4A Zeolite was synthesized using rice husk ash (RHA) as a raw material in a microwave-assisted hydrothermal synthesis. Two new procedures were proposed: procedure A, using RHA as the raw material, and procedure B, using the depolymerized RHA. Both procedures were performed using microwave-assisted hydrothermal synthesis, and neither synthesis required an aging time. Crystallinities of over 90 and 80% were reached at 100 °C after 30 min of microwave heating for procedures A and B, respectively. The obtained zeolites were used as warm mix asphalt additives, and the performance of the zeolite obtained from procedure A was better. Additionally, the zeolite obtained from procedure A and commercial silane were used separately as asphalt-aggregate adhesion promoter. An increase in the adhesion percentage from 30% of a blank sample to 94% was observed.
CITATION STYLE
Arroyo-Martínez, P. C., Sánchez-Flores, N. A., Villafuerte-Castrejón, M. E., & Vivar-Ocampo, R. (2018). Synergistic effect of 4a zeolite from rice husk ash without aging time and silane on the adhesion properties of a warm mix asphalt. Journal of the Brazilian Chemical Society, 29(1), 58–66. https://doi.org/10.21577/0103-5053.20170112
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