## 4 Conclusions  
In this study, the properties of well cuttings and mine tailings were compared with a porphyry aggregate, typically used in constructing wearing courses. Standard tests were conducted to determine the usefulness of these mine waste products in the fabrication of road surfaces. We next fabricated AC 16 Surf 35/50 S bituminous mixes with the mine wastes and the control aggregate and carried out a number of standard tests on samples of these mixes. The principle conclusions were:  
1. Both of the studied wastes have physical and mechanical properties that permit their utilization in the fabrication of wearing courses. 2. The behavior of the AC-WC mix is similar to that of the control. The test results for this aggregate were slightly better than those of the porphyry control mix at similar bitumen contents in terms of compliance with the Spanish PG-3 norms. 3. The AC-MT mix required an elevated level of bitumen binder to comply with the requirement for the void percentage in the mix and, furthermore, exhibited poor resistance to water damage. It was out of compliance with the minimum requirements for wearing courses. 4. The AC-WC and AC-MT mixes were more resistant to fatigue than the AC-PA control mix for bitumen contents of 5-5.5%, respectively. The results of the study show that, of the two wastes studied, wellbore cuttings from the La Union mining district in Spain have adequate properties to serve as coarse aggregates for use in the fabrication of AC16S wearing courses and may be considered as an alternate source given the scarcity of high-quality aggregates in this region in Spain. Additionally, the use of these aggregates would contribute to the environmental restoration of this area. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Mix**} & **Bitumen** & **Dynamic** & **Phase** & **Initial** & **Final** & **Cumulative** & **Number** \\  & **Content** & **Modulus** & **Angle** & **Dissipated** & **Dissipated** & **Dissipated** & **of Cycle** \\  & **(\%)** & **(Mpa)** & **(degrees)** & **(kJ/m3)** & **(kJ/m3)** & **(mJ/m3)** & **for Failure** \\ \hline \multirow{4}{*}{AC-PA} & 3.0 & 8716 & 19.29 & 0.122 & 0.117 & 0.741 & 5218 \\  & 3.5 & 18,144 & 16.41 & 0.04 & 0.22 & 0.313 & 2171 \\  & 4.0 & 12,981 & 19.81 & 0.3005 & 0.2325 & 55.552 & 205,311 \\  & 4.5 & 11,812 & 19.05 & 0.238 & 0.174 & 94.067 & 622,503 \\  & 5.0 & 11,724 & 22.46 & 0.2985 & 0.192 & 167.831 & 690,228 \\  & 5.5 & 11,860 & 24.62 & 0.315 & 0.212 & 193.143 & 745,548 \\ \hline \multirow{4}{*}{AC-WC} & 3.0 & - & - & - & - & - & - \\  & 3.5 & 12,138 & 17.42 & 0.229 & 0.1695 & 2.46 & 12,517 \\  & 4.0 & 13,263 & 17.61 & 0.2675 & 0.1715 & 7.3965 & 35,367 \\  & 4.5 & 11,058 & 19.16 & 0.2575 & 0.18 & 109.0255 & 492,152 \\  & 5.0 & 12,759 & 19.04 & 0.218 & 0.1605 & 172.1135 & 906,580 \\  & 5.5 & 11,323 & 19.42 & 0.24 & 0.183 & 186.352 & 889,465 \\ \hline \multirow{4}{*}{AC-MT} & 3.5 & 8573 & 14.84 & 0.1605 & 0.128 & 13.2155 & 89,888 \\  & 4.0 & 9900 & 18.29 & 0.2115 & 0.1315 & 13.6965 & 76,823 \\ \cline{1-1}  & 4.5 & 12,205 & 19.47 & 0.2555 & 0.175 & 79.2205 & 378,183 \\ \cline{1-1}  & 5.0 & 10,276 & 19.78 & 0.242 & 0.156 & 79.411 & 375,555 \\ \cline{1-1}  & 5.5 & 9685 & 18.19 & 0.225 & 0.1555 & 171.4355 & 900,233 \\ \cline{1-1}  & 6.0 & 9593 & 20.06 & 0.2335 & 0.153 & 149.8205 & 801,971 \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Results for the Fatigue resistance test. Included are the value of the dynamic modulus; the phase angle; and the initial, final, and accumulated dissipated energies of each of the mixes as a function of bitumen content. Also included is the number of cycles necessary for a 50% reduction of the original value of the dynamic modulus. **Author Contributions:** Some of the results included in this paper were obtained in the PhD thesis carried out by [PERSON] at the University of Alicante (Spain), under the supervision of [PERSON]. [PERSON] wrote the paper. [PERSON], [PERSON], [PERSON], [PERSON], and [PERSON] performed the experiments.