Influencia del aditivo sikament 290 n en las propiedades del concreto cemento-arena, elaborado con agregado fino marginal y 4 marcas de cemento – Iquitos, 2023
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2024-12-13
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Universidad Científica del Perú
Abstract
La presente tesis aborda la influencia del aditivo, Sikament 290 N - en su dosificación de superplastificante-, en las propiedades en estado fresco y en la resistencia a la compresión y resistencia a la flexión del concreto cemento arena, elaborado con agregado fino marginal de módulo de fineza 1.09, usando dos relaciones agua cemento A:C= 0.58 y 0.64, y las siguientes 4 marca de cemento: Apu Tipo GU, Inka Tipo ICO, Andino Tipo I y Amazónico tipo GU, con una dosificación de aditivo 0.9% con relación al peso del cemento. Es una investigación tipo cuantitativa, de nivel descriptiva y explicativa; de diseño cuasi experimental. El tamaño de la muestra estuvo conformado por 416 probetas de concreto f’c=210 kg/cm2, de las cuales el 50% correspondieron al concreto patrón, ensayándose 192 para determinar la resistencia a la compresión y 16 para la flexión; asimismo, 208 probetas correspondieron al concreto experimental. Los ensayos se efectuaron a los 7 y 28 días de curado. Se usó la estadística descriptiva para el procesamiento de la información y la inferencial para la prueba de hipótesis. Los resultados, indican que, la adición del aditivo polifuncional SIKAMENT 290N influye en las propiedades en estado fresco, en la resistencia a la compresión y resistencia a la flexión del concreto cemento- arena, para las marcas de cemento: Apu Tipo GU, Inka Tipo ICO, Andino Tipo I y Amazónico Tipo GU, para un diseño de concreto patrón de resistencia f’c=210kg/cm², quedando de esta manera confirmada la hipótesis general.
This thesis addresses the influence of the additive, sikament 290 N- about its superplasticizer dosage – on the properties in fresh state and on the compressive strength and the flexural strength of concrete cement sand, made with fine marginal aggregate of fineness module 1.09, using two water -cement ratios A:C=0.58 Y 0.64, and the following 4 cement brands “Apu Tipo GU, Inka Tipo ICO, Andino Tipo I y Amazónico tipo GU” with an additive dosage of 0.9 % in relation to the weight of the cement. It is a quantitative type of research, descriptive and explanatory; of quasi-experimental design. The sample size was consisted of 416 test tubes of concrete f’c=210 kg/cm2, of which 50 % corresponded to standard concrete, 192 were tested to determine the compressive strength and 16 the flexural strength; in addition, 208 concrete test tube corresponded to the concrete explanatory. The tests were performed at 7 and 28 days of curing. Descriptive statistics were used for information processing and inferential for hypothesis testing. The results indicate that the addition of the polyfunctional additive SIKAMENT 290N influences the properties in the fresh state, in the resistance to compression and resistance to bending of cement -sand concrete, for cement brands: Apu Tipo GU, Inka Tipo ICO, Andino Tipo I y Amazónico Tipo GU, for a concrete design resistance pattern f'c = 210kg/cm ², thus confirming the general hypothesis.
This thesis addresses the influence of the additive, sikament 290 N- about its superplasticizer dosage – on the properties in fresh state and on the compressive strength and the flexural strength of concrete cement sand, made with fine marginal aggregate of fineness module 1.09, using two water -cement ratios A:C=0.58 Y 0.64, and the following 4 cement brands “Apu Tipo GU, Inka Tipo ICO, Andino Tipo I y Amazónico tipo GU” with an additive dosage of 0.9 % in relation to the weight of the cement. It is a quantitative type of research, descriptive and explanatory; of quasi-experimental design. The sample size was consisted of 416 test tubes of concrete f’c=210 kg/cm2, of which 50 % corresponded to standard concrete, 192 were tested to determine the compressive strength and 16 the flexural strength; in addition, 208 concrete test tube corresponded to the concrete explanatory. The tests were performed at 7 and 28 days of curing. Descriptive statistics were used for information processing and inferential for hypothesis testing. The results indicate that the addition of the polyfunctional additive SIKAMENT 290N influences the properties in the fresh state, in the resistance to compression and resistance to bending of cement -sand concrete, for cement brands: Apu Tipo GU, Inka Tipo ICO, Andino Tipo I y Amazónico Tipo GU, for a concrete design resistance pattern f'c = 210kg/cm ², thus confirming the general hypothesis.
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Concreto cemento-arena, Aditivo polifuncional, Superplastificante, Cement cement-sand, Additive, Polyfunctional, Superplasticizer
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