The nature and engineering properties of some red soils from North-East Brazil

Researchers over the years have demonstrated the need for the determination of the nature and fundamental properties of soils as an approach to the understanding of engineering behaviour. This has teen shown to be particularly true in the case of tropical soils. This thesis approaches the analyses o...

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Main Author: Malomo, Siyanbola Samuel
Other Authors: Cabrera, J. G.
Published: University of Leeds 1977
Subjects:
624
Online Access:http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.674975
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spelling ndltd-bl.uk-oai-ethos.bl.uk-6749752017-10-04T03:32:48ZThe nature and engineering properties of some red soils from North-East BrazilMalomo, Siyanbola SamuelCabrera, J. G.1977Researchers over the years have demonstrated the need for the determination of the nature and fundamental properties of soils as an approach to the understanding of engineering behaviour. This has teen shown to be particularly true in the case of tropical soils. This thesis approaches the analyses of engineering behaviour from a standpoint of the study of the intrinsic properties. The mineralogy, chemistry, structure and strength behaviour of three concretionary red soils from Paraiba State in North-East Brazil, have been determined. The mineralogy- of the red soils were determined using X-ray analysis, differential thermal analysis and thermogravimetric techniques. The microstructure of the red soils has been examined with the optical and scanning electron microscopes. The strength behaviour of compacted specimens was examined in the oedometer, direct shear and triaxial machines. A phenomenon of breakdown of soil particles under stress is isolated. The influence of the phenomenon on the strength behaviour is demonstrated. The soil elements and properties responsible for the phenomenon are discussed.624University of Leedshttp://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.674975http://etheses.whiterose.ac.uk/11228/Electronic Thesis or Dissertation
collection NDLTD
sources NDLTD
topic 624
spellingShingle 624
Malomo, Siyanbola Samuel
The nature and engineering properties of some red soils from North-East Brazil
description Researchers over the years have demonstrated the need for the determination of the nature and fundamental properties of soils as an approach to the understanding of engineering behaviour. This has teen shown to be particularly true in the case of tropical soils. This thesis approaches the analyses of engineering behaviour from a standpoint of the study of the intrinsic properties. The mineralogy, chemistry, structure and strength behaviour of three concretionary red soils from Paraiba State in North-East Brazil, have been determined. The mineralogy- of the red soils were determined using X-ray analysis, differential thermal analysis and thermogravimetric techniques. The microstructure of the red soils has been examined with the optical and scanning electron microscopes. The strength behaviour of compacted specimens was examined in the oedometer, direct shear and triaxial machines. A phenomenon of breakdown of soil particles under stress is isolated. The influence of the phenomenon on the strength behaviour is demonstrated. The soil elements and properties responsible for the phenomenon are discussed.
author2 Cabrera, J. G.
author_facet Cabrera, J. G.
Malomo, Siyanbola Samuel
author Malomo, Siyanbola Samuel
author_sort Malomo, Siyanbola Samuel
title The nature and engineering properties of some red soils from North-East Brazil
title_short The nature and engineering properties of some red soils from North-East Brazil
title_full The nature and engineering properties of some red soils from North-East Brazil
title_fullStr The nature and engineering properties of some red soils from North-East Brazil
title_full_unstemmed The nature and engineering properties of some red soils from North-East Brazil
title_sort nature and engineering properties of some red soils from north-east brazil
publisher University of Leeds
publishDate 1977
url http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.674975
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