## 3 Results and Discussion  
### Characterization of the Rolled Powder (RP)  
The results showed that the major constituent of the RP is SiO\({}_{2}\), at approximately 92.5%. The distribution of the particle size of the RP reveals a granulometry about four times (4\(\times\)) higher than PC. Due to the absence of amorphous characteristics as measured by the diffractogram, it can be inferred that RP does not present high reactivity when compared to other siliceous materials such as rice husk ash, fly ash, and other biomasses. Table 3 shows that RP has three crystalline phases (quartz, tridymite, and cristobalite), as the cristobalite phases are polymorphic. However, tridymite and cristobalite have a fraction with poor crystallinity, as quantified by the method of [PERSON] [47; 48; 49; 50]. Furthermore, the quartz phase represents 95% of the sample. The cristobalite phase is 1.5%, cristobalite-_low_ at 1.9% and a trydimite-_low_ at 1.5%. In the literature [11; 15], the agate residue in sand granulometry produces AAR. However, [PERSON] [11] emphasizes that RP reduces the occurrence of AAR by 0.19%. AFCB because it contains empty spaces in its interior, according to [PERSON] et al. [51], can berth expander gel that causes internal tensions and leads to the loss of mechanical resistance. Thus, it is believed that using RP in AFCB may be an interesting possibility, since this may mitigate possible problems related to the use of residues. SEM was used for the morphological analysis of the residue, and this shows that particles have different sizes as can be seen in Figure 2. These variations may have been generated by the friction \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Fase**} & **Crystaline** & \multirow{2}{*}{**Lattice Parameters Refined**} & \multicolumn{2}{c}{**Quantification**} \\ \cline{3-4}  & **System** & & **\% Mass** & **\% Volumetric** \\ \hline Quartzo (SiO\({}_{2}\)) & Trigonal & a = 4.9113 \(\pm\) 1.58\(\cdot\)10\({}^{-4}\) Å & 95.09 \(\pm\) 0.09 & 89.03 \(\pm\) 0.09 \\ \hline Cristobalite-low (SiO\({}_{2}\)) & Tetragonal & a = 5.026 \(\pm\) 4.73\(\cdot\)10\({}^{-4}\) Å & 1.86 \(\pm\) 0.12 & 2 \(\pm\) 0.12 \\  & & c = 6.8446 \(\pm\) 2\(\cdot\)10\({}^{-4}\) Å & 1.86 \(\pm\) 0.12 & 2 \(\pm\) 0.12 \\ \hline \multirow{4}{*}{Tridimite-low (SiO\({}_{2}\))} & & a = 5.030 \(\pm\) 0.013 Å & & \\  & & b = 9.082 \(\pm\) 0.06 Å & & \\  & & c = 8.306 \(\pm\) 0.05 Å & 1.54 \(\pm\) 0.17 & 7.25 \(\pm\) 0.17 \\  & & \(\alpha\) = 91.11 \(\pm\) 0.92\({}^{\circ}\) & & \\  & & \(\beta\) = 93.79 \(\pm\) 0.48\({}^{\circ}\) & & \\  & & \(\gamma\) = 91.47 \(\pm\) 0.81\({}^{\circ}\) & & \\ \hline Cristobalite (SiO\({}_{2}\)) & Cubic & a = 7.1436 \(\pm\) 0.0057 Å & 1.5 \(\pm\) 0.26 & 1.7 \(\pm\) 0.26 \\ \hline \multicolumn{4}{c}{Sum} & 99.99\% & 99.98\% \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Phase quantification, lattice parameters and crystalline system for Rolled Powder (RP). Figures 4 and 5 show the distribution of the air voids and form of the products of hydration (Figure 5: a-b-c), respectively, in the mortar aerated by foam after 28 days of curing. The cavities formed by the bubbles are distributed throughout the area evaluated and are of uniform size, with the maximum diameter being approximately 0.5 mm. The distribution of the pores and the size of the cavity are favored by the low granulometry of the aggregate, thus generating smaller densities. Another interesting aspect is that within the macropores there was a growth of crystals (Figure 5), which is also reported by [PERSON] and [PERSON] [PERSON] and [PERSON] (2017, 2018  
The distribution of the pores, the mean diameter, and the area occupied by the air-voids were evaluated using image analysis, namely ImageJ software following [PERSON] et al. [58]. The results indicate that about 30% of the area is filled with air-voids, the dimensions of which were 0.05 to 0.5 mm, these being defined as macropores by [PERSON] et al. [59].