Ingeniería Civil y Mecánica

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Start date: 2023Subject: search.filters.subject.DOSIFICACIÓN

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    Determinación de la dosificación para la elaboración de adoquines en la planta de adoquines de la parroquia San Isidro de Patulu, cantón Guano, utilizando los materiales de las minas del sector, incluyendo un manual de procedimientos.
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil., 2025-02) Barrionuevo Brito, Anthony Javier; Peñafiel Valla, Lourdes Gabriela
    The utilization of local materials is presented as an efficient alternative, facilitating the production of high-quality pavers that play an essential role in urban development. This strategy contributes to establishing a technical foundation, enabling the development of solutions in the construction sector, fostering economic growth, and enhancing the social well-being of the communities involved. The research was conducted using an experimental approach, evaluating the physical and mechanical properties of the materials based on the INEN 872 standard. In this phase, key characteristics such as granulometry and density were analyzed to ensure their compatibility in mixtures. Subsequently, a procedural manual was developed, detailing guidelines for executing the activities. Next, the mix design for the paver production was carried out based on the ACI method, where test cylinders were subjected to compression tests, yielding results of 60.77 MPa and 60.99 MPa at 28 days, indicating that the mix design is optimal. Following this, the paver mix design with a tensile strength of 30 MPa was developed, and as part of quality control, tests were performed according to the NTE INEN 3040 standard, yielding satisfactory results. Finally, it was concluded that the mix design was successful, as the average results for the indirect tensile strength of the pavers reached 3.604 MPa, demonstrating that this experimental work promotes an efficient construction model.
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    Evaluación del comportamiento a flexión de vigas de hormigón simple, preparado a partir de materiales reciclados
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2023-09) Sánchez Freire, Joseph Henry; Peñafiel Valla, Lourdes Gabriela
    Concrete is a material in high demand in construction, due to its excellent compressive strength and easy workability it is used on a large scale nationally and internationally and concrete rubble is produced which many times is not reused and Its main destination is a dump or ravines, which causes environmental damage. The main objective of this research is to analyze the flexural behavior of beams made from recycled concrete and to carry out an adequate dosage, previous laboratory tests such as granulometry, densities and moisture content have been carried out. A total of 36 beams have been made with different dosages of 10, 15, 30, 60 and 100 percent with a resistance of 240 kg/cm2 to obtain experimental results and compare them with base beams made from coarse natural aggregate, the beams After being cured at 7 and 28 days of age, they were flexurally tested and the loads (KN), modulus of rupture (MPa) and deflections (mm) presented by each of the beams were recorded. From the results obtained, the flexural resistance of each of the beams varies according to the percentage of aggregates that constitute them, showing that the modulus of rupture at 28 days of age, the VF_30 and VF_100 beams support greater flexural loads by 5.09 and 1.77 percent compared to base concrete VF_0 beams without recycled aggregate.
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    Análisis comparativo del hormigón simple y el hormigón con fibras de caucho reciclado de neumáticos como reemplazo parcial del agregado fino y su influencia en la resistencia a la compresión
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2023-03) León Merino, Alexis Sebastián; Ureña Aguirre, Maritza Elizabeth
    For many years the disposal of tires has been an issue that affects the world because it is one of the most difficult materials to degrade, so it is harmful to the environment. This project focuses on the use of concrete made with recycled rubber fibers as a contribution to the environment, where tests were carried out to demonstrate the increase in compressive strength. It began by subjecting the simple concrete and those containing the replacement of 5 and 10 percent of recycled rubber particles with a size of 2 to 4mm, to compression tests at the age of 7, 14, 21 and 28 days, where the resistance of the simple concrete reached a maximum value of 216.71 kg/cm2, while the group with replacement of 5 and 10 percent of rubber only achieved a resistance of 164.71 and 153.87 kg/cm2 respectively, with the group with replacement of 5 and 10 percent of rubber only achieved a resistance of 164.71 and 153.87 kg/cm2 respectively. 87 kg/cm2 respectively, thus reflecting that it did not have a higher resistance than the simple concrete, for which an extra experimental group was added that conserved the dosage of the simple concrete and added rubber fibers at 5 and 10 percent plus a plasticizing additive at 2 percent, where values of 227.16 kg/cm2 at 5 percent and 220.62 kg/cm2 at 10 percent were obtained, thus demonstrating a significant increase in resistance.