## 3 Results and Discussion
### Dynamic Modulus Test  
As Table 9A,B indicate, the phase angles have no significant variation between the different series. Only in the case of those series which have been subjected to freeze-thaw cycles, the variation is slightly greater. This fact may be due to the larger temperature differences between the B-Series and the other series.  
In the A-Series, very similar values were obtained for all the specimens. However, there exists a trend in which the dry series has higher modulus values and lower phase angles, due to the fact that it is more elastic than the two others.  
\begin{table}
\begin{tabular}{c c c} \hline \hline  & \multirow{2}{*}{**Series**} & \multicolumn{2}{c}{**AC16 Surf B 50/70 D**} \\ \cline{3-4}  & & \multicolumn{2}{c}{**Frequency**} \\  & & \multicolumn{2}{c}{**(Hz)**} & & \\ \cline{3-4}  & & \multicolumn{2}{c}{**0.1**} & \multicolumn{2}{c}{**0.2**} & \multicolumn{2}{c}{**0.5**} & \multicolumn{2}{c}{**1.0**} & \multicolumn{2}{c}{**2.0**} \\ \cline{3-4} \cline{6-6} \cline{10-10}  & & \multicolumn{2}{c}{**Phase**} & \multicolumn{2}{c}{**E**} & \multicolumn{2}{c}{**Phase**} & \multicolumn{2}{c}{**E**} & \multicolumn{2}{c}{**Phase**} \\  & & \multicolumn{2}{c}{**Angle**} & \multicolumn{2}{c}{**(GPa)**} & \multicolumn{2}{c}{**Angle**} \\ \cline{3-4} \cline{6-6} \cline{10-10}  & & \multicolumn{2}{c}{**(GPa)**} & \multicolumn{2}{c}{**(C)**} \\ \hline Constant temperature at 20 \({}^{\circ}\)C & A0 & 2.4 & 32.8 & 2.9 & 30.5 & 3.7 & 27.0 & 4.4 & 24.9 & 5.2 & 22.6 \\ \cline{3-4} \cline{6-6} \cline{10-10}  & A1 & 2.2 & 33.8 & 2.7 & 31.2 & 3.5 & 27.5 & 4.1 & 25.1 & 4.9 & 23.2 \\ \cline{3-4} \cline{6-6} \cline{10-10}  & A2 & 2.1 & 34.7 & 2.6 & 32.1 & 3.5 & 28.4 & 4.2 & 26.1 & 5.0 & 24.0 \\ \cline{3-4} \cline{6-6} \cline{10-10}  & B0 & 2.2 & 35.9 & 2.7 & 33.2 & 3.5 & 30.0 & 4.3 & 27.4 & 5.1 & 25.2 \\ \cline{3-4} \cline{6-6} \cline{10-10}  & B1 & 1.7 & 34.8 & 2.2 & 32.1 & 2.9 & 28.9 & 3.5 & 26.8 & 4.1 & 24.6 \\ \cline{3-4} \cline{6-6} \cline{10-10}  & Cycles & B2 & 2.0 & 33.0 & 2.5 & 30.5 & 3.3 & 27.1 & 4.0 & 25.0 & 4.7 & 23.0 \\ \cline{3-4} \cline{6-6} \cline{10-10}  & C0 & 2.4 & 31.3 & 2.9 & 28.9 & 3.7 & 26.0 & 4.4 & 23.9 & 5.2 & 21.9 \\ \cline{3-4} \cline{6-6} \cline{10 However, for the series subjected to freeze-thaw cycles, a clear tendency appears; the dry specimens (B0) have greater modulus and phase angles for all of the test frequencies. In the case of the submerged series, B2 is more elastic than B1.  
As in the case of the B-Series, for the C-Series, C0 has greater values of modulus, followed by C2 and finally by C1. However, in the case of the phase angles, the trend is different; the greatest angle is C2 and the lowest is C0. For the C-Series, the values of the modulus are greater, and the values of phase angles are lower compared with the A-Series and B-Series, and this indicates that the specimens have suffered a stiffening process.  
In general, for all of the series and frequencies tested, the modulus values are greater for the dry series. This was expected due to the fact that submerging specimens in water is more harmful for the mixture than keeping them dry during any temperature interaction. Likewise, for all of the temperature interactions, there exists a trend which indicates that the series that are submerged in salt water have greater values of modulus than their corresponding pair submerged in distilled water, even more for the series subjected to freeze-thaw cycles. This trend supports the idea that the largest damage to the mixture that is submerged in water is the amount of time that it remains in frozen water, and the specimens that are submerged in salt water remain in frozen water for a shorter period of time.