Study of the Stabilization/Solidification of Oily Sludge of Oil through of Scanning Electron Microscopy and Diffraction of X-Rays

Abstract

The objective of this study was to evaluate materials stabilized by solidification after incorporation of oily sludge of oil in a ordinary Portland cement matrix through analysis tests Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD). The research was divided into two main stages. In the first step the preparation of the specimens composed of cement, sand and oily sludge of oil and the second step was to evaluate the stabilization/solidification material via SEM and XRD analysis. The results of the XRD identified the characteristic peaks of portlandite, calcium silicate and ettringite. The same occurred with the SEM that detected the presence of the main products of the reactions of cement hydration. The results showed that the oily sludge of oil did not interfere with cement hydration reactions.

Microstructural evaluation of composites incorporated with industrial waste

“…In Figure 4, it is observed a high amount of Calcium Silicate being represented by sponge-like agglomerates, the latter conferring mechanical strength to cementitious matrices and the presence of Ettringite represented by needle-like crystals. It is possible to observe that the needles of Ettringite are clearer in the matrix cured at 7 days (Dias et al 2015) this is because Etringite is formed in large amounts in the first seven days of hydration and gradually absent after 28 days.…”