Browsing by Author "Buenaño Mariño, Cristina del Pilar"

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    Determinación de un porcentaje de resina de poliéster en un concreto polimérico para alcanzar una alta resistencia a compresión
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Civil, 2018) Buenaño Mariño, Cristina del Pilar; López Arboleda, Alex Gustavo
    The needs in construction are numerous in terms of concrete, hence the need to propose new materials to solve these needs. The present work consists of finding a percentage of polyester resin in the polymeric concrete that reaches a high resistance to compression. To elaborate this material, there were used aggregates from "Las Viñas" mine of the Alvarado construction company, located in Ambato. This stone material complied with the NTE INEN granulometry limits and the apparent and real densities were verified in a materials testing laboratory. With the dosage by the the Optimum Density Method for a traditional concrete, the cement and water part was replaced by polyester resin and mek peroxide (C8H18O6). In this way we get the dosage for the polymer concrete with different percentages of polyester resin. During the elaboration, an increment of workability of concrete was observed when increasing the percentage of polyester resin in the mixture. Finally, the specimens with different percentages of polyester resin were subjected to a compression test at 21 and 28 days. The results obtained allowed to deduce that with 45% of polyester resin not even reached the lower limit of resistance to compression expected at 21 and 28 days, while 50% doubles the value of resistance and exceeds the design resistance. The best results are obtained with 55%, because once again it doubles the value obtained with 45% and a high resistance to compression is reached. These favorable results will allow to open a field to obtain a material of high resistance to compression with polyester resin, whose physical and mechanical properties are much higher than traditional concrete.