Evaluación del desempeño en campo de materiales tratados con CAL en tramos de prueba-Municipalidad de Cañas
Date
Authors
Badilla Vargas, Gustavo
Ávila Esquivel, Tania
Aguiar Moya, José Pablo
Loría Salazar, Luis Guillermo
Journal Title
Journal ISSN
Volume Title
Publisher
Laboratorio Nacional de Materiales y Modelos Estructurales (LanammeUCR)
Abstract
En colaboración con la Unidad Técnica Vial de la Municipalidad de Cañas, el LanammeUCR realizó pruebas en laboratorio relacionados con la resistencia a la compresión inconfinada, índice de soporte de California (CBR) de materiales estabilizados con cal. Subsecuentemente, a principio del año 2012, fue posible construir un primer tramo de prueba con materiales estabilizados, donde inicialmente se determino la densidad y humedad en sitio del material, y posteriormente se han venido realizando mediciones periódicas con el Deflectómetro de Impacto Ligero (Light Weight Deflectometer, LWD), ensayos con el Cono de Penetración Dinámico (CDP) evaluaciones visuales para determinar el desempeño y el comportamiento de estos materiales en el tiempo.
Los resultados obtenidos muestran hasta el momento mejorías en las características y propiedades de los materiales estabilizados con cal. Sin embargo, es recomendable continuar con un monitoreo del desempeño de estos materiales, a fin de valorar si las variaciones responden efectivamente a la incorporación de la cal o bien a una variación estacional (época seca-lluviosa) de los materiales.
In collaboration with the Technical Road Unit of the Municipality of Cañas, the LanammeUCR conducted laboratory tests related to the unconfined compressive strength, California Bearing Ratio (CBR) of stabilized materials with lime. Subsequently, in early 2012, it was possible to build a first test track with stabilized materials, where initially is determined the density and moisture content in site of the materials, and thereafter have been making periodic measurements with Light Weight Deflectometer (LWD), testing with Dynamic Cone Penetration (CDP), visual assessments to determine the performance and behavior of these materials over time. The results obtained so far show improvements in the characteristics and properties of materials stabilized with lime. However, it is recommended to continue monitoring the performance of these materials, in order to assess if these variations effectively respond to the addition of lime or a seasonal variation (dry-wet season) of the materials.
In collaboration with the Technical Road Unit of the Municipality of Cañas, the LanammeUCR conducted laboratory tests related to the unconfined compressive strength, California Bearing Ratio (CBR) of stabilized materials with lime. Subsequently, in early 2012, it was possible to build a first test track with stabilized materials, where initially is determined the density and moisture content in site of the materials, and thereafter have been making periodic measurements with Light Weight Deflectometer (LWD), testing with Dynamic Cone Penetration (CDP), visual assessments to determine the performance and behavior of these materials over time. The results obtained so far show improvements in the characteristics and properties of materials stabilized with lime. However, it is recommended to continue monitoring the performance of these materials, in order to assess if these variations effectively respond to the addition of lime or a seasonal variation (dry-wet season) of the materials.
Description
Keywords
PITRA, Cal, estabilización de subrasante, capacidad mecánica, Lime, Subgrade stabilization, Mechanical capacity