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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Estudio experimental y numérico del comportamiento mecánico de una arcilla mejorada con métodos tradicionales y ceniza de madera / Experimental and numerical study of the mechanical behavior of a clay improved with traditional methods and biomass ash

Quispe Iporra, Renato Abraham 06 September 2019 (has links)
Esta investigación, estudia el efecto que produce el cemento, cal, geomalla y principalmente la ceniza de madera como componente mejorador de un suelo arcilloso, con el fin de evaluar las deformaciones verticales en la subrasante de un pavimento convencional a los 7 y 21 días de cura. La ceniza de madera es un residuo que proviene de la quema de materiales orgánicos en los hornos de las ladrilleras artesanales presentes en todo el Perú, los cuales el carbón, aserrín y madera, son los más utilizados. La disposición de éste material, genera problemas ambientales. Se realizaron ensayos de laboratorio para caracterizar la ceniza de madera, la mezcla de arcilla-ceniza, la mezcla arcilla-cemento, arcilla-cal y el refuerzo con la geomalla para luego modelarlo con la ayuda de la herramienta computacional Plaxis 8.2, software de elementos finitos, y obtener las deformaciones verticales. Se comprueba que con la geomalla biaxial se obtuvieron las menores deformaciones seguido por la mezcla arcilla-cemento. Con respecto a la arcilla-ceniza (21 días) se obtuvo un comportamiento similar a la mezcla de arcilla-cal (7días) siendo este resultado muy significativo ya que la ceniza al ser un material residuo de las ladrilleras puede llegar a un comportamiento mecánico tan igual como la cal. / This research studies the effect produced by cement, lime, geogrid and mainly wood ash as an improving component of a clayey soil, in order to evaluate the vertical deformations in the subgrade of a conventional pavement at 7 and 21 days after cure. Wood ash is a residue that comes from the burning of organic materials in the kilns of artisanal brickmakers present throughout Peru, which coal, sawdust and wood, are the most used. The disposition of this material generates environmental problems. Laboratory tests were carried out to characterize the wood ash, the clay-ash mixture, the clay-cement mixture, the clay-lime and the reinforcement with the geogrid, and then model it with the help of the computer tool Plaxis 8.2, elements software finite, and get the vertical deformations. It is verified that with the biaxial geogrid the smallest deformations were obtained followed by the clay-cement mixture. With respect to ash-clay (21 days) a behavior similar to the clay-lime mixture (7 days) was obtained, this result being very significant since the ash being a material residue of the brickworks can reach such a mechanical behavior just like lime. / Tesis

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