PHYSICAL AND MECHANICAL CHARACTERIZATION OF ADOBE FROM THE HISTORIC CENTER OF QUITO SUBJECTED TO ACCELERATED AGING
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Abstract
Adobe is a mixture of silty-clay soil, vegetable fibers, organic matter, and water, which is air-dried and molded into individual masonry units. These in turn together form load-bearing wall systems. To test the influence and possible physical and mechanical effects on adobe bricks from the historic center of Quito, an accelerated aging process was carried out on samples obtained from the old Ecuador Railroad Company building, in a climatic simulation chamber. After this process, physical characterization tests of the material that composes the adobe soil matrix and mechanical compression and shear strength tests by means of U-U triaxial tests were carried out to investigate the existence of variations in their physical or mechanical properties. The results showed that despite constant exposure to moisture and radiation, the mechanical and physical properties of the soil that composes the adobe matrix remained unaltered. The soil used was classified as an ML (low plasticity silt), with a dry density of 15.29 kN/m3 and a natural moisture content of 2.90%.
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