Ingeniería Civil y Mecánica
Permanent URI for this communityhttp://repositorio.uta.edu.ec/handle/123456789/898
Browse
3 results
Search Results
Item Diseño de adoquines con mezcla asfáltica en frío utilizando agregados reciclados y no reciclados(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2020) Ushiña Toapanta, Jessica Magaly; Portilla Yandún, Favio PaúlIn this study about cold asphalt mixtures we determined the optimal percentage of asphalt emulsion analyzing the by Marshall stability test, also the performance to the compressive strength and finally to determinate the costs of manufacture of cobblestones with recycled and unrecycled aggregates for light and low traffic applications. In order to determine the parameters mentioned in the previous paragraph, it was necessary to test several test tube finding an optimal percentage of 10.5 percent for mixtures with recycled materials and 10.3 percent for non-recycled materials and stability of 5250 pounds - 4984 pounds respectively, for the test, 30 cobblestones were made as experiments, corresponding to two types of mixtures with three thicknesses of 6 cm, 7 cm and 8 cm, in order to choose the thickness that the best resistance has for both recycled and unrecycled materials. The maximum strengths obtained in the experiments were 38.84 Kg / cm2 for recycled materials and 37.66 Kg / cm2 for non-recycled ones. Due to the result of the strengths, the decision was taken to work with the experiment made with recycled materials of 6cm thick. In addition, an analysis of the final cost of the product was analyzed, giving as a result in a cost of USD 0.24 for cobblestones with recycled materials and USD0.39 for nonrecycled ones, which means that, the selected cobblestone is economically much lower than a traditional cobblestone which costs USD 0.35.Item Diseño de adoquines con mezclas asfálticas en caliente utilizando agregados reciclados y no reciclados(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2020) Aysabucha Yucailla, Katherin Liliana; Portilla Yandún, Favio PaúlTo make pavers with hot asphalt mixtures with recycled aggregates, samples of aggregates from Dr. Julio Enrique Paredes Street were taken, which were obtained through a milling process, and then a cracking process was carried out to perform the tests. The percentage of residual asphalt of the recycled aggregates was determined by the asphalt extraction test in which a percentage of 5.8% of asphalt cement was determined, then a granulometric analysis was performed to determine the particle size, reaching a particle size. Maximum size of half an inch. In order to make the cobblestones with unrecycled aggregates, crushed aggregates of the Los Pinos Mine were acquired, and it was carried out with a granulometry of maximum size of half an inch. The Marshall test was carried out to determine the optimum percentage of asphalt cement needed by our hot mixes and in this way we proceeded to manufacture pavers of 8, 7 and 6 cm. Cobblestones with recycled asphalt mixtures were tested 2 days after they were made, and concrete pavers were tested after 28 days to reach maximum strength. An articulated pavement was designed with pavers of hot asphalt mixtures with recycled aggregates, knowing the values of the thicknesses of each layer that forms an articulated pavement the cost analysis of articulated pavements with pavers of hot asphalt mixtures was performed, which He noticed a low value with respect to simple concrete pavers.Item Análisis comparativo de la resistencia a compresión entre un adoquín convencional y adoquines preparados con diferentes fibras: sintética (polipropileno), orgánica (estopa de coco), inorgánica (vidrio)(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Civil, 2016) Martínez Mayancela, Joffre René; Ureña Aguirre, Maritza Elizabeth