A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
L’argile de Kinshasa en tant que matériau adobe
Résumé Dans ces ligne, l’auteur envisage les essais préliminaires à l’élaboration d’une brique adobe, fabriquée au moyen de l’argile de Kinshasa stabilisée par un sable. Sont illustrés essentiellement les problèmes d’identification, de composition, et de façon, en regard des critères habituellement requis. Une méthode simple de définition des compositions est introduite, propre au mode de mise en œuvre du matériau, et n’ayant recours qu’à très peu d’expérimentation. La compacité du matériau sera obtenue par un malaxage manuel de la pâte de sols. Cette première méthode appelle une comparaison avec deux autres, celle de Spronck-Dantinne et la méthode française.
Summary The author considers preliminary tests for formulating an adobe brick (block) made with Kinshasa clay and stabilized wity sand. The problems examined are essentially those of identification, mix and manufacture, as regards criteria currently required. A simple method of defining mixes is presented, proper to the material placing method and calling for very little testing. Material compactness is obtained by mixing the soil paste by hand. This first method implies a comparison with two others: the Spronck-Dantinne and the French method. In brief, the mixes are defined in the following way: they contain three materials-clay, sand and water. Let e be the proportion in weight of water; it is equal to the sum of two quantities: $$e = e_1 + e_2 .$$ The first e1 varies according to the weight of clay: e1=0.32 a, where a is the proportion in clay of the total weight of material. This ratio applies whatever a. The second quantity e2, is equal to the normal optimum Proctor calculated according to the weight of sand used, that is e2=0.07 in this precise case, where s represents the proportion in weight of sand. This method produces a material whose compactness fails to reach the maximum which could be expected, naturally taking into account the mixing method. Good mechanical strengths certify that the method is efficient.
L’argile de Kinshasa en tant que matériau adobe
Résumé Dans ces ligne, l’auteur envisage les essais préliminaires à l’élaboration d’une brique adobe, fabriquée au moyen de l’argile de Kinshasa stabilisée par un sable. Sont illustrés essentiellement les problèmes d’identification, de composition, et de façon, en regard des critères habituellement requis. Une méthode simple de définition des compositions est introduite, propre au mode de mise en œuvre du matériau, et n’ayant recours qu’à très peu d’expérimentation. La compacité du matériau sera obtenue par un malaxage manuel de la pâte de sols. Cette première méthode appelle une comparaison avec deux autres, celle de Spronck-Dantinne et la méthode française.
Summary The author considers preliminary tests for formulating an adobe brick (block) made with Kinshasa clay and stabilized wity sand. The problems examined are essentially those of identification, mix and manufacture, as regards criteria currently required. A simple method of defining mixes is presented, proper to the material placing method and calling for very little testing. Material compactness is obtained by mixing the soil paste by hand. This first method implies a comparison with two others: the Spronck-Dantinne and the French method. In brief, the mixes are defined in the following way: they contain three materials-clay, sand and water. Let e be the proportion in weight of water; it is equal to the sum of two quantities: $$e = e_1 + e_2 .$$ The first e1 varies according to the weight of clay: e1=0.32 a, where a is the proportion in clay of the total weight of material. This ratio applies whatever a. The second quantity e2, is equal to the normal optimum Proctor calculated according to the weight of sand used, that is e2=0.07 in this precise case, where s represents the proportion in weight of sand. This method produces a material whose compactness fails to reach the maximum which could be expected, naturally taking into account the mixing method. Good mechanical strengths certify that the method is efficient.
L’argile de Kinshasa en tant que matériau adobe
Cordier, Y. (author)
Matériaux et Construction ; 11 ; 107-116
1978-03-01
10 pages
Article (Journal)
Electronic Resource
French
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