Bibliographic citations
Cardenas, F., Llamoctanta, R. (2023). Determinación de la variabilidad de resistencia a la compresión en testigos diamantinos, influenciados por los diámetros, alturas y humedades; para elementos estructurales de f'c = 210 kg/cm2 en Lima Metropolitana [Tesis, Universidad Peruana de Ciencias Aplicadas (UPC)]. http://hdl.handle.net/10757/667499
Cardenas, F., Llamoctanta, R. Determinación de la variabilidad de resistencia a la compresión en testigos diamantinos, influenciados por los diámetros, alturas y humedades; para elementos estructurales de f'c = 210 kg/cm2 en Lima Metropolitana [Tesis]. PE: Universidad Peruana de Ciencias Aplicadas (UPC); 2023. http://hdl.handle.net/10757/667499
@misc{sunedu/3374307,
title = "Determinación de la variabilidad de resistencia a la compresión en testigos diamantinos, influenciados por los diámetros, alturas y humedades; para elementos estructurales de f'c = 210 kg/cm2 en Lima Metropolitana",
author = "Llamoctanta Lara, Robert",
publisher = "Universidad Peruana de Ciencias Aplicadas (UPC)",
year = "2023"
}
In this experimental investigation, the effect of diameter, slenderness and humidity condition in concrete diamond cores regarding their compressive strength was studied. For this, 72 samples with diameters of 2.5", 3" and 4", slenderness ratios L/D = 1 and 2, as well as dry, standard and wet humidity conditions were manufactured and analyzed. The samples were taken perpendicular to the direction of concrete placement, in order to obtain quantitative information on the variability of compressive strength influenced by the effects mentioned above. The results of the tests revealed that the effect of the diameter in the cores with diameters smaller than the standards showed a reduction in the compressive strength values of 14% and 6% for the 2.5" and 3" cores, respectively. Regarding the effect of slenderness, the cores with a L/D = 1 ratio, with diameters of 3" and 4", showed an increase in resistance as far as 20%, while those with 2.5" cores increased their resistance as far as 30%. Regarding the humidity condition, the wet samples decreased their resistance by 3% as compared to the samples in the standard humidity condition. In addition, it was showed that the higher the moisture content, the lower the resistance in the concrete samples. Finally, correction factors were determined for the different conditions of moisture, slenderness and diameter with all the information obtained and the analysis of the results. These factors will make it possible to approximate the resistance values that would be obtained under standardized conditions.
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