Elaboración de adoquines de concreto, empleando cenizas de biosólido como material sustituyente de materia prima

Abstract

The sewage sludge is processed from organic matter derived from wastewater treatment equipment; It is a material rich in nutrients and biologically stabilized. For the development of this research was working with biosolids from the treatment plant wastewater the PTAR El SALITRE located in the city of Bogota. This material to be incinerated drastically reduces its mass and volume, as it removes the total moisture content. The objective of this research is to evaluate from a technical point of view; the inclusion of sewage sludge ash as substituent feedstock material for the elaboration of concrete pavers; taking into account the literature review, where the percentage amount of sewage sludge ash (5%, 10%, 15%, 20% y 25%) to replace fine aggregate (sand) is established. The elaboration of concrete pavers was carried out in PREFABRICADOS DEL SOL LTDA. Located in the city of Sogamoso; following the conventional process that the company has been developing for several years in the manufacture of concrete pavers. For optimum research development, characterization of raw materials for the preparation of adoquin in particular, as they are be carried out; sand, gravel, sewage sludge and sewage ash. Besides preparing the mixture, fromwork, compaction, curing cobble, then the technical evaluation, testing wáter absotion, density, appearance, resistance to flexo-traction, parameters set out and described in NTC – 2017 standard is conduct.