Comparación de la Resistencia a la Compresión del Concreto 210 Kg/Cm² de tres tipos de cemento con arena de río y arena blanca Iquitos – 2022
Date
2023-03-04
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Universidad Científica del Perú
Abstract
El presente estudio, tiene como objetivo la comparación de los resultados
del ensayo de resistencia a la compresión de un concreto convencional
(cemento-arena) F’c= 210kg/cm2 con diferentes marcas de cementos con
relaciones A/C de (0.58, 0.60 y 0.62) y con dos tipos de agregados (Arena
de Río Nanay y Arena Blanca de cantera)
La muestra estuvo conformada por 162 especímenes de concreto con
diferentes marcas de cementos, con diferentes relaciones A/C y dos tipos
de agregados, para los cuales se procedieron a la rotura o prueba uniaxial
en edades de 7, 14 y 28 días. Se aplicó la estadística descriptiva para el
procesamiento de la información; y, se comprobó la hipótesis al momento
de analizar los resultados de los ensayos que se realizaron.
Los resultados de esta investigación arrojaron que el cemento amazónico
TIPO GU alcanza su mayor resistencia con arena de río si se utiliza una
relación A/C de 0.58.
En esta investigación se alcanzó una resistencia de 271kg/cm2 superando
al diseño con arena blanca con la misma relación el cual alcanzo una
resistencia de 256kg/cm2.
Analizando los resultados, todos son aceptables ya que sobrepasan al F’c
de diseño.
Finalmente, con el estudio realizado se puede concluir que si se puede
utilizar las diferentes marcas de cementos (APU, AMAZONICO E INKA),
para la elaboración del concreto (cemento-arena). Sin embargo, SI EXISTE
DIFERENCIA SIGNIFICATIVA al utilizar diferentes marcas de cementos en
el diseño de mezcla la cual se responde a nuestra hipótesis HI.
The objective of this study is to compare the results of the compressive strength test of a conventional concrete (cement-sand) F’c= 210kg/cm2 with different brands of cements with A/C ratios of (0.58,0.60 and 0.62) and with two types of aggregates (Sand from RÍo Nanay and White Sand from quarry) The sample consisted of 162 concrete specimens with different brands of cement, with different A/C ratios and two types of aggregates, for which breakage or uniaxial testing was carried out at ages of 7, 14 and 28 days. Descriptive statistics were applied for information processing; and, the hypothesis was verified at the moment of seeing and analyzing the results of the tests that were carried out. The results of this investigation showed that the Amazonian cement TYPE GU reaches its highest resistance with river sand if an A/C ratio of 0.58 is used. In this investigation, a resistance of 271kg/cm2 was reached, surpassing the design with white sand with the same ratio, which reached a resistance of 256kg/cm2. Analyzing the results, all are acceptable since they exceed the design F’c. Finally, with the study carried out it can be concluded; that if you can use the different brands of cement (APU, AMAZONICO AND INKA), for the preparation of concrete (cement-sand). Therefore, THERE IS A SIGNIFICANT DIFFERENCE when using different brands of cement in the mix design, which responds to our HI hypothesis.
The objective of this study is to compare the results of the compressive strength test of a conventional concrete (cement-sand) F’c= 210kg/cm2 with different brands of cements with A/C ratios of (0.58,0.60 and 0.62) and with two types of aggregates (Sand from RÍo Nanay and White Sand from quarry) The sample consisted of 162 concrete specimens with different brands of cement, with different A/C ratios and two types of aggregates, for which breakage or uniaxial testing was carried out at ages of 7, 14 and 28 days. Descriptive statistics were applied for information processing; and, the hypothesis was verified at the moment of seeing and analyzing the results of the tests that were carried out. The results of this investigation showed that the Amazonian cement TYPE GU reaches its highest resistance with river sand if an A/C ratio of 0.58 is used. In this investigation, a resistance of 271kg/cm2 was reached, surpassing the design with white sand with the same ratio, which reached a resistance of 256kg/cm2. Analyzing the results, all are acceptable since they exceed the design F’c. Finally, with the study carried out it can be concluded; that if you can use the different brands of cement (APU, AMAZONICO AND INKA), for the preparation of concrete (cement-sand). Therefore, THERE IS A SIGNIFICANT DIFFERENCE when using different brands of cement in the mix design, which responds to our HI hypothesis.
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Keywords
Concreto cemento- arena, Arena de río, Arena de cantera, Concrete cement-sand, River sand, Quarry sand
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