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http://hdl.handle.net/11422/15822| Type: | Dissertação |
| Title: | Suelos expansivos su estabilizacion con cal |
| Author(s)/Inventor(s): | Garcia, Juan Julio Jorge Menéndez |
| Advisor: | Medina, Jacques de |
| Co-advisor: | Lacerda, Willy Alvarenga |
| Abstract: | En el presente trabajo se hace un estudio de las características Geotécnicas y Estabilización con Cal de dos muestras típicas de suelos expansivos, massapé, del Recóncavo Baiano, Estado de Bahía, Brasil. Por medio de Análisis: Química, Rayos x y Termo-diferencial se llegan a conocer los minerales arcillosos componetes. Con ensayos ya normalizados (LNEC) se mide la expansiblidad, tambien se determinó la presión de expansibilidad como la contracción lineal y ensayos de consolidacion y compresión triaxial. En la estabilización de los massapés con cal se analiza la influencia en su Composición Mineralógica, en los indices de Atterberg, en la Expansibilidad, Presión de Expansibilidad, Resistencia a la Compresión no Confinada, Parámetros de Resistencia al Esfuerzo Cortante y en la Compresibilidad. Se obtuvieron resultados que relacionan al Límite de Contracción Lineal con el Indice de Plasticidad. Se determinó la cantidad adecuada de Cal para la estabilización, heciéndose una referencia sobre la posibilidad de usar el método del pH en la determinación de Cal. |
| Abstract: | A study of geotechnical characteristics and lime stabilization of two samples of typical expansive "massapés" soils from the "Recóncavo Baiano", State of Bahia, Brazil. Experimental work included mineralogical analysis of clay fraction (X-ray diffractometry and D.T.A.), chemical testing, expansibility (Protuguese LNEC test), expansion pressure, Linear shrinkage, compressibility and triaxial compression tests. The mechanisms of lime stabilization of massapés soils were analyzed through the effect of lime on clay minerals, Atterberg limits, expansion, shear strength parameters, and compressibility. Linear Shrinkage was compared to Plastic Index accordeap to existing correlations. Most adequate lime porcentage for stabilizing massapé soil samples was determined and reference made to possibilities of using the pH method for such a determination. |
| Keywords: | Suelos expansivos Expansibilidad Estabilizacion |
| Subject CNPq: | CNPQ::ENGENHARIAS::ENGENHARIA CIVIL::ESTRUTURAS::MECANICA DAS ESTRUTURAS |
| Program: | Programa de Pós-Graduação em Engenharia Civil |
| Production unit: | Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia |
| Publisher: | Universidade Federal do Rio de Janeiro |
| Issue Date: | Mar-1973 |
| Publisher country: | Brasil |
| Language: | spa |
| Right access: | Acesso Aberto |
| Appears in Collections: | Engenharia Civil |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 131903.pdf | 1.03 MB | Adobe PDF | View/Open |
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