Comparative Appraisal of Tunisian and Portuguese Smectitic Clays as Raw Materials for the Production of Light Weight Aggregates(Clays in Industry,Proceedings of the 13^<th> International Clay Conference)
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概要
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Tunisian and Portuguese smectitic clays are under study to assess their potentialities to be used as natural raw materials for the production of Light Weight Aggregates which have an important function in civil construction work. Several smectitic clay deposits from the meridional Atlas domain (Tunisia) and from the Meso-Cenozoic Lusitanian Basin (Portugal) were studied for this purpose. Characterization of these clays includes mineralogical and chemical analysis, dosage of total organic carbon, grain size analysis and thermal analysis. Small balls (1 to 1.5cm in diameter) were prepared with these clays in the plastic state and were submitted to the firing temperatures ranging from 1050 up to 1180℃, during time intervals ranging from 5 to 15 min. Special additives like motor oil, phosphate residues and sand, in different proportions, were mixed with the smectitic clays in order to obtain better expansion. The following properties were determined on the bloated balls: apparent density, mechanical resistance corresponding to the rupture under compression point and water absorption. The bloated balls showed appreciable properties. Each additive has positive effects but in dependent on the original clay material. The results were comparatively appraised not only between Tunisian and Portuguese clays but also with commercial products.
- 日本粘土学会の論文
著者
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Gomes Celso
Research Centre "minerals Industrials E Argilas" (fct) Univ.
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FAKHFAKH EMNA
Laboratoire de Georessources INRST
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BARROS OLGA
Research centre "Minerals Industrials e Argilas" (FCT), Univ.
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MEDHIOUB MOUNIR
Departement des Sciences de la Terre, Faculte des Sciences de Sfax
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ROCHA FERNANDO
Research centre "Minerals Industrials e Argilas" (FCT), Univ.
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MARQUES JOAO
Centro Tecnologico da Cerdmica e do Vidro
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COROADO JOAO
Research centre "Minerais Industrials e Argilas" (FCT), Institute Politecnico de Tomar
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KOOLI FETHI
ICES
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ZARGOUNI FOUAD
Departement de Geologie, Faculte des Sciences de Tunis
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JAMOUSSI FAKHER
Laboratoire de Georessources INRST
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Barros Olga
Research Centre "minerals Industrials E Argilas" (fct) Univ.
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Coroado Joao
Research Centre "minerais Industrials E Argilas" (fct) Institute Politecnico De Tomar
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Zargouni Fouad
Departement De Geologie Faculte Des Sciences De Tunis
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Rocha Fernando
Research Centre "minerals Industrials E Argilas" (fct) Univ.
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Medhioub Mounir
Departement Des Sciences De La Terre Faculte Des Sciences De Sfax
関連論文
- Comparative Appraisal of Tunisian and Portuguese Smectitic Clays as Raw Materials for the Production of Light Weight Aggregates(Clays in Industry,Proceedings of the 13^ International Clay Conference)
- Clay Mineral Stratigraphy of a 3^ Order Depositional Sequence : Paleoenvironmental Reconstruction and Relations to Orbital Cycles(Clays in Geology,Proceedings of the 13^ International Clay Conference)