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Caracterização petrológica e geotécnica
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ISBN10: 620990274X
ISBN13: 9786209902741
Publisher: Edicoes Nosso Conhecimento
Published: May 12 2026
Pages: 68
Weight: 0.23
Height: 0.16 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786209902741
Publisher: Edicoes Nosso Conhecimento
Published: May 12 2026
Pages: 68
Weight: 0.23
Height: 0.16 Width: 6.00 Depth: 9.00
Language: Portuguese
O objetivo desta dissertação é estudar as caraterÃsticas petrológicas e geotécnicas de materiais endurecidos desenvolvidos sobre rochas basálticas em clima tropical úmido, onde as altitudes são menores e o relevo é em forma de planalto, visando sua utilização na construção de estradas. O estudo foi efectuado em 02 áreas de cascalho laterÃtico e 02 áreas de pedra armada. Foram realizados estudos petrológicos e geotécnicos nas amostras coletadas. A difratometria de raios X e a fluorescência de raios X foram aplicadas a esses materiais. Os estudos geotécnicos consistiram em ensaios de identificação e compactação e ensaios mecânicos da couraça. Os resultados mostram que os cascalhos laterÃticos da zona de Babongo são de cor acastanhada a avermelhada, com uma matriz areno-argilosa. A armadura é avermelhada e alveolada. Estes materiais são compostos por caulinite, hematite, magnetite, goetite, gibbsite, quartzo e anatase. Todos estes minerais predominam na couraça, com exceção do quartzo, que é mais abundante nos cascalhos laterÃticos. Os materiais laterÃticos endurecidos apresentam teores elevados de Fe2O3.
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