Modulus-based quality management of compacted layers has been considered by a number of highway agencies. Even though simple in concept, the paradigm shift from density to modulus for quality acceptance has generated some technical and institutional challenges. One of these complications is that for a given density, the modulus can vastly vary depending on the Vita Lourdes Pacheco was born on June 30, in Cd. Juarez, Chihuahua, Mexico. She is the youngest child of two of Enrique Pacheco Aguirre and Maria Altagracia Fernandez Aguirre. She graduated from ITESM Campus Cd. Juarez High School in Cd. Juarez, Chihuahua, Mexico in Spring 2002 and entered the University of Texas at El Paso in Fall 2003 after an exchange program for Rotary International Club in Sao Paulo, Brazil. While pursuing her Bachelors of Science in Civil Engineering, she worked for Federal Highway Administration (FHWA) in the summer of 2006. In the Spring of 2009 she entered the graduate school at the University of Texas at El Paso. While pursuing her graduate degree she worked as a Research Assistant at the Center for Transportation Infrastructure Systems (CTIS) and as a Teaching Assistant for the undergraduate Basic Engineering Mechanics I course and Geotechnical Engineering course. She was the recipient of the Eisenhower Transportation Fellowship in the 2007-2010 academic years.

The construction of earth walls can be a significant response to prevent the next landslides from reaching the road and avoid accidents. Therefore, a material of the same slope was used and reinforced with mixtures of lime and cement, with this same reinforced material a mechanically stabilized hypothetical earth wall (MSE) was developed. An analysis of the original slope was developed to check if there was a possible failure through its safety factor. Then, a hypothetical wall was developed with a floor reinforced with mixtures, in order to assess its overall safety factor and its maximum landslides. According to the results, in principle it was determined that the dosage M-3 / C-4-4 improves in a range of 30% to 37% the friction angle. In addition, it was found that a reinforced wall, that is to say with Lime and cement additions, presents a better behaviour. In its effect, its displacements are about 8 mm and have a global factor of 1.23.

At present, worrying quantities of tires are discarded due to the growth in demand for vehicles in the world, which has a direct impact on the deterioration of the environment since they normally go to landfills. Based on the background found, the use of this material for geotechnical applications can help reduce the pollution they generate and improve the physical and mechanical properties of soils. Therefore, this research seeks to evaluate a greater shear strength and capacity of support to the penetration of the clayey soil by means of the addition of 1.5%, 2.5% and 3.5% of rubber powder recycled. For this, the Atterberg limits analysis, the modified proctor compaction test, shear box and CBR were performed. For the shear box test, the results reflect that the cohesion of the mixture increased and the angle of internal friction decreased with respect to the natural soil, resulting in the sum in an increase of shear strength. On the other hand, the percentage of CBR increased, this means that the rubber helped the soil to be more rigid and have a greater resistance to penetration. These mixtures could be used in different projects within geotechnical engineering, as it presents an improvement in shear strength and an acceptable support index value (CBR).