Reutilización de lodos y ripios de perforación de la actividad petrolera, en la elaboración de bloques para el sector de la construcción

Abstract

The purpose of this research was to revalue drilling muds, in the manufacture of blocks, for the construction sector. Before being constituted as aggregate material of the block, the mud was tested for toxicity and mineralogical composition. Because the Ecuadorian Technical Standard, NTE-INEN-638, indicates the components of the block but not its proportions, a local block was investigated the empirical way of establishing the quantities, it was found that the gravel is another aggregate of the commercial block, and six units were purchased for laboratory testing; with this information blocks were made under the standard INEN 638; to the blocks acquired are denominated reference and to the elaborated ones denominated pattern to him. The two groups of blocks were tests for resistance to compression, resulting the reference as type C and pattern type A. For the preparation of blocks with mud amendments, the ACI method 211.1 was used, prescribing a minimum resistance of 80 Kg/cm2, using a dosage of 30% of gravel and 30% of sludge, with respect to the amount of cement in the mortar, resulting in a block type B with a compressive strength of 5.4 Kg/cm2, which allowed to test higher dosages of sludge in the mortar, such as 60 and 80%. The sludge amendment blocks of 60 and 80% were, according to the Ecuadorian Technical Standard, NTE-INEN 638, to be Class C and D, used for exterior partitions without and with coating, respectively, while blocks of 30% of sludge, proved to be type B, for exterior and interior walls with and without coating.