Ingeniería Civil y Mecánica

Permanent URI for this communityhttp://repositorio.uta.edu.ec/handle/123456789/898

Browse

Filters

2021 - 20222

Settings

Subject: search.filters.subject.SUELOS FINOS

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Análisis comparativo entre la humedad gravimétrica y la humedad determinada con sensores electrónicos en suelos finos del cantón Pastaza. provincia de Pastaza
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2022-09) Villacrés Chérrez, Robert Daniel; Portilla Yandún, Favio Paúl
    Due to the fact that it is vitally important to determine the gravimetric moisture content within Civil Engineering applied to concrete, resistance of the subgrade layer on roads, determination of foundations, implementation of piles, etc.; proceed with this comparative analysis. For the beginning of this investigation, different samples of fine soils extracted from the Pastaza canton were obtained, different laboratory tests governed by regulations were applied (moisture content, granulometry, Atteberg limits, modified Proctor type B), and analyzed. data provided by electronic sensors (capacitive and resistive) that determine the natural moisture content of the soil, for subsequent correlation and interpretation of how effective and reliable these sensors are. Through the comparison made from 15 samples between the gravimetric humidity and the humidity determined with electronic sensors, it was possible to determine that the resistive sensor provides an excellent correlation coefficient, with a value of 94 percent, for a working range of 566.50 to 924.33, while the capacitive sensor provides a good correlation coefficient, with a value of 70 percent for a working range of 339.67 to 532.33 in its field readings.
  • No Thumbnail Available
    Item
    Análisis comparativo entre los valores del límite líquido obtenidos por copa de casagrande y penetrómetro de cono para suelos finos del cantón Pastaza, provincia de Pastaza
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2021-03) Pilatasig Murillo, Lisbeth Solange; Portilla Yandún, Favio Paúl
    In this research work, 30 samples of fine soils were used, which were extracted from different sectors of the city of Puyo, in order to perform a comparative analysis among liquid limit values using the Casagrande cup method (ASTM D 4318-2010) and the Cone Penetrometer method (British standard BS 1377-2: 1990). The last equipment (not available in the laboratory) was manufactured according the specifications of the mentioned standard. In addition, Atterberg limits, plasticity index, SUCS and AASHTO classifications and specific gravity of each of the samples were determined, to correlate them each other. Once the results of the tests were obtained, the data was tabulated, analyzed and interpreted. In order to verify the hypothesis raised, statistical methods were used to determine the level of correlation of the liquid limit values obtained by both methods. Thus, the hypothesis is fulfilled by presenting a good correlation coefficient of 0.81. In this way, the use of the ‘manufactured’ cone penetrometer is considered as a feasible and alternative method for obtaining liquid limit of fine soils. The correlation equation is LL cone = 1.13 LL cup - 2.10. Besides, conversion factors of 0.9179 and 0.9199 were determined to approximately calculate LLcup knowing the value of LLcone.