Análisis de las propiedades físico-mecánicas y resistencia de los suelos con la incorporación de la ceniza de hoja de bambú

Abstract

The present research aimed to evaluate the physical-mechanical properties and the strength of two types of soil through the incorporation of bamboo leaf ash (BLA) in proportions of 4 %, 5 %, and 6 %. Two soils of different origin were analyzed: one extracted from the city of Ambato, classified as clayey sand (SC), and another from Santa Clara, classified as silt of medium-low plasticity (ML). The study was carried out in three phases: the characterization of the soils in their natural state, the incorporation of ash in the three indicated proportions, and the technical comparison of the results to determine the optimum proportion of addition. Tests of moisture content, particle-size analysis, Atterberg limits, standard Proctor, and CBR were performed. With the ash, the CBR of both soils increased. That of Ambato rose from 7.90 % to 15.40 % with 5 % ash, and that of Santa Clara from 2.58 % to 5.40 % with 4 %. In the Ambato soil, the behavior became non-plastic upon adding 4 % ash, whereas in the Santa Clara soil the plasticity decreased as each proportion was added. It was concluded that the optimum percentage of ash depends on the type of soil.