Análisis del comportamiento de distintos métodos de curado utilizando parafina e inmersión en agua comprobando la eficacia en hormigones estructurales.

Abstract

In the present degree work, the efficiency of the use of paraffin in the curing of structural concretes is analyzed, comparing the results obtained with the use of water, according to what ASTM C 309 -03 and ACI 308 standards tell us. For them, laboratory tests stipulated in the INEN standard (857-858-860-696) were carried out, such as. granulometry, volumetric weight and rods of the aggregates, absorption of aggregates, densities, and design, in order to obtain concrete cylinders for a compressive strength at 28 days of f'c= 21 MPa, on which, at the moment of setting and the first period of concrete hardening, a particular method little used in the field of construction will be used, curing by liquid membrane, thus using paraffin, in addition the method of immersion in water will also be used, to then make the comparison of which is more efficient and appropriate for the use of the setting. Trials were carried out both for the water immersion method and for the use of liquid membranes (paraffin), at ages of 7, 14, 21, 28 days as established in the ACI 308 standard. The results obtained after each of the planned breaks of the cylinders were compared between both methods in order to demonstrate which is the optimal method for curing concrete that provides greater efficiency and meets quality standards, thus avoiding cracking material premature.