Influência de parâmetros metodológicos e experimentais nos blocos de terra compactados estabilizados pela ativação alcalina do metacaulim

Abstract

The Compacted Earth Blocks stabilization by alkaline activation still a very new area, however it is already able to perceive a growing number of researches involving the theme. Most researches involving this type of stabilization points to excellent resistance values, however, some research also shows some difficulty in the kneading and molding process. Thus, this work aims to carry out the study of some parameters that influence the mixing of materials, the molding of the blocks and later their mechanical compressive strength. The parameters studied were: methodology for adding metakaolin and sodium silicate, metakaolin percentage and curing time in an oven. Furthermore, during the methodological development, it was also possible to make some observations regarding the ideal amount of water needed to mold the blocks. Finally, the results obtained were quite satisfactory, obtaining mixtures with good workability and blocks mostly capable of being applied in sealing masonry, and also conclusions that can assist in the development of a consistent method to make compacted earth blocks stabilized by alkaline activation.