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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

Evaluación de desempeño de mezclas asfálticas en caliente diseñadas por la metodología Marshall con el ensayo de la rueda cargada de Hamburgo para el proyecto de rehabilitación de la carretera DV Imperial-Pampas

De La Cruz Bazán, Paulino, Porras Zavala, Mario José January 2015 (has links)
El objetivo del presente trabajo de investigación consiste en evaluar la calidad de la carpeta asfáltica mediante el análisis de la rueda cargada de Hamburgo, usando el Método Marshall en la rehabilitación de la carretera de Imperial Pampas. El método de la investigación es de tipo cualitativo-cuantitativo. El problema consistió en determinar de qué manera el análisis de la rueda cargada de Hamburgo permite comprobar si la carpeta asfáltica usada en la rehabilitación de la carretera Imperial Pampas cumple con los estándares de calidad de acuerdo al método de Marshall. La hipótesis planteada es que la Rueda de Hamburgo permite comprobar que la carpeta asfáltica usada en la rehabilitación de la carretera Imperial pampas cumple con los estándares de calidad de acuerdo al método Marshall. Llegando a la conclusión que el método Marshall mostró buen performance en condiciones extremas, por cuanto se obtuvo en el umbral de aprobación. The research objective of this study is to assess the quality of the asphalt by analyzing the wheel loaded Hamburg using the Marshall method in the rehabilitation of the road from Imperial Pampas. The research method is qualitative - quantitative The problem was to determine how the analysis of Hamburg loaded wheel lets you check whether the asphalt used in road rehabilitation Imperial Pampas meets quality standards according to the Marshall method. The hypothesis is that the Hamburg Wheel lets you check that the asphalt used in road rehabilitation Imperial pampas meet the quality standards according to the Marshall method. I came to the conclusion that the Marshall method showed good performance in extreme conditions was obtained because the threshold of approval.
2

Theoretical design proposal for simulated hot asphalt mixture at a temperature below zero degrees Celsius

Chávez, H., Chávez, H., Pezo, A., Llerena, G., Torres, V. 28 February 2020 (has links)
In the world there are adverse climates, climates that hinder the good construction and paving of roads, generating insecurity among the locals and visitors. This over time affects the economy of a country, as a road boosts tourism, transport and commerce. Therefore, a mixture was designed to mitigate a problem in the placement of hot asphalt mixture at temperatures below zero degrees Celsius. That is, a conventional mix design was proposed, but with different types of filler (lime, Portland cement type I and silica) tested with the Marshall and Lottman method which are governed according to the EG-2013 standards [1] and parameters established in the Asphalt Institute [2]. To find the optimum, it was tested with 5.0%, 5.5% 6.0% and 6.5% asphalt cement. Then with the results obtained a comparative analysis was performed. Finally, specimens without any additives were made, the specimens once prepared at 140°C were subjected to freezing, resulting in the three types of filler, that the hot asphalt mixture with incorporation of Portland cement type I to a 5, 90% of asphalt cement is the optimum since, subject to extreme temperatures below 0°C they comply with the parameters required in the standards.

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