Caracterización fisicoquímica de un bio-concreto a partir de la adición de residuos agroindustriales: cascara de huevo y cascarilla de arroz

Abstract

The construction sector, although it has guaranteed a better quality of life, is classified as one of the main sources of pollution, both directly and indirectly; the manufacturing of aggregates such as cement and sand gives rise to innumerable environmental problems. On the other hand, in the rice and poultry agro-industrial sector, the incorrect disposal of waste generates negative impacts on the environment: in the rice industry, the rice production process generates rice husk waste and its high demand contaminates the soil; Its open burning generates greenhouse gases as does the poultry industry in egg production. Thanks to the needs of climate change, this research sought to take advantage of the composition of agro-industrial waste (egg shells and rice husks) as replacements for cement and sand in the concrete manufacturing process. Based on technological surveillance, the question to be resolved was: ¿Will the addition and replacement of new materials equal or exceed the physicochemical properties of the final product? For the addition of industrial waste, an experimental design 22 is implemented with raw material replacements of 2.5.8% of eggshell to replace cement and 2, 6, 10% of rice husk to replace sand. Subsequently, the compression resistance test was carried out to observe the mechanical properties and finally the new material was characterized by the X-ray Diffraction (XRD) technique to evaluate the chemical properties.