DETERMINATION OF THE DIFFERENCES IN RESULTS OF TWO REALIZATION PROCEDURES OF THE STANDARD PROCTOR TEST
Compaction is a soil densification process in which its resistance and load capacity are increased. The degree compaction of soils is evaluated through two parameters: its maximum dry specific weight (γdmax) and its optimal humidity (Wopt), these parameters can be determined thought many l...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | México |
| Institución: | UNIVERSIDAD AUTÓNOMA DE CHIAPAS |
| Repositorio: | Revista Espacio I+D Innovación más Desarrollo |
| Idioma: | español inglés |
| OAI Identifier: | oai:ojs.espacioimasd.unach.mx:article/236 |
| Acceso en línea: | https://www.espacioimasd.unach.mx/index.php/Inicio/article/view/236 |
| Access Level: | acceso abierto |
| Palabra clave: | Proctor Estándar Peso específico seco Contenido de agua Recompactación Standard Proctor dry specific weight moisture content re-compaction |
| Sumario: | Compaction is a soil densification process in which its resistance and load capacity are increased. The degree compaction of soils is evaluated through two parameters: its maximum dry specific weight (γdmax) and its optimal humidity (Wopt), these parameters can be determined thought many laboratory techniques. Globally, one of the most used is the Standard Proctor test. The standard process of this test established the definition of one compaction curve using values from a single soil sample after being compacted several times during the procedure. However, in the usual implementation of this test has emerged a variation of the process, to define the compaction curve using more than one sample soil. The goal of this investigation is to provide information about the discordance of the resulting values from the two different techniques of the Standard Proctor test. To accomplished this, over a fist group of samples, it was determined the optimal compaction parameter of two different soil types from the Mexican state of Tabasco after following the standardized process of the Standard Proctor test. These first results served as control values. Subsequently, the second group of samples of the same soil types from the first procedure was tested again with the Standard Proctor test, but now, over several soil samples instead of one (every soil sample was compacted once). All the tests were carried out in triplicate and the results were adjusted using a polynomial line. Comparing the results from the second group of samples against the control values, the second technique caused a 1% decrease in the maximum dry specific gravities, and optimal humidity increase close to 5%. These differences are caused by the process of preparing the soil samples in the Proctor test variant. |
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