Brick establishment is an essential and elementary cell in any construction. In this study, bricks in mortar with sand of dunes (BRSD) were made and submitted to the various trials of characterization. The addition of hydraulic lime according to progressive rates allowed following the influence of the dosage of the latter on the physical characteristics and on the mechanical performances of bricks according to several formulations. The experimental method of formulation is mainly based on the optimization of materials constituting the hydraulic lime and the sand dunes, with the aim of reaching a new composition to enjoy physico-mechanical characteristics wishes. The various realized tries showed that the addition of lime, in a certain interval, possesses an important influence on the physic-mechanical performances of bricks in particular the mechanical resistance and the heat insulation, for a dosage of 30 % of hydraulic lime, the compression resistance of the brick is 8 MPa with a thermal conductivity of 1.7 W/m°C.
Topics
Thermal conductivity
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