_{CR}\) & & 1.59 & \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Strength retention and reduction factor for creep deformation of LCP woven geotextile. effect on the tensile strength from exposure to sunlight in the construction environment was thought to be small but not significant. Here, the reduction factor of 1.08 meant that the LCP woven geotextile may be applicable within the range of 92.6% of the design strength when applied in the field. Short-term accelerated tests were performed under exposure to soil pH (acid and alkalinity), temperature, and time, and the strength retention rate and reduction factor for chemical degradation were measured and analyzed through a strength comparison before and after use. The results are shown in Table 6; the strength retention rate was 98.0% in acid and 93.5% in base. The reduction factor was 1.02 in acid and 1.07 in base. This was thought to be due to the fact that LCP is relatively stable to most acids, alkalis, and solvents, as the decrease in tensile strength occurred due to exposure to acids and alkalis, and the effect was insignificant or not very effective. Here, the reduction coefficients of 1.02 and 1.07 meant that the LCP woven geotextile may be applicable within a range of 98.0% and 93.5% of the design strength when applied in the field. A short-term accelerated test was performed under exposure to microorganisms or bacteria in the soil, and the strength retention rate and reduction factor for biological degradation were measured and analyzed through a strength comparison before and after use. The results are shown in Table 7; the strength retention rate was 94.3%, and the reduction factor was 1.06. This was due to the decrease in tensile strength due to the exposure to microorganisms or bacteria, and it was thought that the effect on the tensile strength was not significant when exposed to microorganisms or bacteria in the soil. Here, the reduction factor of 1.06 meant that the LCP woven geotextile may be applicable within the range of 94.3% of the design strength when applied in the field. \begin{table}
\begin{tabular}{c c c c c} \hline \hline  & \multicolumn{4}{c}{**Chemical Degradation**} \\ \cline{2-5}
**LCP Woven Geotextile** & \multicolumn{2}{c}{**Acid**} & \multicolumn{2}{c}{**Base**} \\ \cline{2-5}  & **Before** & **After** & **Before** & **After** \\ \hline Strength retention & 192.94 & 189.16 (98.0\%) & 192.94 & 180.32 (93.5\%) \\ \(\text{RF}_{CD}\) & & 1.02 & & 1.07 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Strength retention and reduction factor for chemical degradation of LCP woven geotextile. \begin{table}
\begin{tabular}{c c c} \hline \hline  & \multicolumn{2}{c}{**Biological Degradation**} \\ \cline{2-3}
**LCP Woven Geotextile** & **Before** & **After** \\ \hline Strength retention (\(\text{kN}/\text{m}^{2}\)) & 192.94 & 182.02 (94.3\%) \\ \(\text{RF}_{BD}\) & & 1.06 \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Strength retention and reduction factor for biological degradation of LCP woven geotextile. \begin{table}
\begin{tabular}{c c c} \hline \hline  & \multicolumn{2}{c}{**UV Resistance**} \\ \cline{2-3}
**LCP Woven Geotextile** & **Before** & **After** \\ \hline Strength retention (\(\text{kN}/\text{m}^{2}\)) & 192.94 & 178.65 (92.6\%) \\ \(\text{RF}_{UV}\) & & 1.08 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Strength retention and reduction factor for UV resistance of LCP woven geotextile. (6) Total reduction factor  
In order to obtain the long-term performance of the LCP woven geotextile, the total reduction factor (IIRF) was determined by applying the reduction factor for creep deformation, UV resistance, and chemical and biological degradation from Equation (5), which determined the long-term permissible strength.