## 2 Summary of the Existing Test Results
### Meta1 Database of Prior Knowledge  
In this section, drawing on 22 references [25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46], the Meta1 database is established, comprising 436 samples of CFRP-to-concrete interfacial ultimate loads under hygrothermal or salt attack after filtering out invalid experimental data and averaging across replicate groups, as shown in Tables 1 and 2. The data serial numbers from 1 to 19 in Table 1 represent the input factors of the neural network, while the data in Table 2 serve as the output factors of the neural network. Moreover, to eliminate the influence of different experimental conditions on the parameter values, a normalization method is adopted to process the factor values and ultimate loads. This study employs feature scaling normalization. It involves utilizing the feature values of each parameter as standard values against which the different sample values of the parameter are measured. The normalized data are derived by dividing the sample values by their corresponding standard values. The data in the Meta1 database are tailored to similar target tasks. Predominantly, these samples were acquired through double shear tests, single shear tests, and a number of four-point bending tests on CFRP-reinforced concrete specimens. Because various experimental studies present different parameters, necessitating the establishment of unified standards to streamline the marking process, the fundamental material properties of CFRP (serial numbers from 14 to 18) are ascertained via the pertinent literature [25; 35] and technical specifications [48] (GB/T 21490-2008). The density of the CFRP laminate stands at \(\rho~{}=~{}1.8\times 10^{6}\) g/m\({}^{3}\), while its thickness is set at \(\delta~{}=~{}0.167\) mm. Equations (1)-(3), respec \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Serial Number and** & **Parameter Range** & **1** & **2** & \(\ldots\) & **436** \\
**Factors** & & & & & \\ \hline
1—Chloride Concentration (\%) & 0–55.00 & 0 & 0 & \(\ldots\) & 55.000 \\
2—Sulfate Concentration (\%) & 0–88.00 & 0 & 0 & \(\ldots\) & 7.68 \\
3—Cycles (d) & 0–1400.00 & 0 & 14.00 & \(\ldots\) & 150.00 \\
4—Soaking Time (h) & 0–48.00 & 0 & 0 & \(\ldots\) & 24.00 \\
5—Drying Time (h) & 0–16.00 & 0 & 0 & \(\ldots\) & 0 \\
6—Heating Time (h) & 0–14.00 & 0 & 0 & \(\ldots\) & 0 \\
7—Temperature (“C) & 0–60.00 & 24.00 & 5.00 & \(\ldots\) & 0 \\
8—Humidity (\%) & 50.00–100.00 & 77.00 & 95.00 & \(\ldots\) & 100.00 \\
9—Soaking Temperature (“C) & 0–40.00 & 0 & 0 & \(\ldots\) & 25.00 \\
10—Drying Temperature (“C) & 0–25.00 & 0 & 0 & \(\ldots\) & 0 \\
11—Heating Temperature (“C) & 0–65.00 & 0 & 0 & \(\ldots\) & 0 \\
12—Paste Length (mm) & 60.00–720.00 & 520.00 & 520.00 & \(\ldots\) & 300.00 \\
13—Paste Layers & 1.00–2.00 & 1.00 & 1.00 & \(\ldots\) & 1.00 \\
14—CFRP Tensile Strength (MPa) & 1560.00–4750.00 & 4750.00 & 4750.00 & \(\ldots\) & 3355.00 \\
15—CFRP Elastic Modulus (GPa) & 104.00–306.700 & 230.00 & 230.00 & \(\ldots\) & 230.10 \\
16—CFRP Elongation (\%) & 1.1760–3.050 & 1.500 & 1.500 & \(\ldots\) & 1.600 \\
17—CFRP Surface Density (g/m\({}^{2}\)) & 216.00–3600.00 & 404.00 & 404.00 & \(\ldots\) & 300.60 \\
18—CFRP Dimensions (mm\({}^{3}\)) & 360.00–20,000.00 & 5980.00 & 5980.00 & \(\ldots\) & 7515.00 \\
19—Concrete Strength (MPa) & 21.00–71.60 & 35.40 & 35.40 & \(\ldots\) & 63.60 \\ \hline \hline \end{tabular} This table is for illustration purposes only, with more data presented in Table S1.  
\end{table} 
Table 2: Data Y in the Meta1 database. tively, compute the elongation, tensile strength, and surface density of the CFRP laminate, with Equation (4) determining the ultimate load at interface failure. The specifications of the CFRP laminate used in the test (serial numbers from 12 to 13) are obtained according to the technical specification [49]. The experimental conditions comprise two categories: environmental temperature and humidity treatments and wetting-drying cycles. Serial numbers 7 to 8 denote the temperature and humidity of the former.