Determinación de la conductividad térmica y resistencia mecánica de ladrillos y placas conformadas de cemento y polietileno teraftalato (PET).

Abstract

At the global level there in an environmental trend focused on the reduction, reuse of plastic waste and recycling. This trend has gradually gained momentum in Latin America oriented to manufactured of masonry of PET waste, due to the of it, it is evident the low environmental impact that the bricks of cement and PET have, avoiding the use of arable land, reusing solid waste (PET) and without CO2 emissions into the atmosphere. However, in Latin American countries there is a little knowledge and awareness about recycling and its benefits. The purpose of the present certification work is to determine the thermal conductivity and mechanical strength of plates and cement shaped bricks and PET. The tests used are the basis for comparison of bricks and prototype planes with artisan clay bricks, showing more clearly the advantages and disadvantages of their use in civil constructions. Through the experimentation and elimination, the final dosage was selected and replaced in percentage of sand by 40% PET crushed in its manufacture to improve its physical, mechanical and thermal properties, resulting in high values of compressive strength in table of 15,55 MPa and 4,82 MPa at the edge, meanwhile in bending a breaking strength of 2,27 MPa, in the same way the way thermal and physical tests were determined to be heat insulating products whit a low coefficient of thermal conductivity of 0,32 W/m°C and low absorption percentage. Considering them a profitable product of production and that they can compete easily in the market with the common bricks.