Evaluation of lateritic soils of Mbé for use as compressed earth bricks (CEB)
Japhet Taypondou Darman, Jules Hermann Keyangue Tchouata, Gilbert François Ngôn Ngôn, François Ngapgue, Bachirou Lindou Ngakoupain, Yannick Tchedele Langollo
Abstract
, 3.2-8.1 wt%); other oxides are in lower proportions (<1 wt%). The mineralogical content consists mainly of clay minerals such as kaolinite, illite, smectite (montmorillonite), and non-clay minerals such as quartz, muscovite, biotite, gibbsite, and hematite. The bulk density and mechanical properties of the specimens are within the standard NC 102-115 (2007) of compressed earth bricks (CEB), which recommends minimum compressive strengths of 2 Mpa for unstabilized CEB and 4 Mpa for stabilized CEB. Water absorption of CEB and physical parameters of soils have a significant impact on the mechanical behavior of CEB. According to the test results, Mbe lateritic soils are suitable for engineering applications in the production of stabilized compressed earth bricks.