Physico-Chemical Analysis for Differents Types of Clays Soils in the Areas of Analamanga, Itasy and Vakinankaratra
2013; Volume: 3; Issue: 5 Linguagem: Inglês
ISSN
2166-5346
AutoresAndrianainarivelo Mahandrimanana, Ranaivoson Joseph,
Tópico(s)Soil and Unsaturated Flow
ResumoThe aim of this work is to highlight the physicochemical properties of three various types of clay soils respectively collected at Bevalala (sample 1), Arivonimamo (samp le 2) and Antsirabe (sample 3). The analyses obtained by x-ray fluorescence showed the variation of the co mposition of the major elements in each samp le in part icular the rates of SiO 2 (47.6%, 41.2%, 52.5%), of A l 2 O 3 (16%, 23%, 25%), of MgO (0.52%, 0.39%, 1.9%) and of Fe 2 O 3 (8.3%, 4.7%, 6.4%) at 500°C. . The study of the plasticity of these samples (Ip1= 29.33, Ip2=14.5, Ip3= 24.16) which are intended for the manufacture of pot, of muds or of bricks allo wed to highlight that the clay soil is more plastic than its plasticity index is important. The addition of CaCO 3 and the heating of the sample at 500°C during five hours make it possible to increase the concentration in CaO.
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