Resistencia a la compresión de concreto de 21MPA, utilizando cobertura tipo fibra de costal y cobertura tela polar FLEECE en el curado del concreto

Abstract

Concrete is a material of great utility and importance for engineers, builders and workers, with which infrastructure works are developed1, this material must provide resistance and durability to the structures, for which the appropriate materials must be acquired for the elaboration of this, without leaving behind the corresponding dosage according to the amount to be generated and making the appropriate mixture to achieve a concrete that meets the specifications required by the standard. To analyze the behavior of the curing, it is carried out through a quantitative analysis, in order to determine the maximum resistance that concrete structures can acquire, in the design of the mixture the relative proportions of the materials to be used (cement, water, fine and coarse aggregate), to carry out the elaboration of 120 concrete specimens of 21Mpa, elaborating three mixtures of 40 cylinders, in which five groups of specimens with different types of curing were made (coverage type sack fiber and coverage polar fleece fabric) like this: polar fleece fabric coverage with sprayed 3 times a day for 7 days, sack fiber coverage with sprayed 3 times a day for 7 and 14 days, sack fiber coverage without spraying and submerged. What is sought with this project is to analyze the results obtained by comparing the compressive strength of concrete, defining the type of curing used in each group of specimens, under weather conditions in the city of Tunja with the application of water. at different time intervals, in such a way that it can be shown with which of the above-mentioned materials is the one with the best resistance to compression. The failure of the cylinders was carried out at 28 and 56 days with non-adhered endorsement, in order to carry out the respective comparison of the results of compressive strength of the concrete, analyzing which is the most favorable for curing in cold climates.