La contaminación sonora durante el proceso constructivo de un pavimento rígido es un factor ambiental que incide negativamente en la calidad de vida de los trabajadores y la población aledaña, en tal sentido, el objetivo del estudio fue analizar los niveles de ruido emitidos por el equipo mecánico utilizado en la construcción de vías urbanas a fin de proponer protección auditiva a los trabajadores. Los resultados indican que el equipo mecánico utilizado en la construcción de vías del distrito de Desaguadero emite niveles de ruido desde 69,6±5,1 dBA a 98,4±3,8 dBA, siendo los equipos livianos los más influyentes. La tarea más ruidosa es la del corte del concreto en pavimento que presenta un nivel de ruido de 87,88±3,2 dBA medido a un radio de cinco metros de la fuente. En conclusión, el equipo mecánico utilizado en la construcción de vías emite niveles de ruido que pue...

Concrete is the most common material used in most civil works because it is a highly resistant and with material steel has a good structural behavior, its production is used as the main cement component, which directly affects the cost , which is why it seeks to reduce the amount of cement with the addition of fly ash, which is a pollutant, waste of power plants. The objective was to dose mixtures of added fly ash as a substitute for the cement in such a way that it does not diminish the resistance of this one and to find the optimal dosage. The material and method used is normal concrete with fly ash additions to the design in proportions of 2.5%, 5.0%, 10.0% and 15.0% for breakages at 7, 14 and 28 days. The results indicate that after 28 days have resistances averaging 221kg/cm2 for both normal concrete as well as concrete with fly ash 2.5%, 231kg/cm2 for 5.0%, 200kg/cm2 ...

Noise pollution during the construction process of a rigid pavement is an environmental factor that negatively affects the quality of life of workers and the surrounding population, in this sense, the objective of the study was to analyze the noise levels emitted by mechanical equipment. used in the construction of urban roads in order to offer hearing protection to workers. The results indicate that the mechanical equipment used in the construction of roads in the Desaguadero district emits noise levels from 69.6±5.1 dBA to 98.4±3.8 dBA, with light equipment being the most influential. The loudest task is cutting concrete in pavement which exhibits a noise level of 87.88±3.2 dBA measured at a radius of five meters from the source. In conclusion, the mechanical equipment used in the construction of roads emits noise levels that can affect the health of the population and the performan...

Concrete is the most common material used in most civil works because it is a highly resistant and with material steel has a good structural behavior, its production is used as the main cement component, which directly affects the cost , which is why it seeks to reduce the amount of cement with the addition of fly ash, which is a pollutant, waste of power plants. The objective was to dose mixtures of added fly ash as a substitute for the cement in such a way that it does not diminish the resistance of this one and to find the optimal dosage. The material and method used is normal concrete with fly ash additions to the design in proportions of 2.5%, 5.0%, 10.0% and 15.0% for breakages at 7, 14 and 28 days. The results indicate that after 28 days have resistances averaging 221kg/cm2 for both normal concrete as well as concrete with fly ash 2.5%, 231kg/cm2 for 5.0%, 200kg/cm2 ...

Concrete is the most common material used in most civil works because it is a highly resistant and with material steel has a good structural behavior, its production is used as the main cement component, which directly affects the cost , which is why it seeks to reduce the amount of cement with the addition of fly ash, which is a pollutant, waste of power plants. The objective was to dose mixtures of added fly ash as a substitute for the cement in such a way that it does not diminish the resistance of this one and to find the optimal dosage. The material and method used is normal concrete with fly ash additions to the design in proportions of 2.5%, 5.0%, 10.0% and 15.0% for breakages at 7, 14 and 28 days. The results indicate that after 28 days have resistances averaging 221kg/cm2 for both normal concrete as well as concrete with fly ash 2.5%, 231kg/cm2 for 5.0%, 200kg/cm2 ...

Improper management of plastic bottle waste is harming the environment. Recycling this waste for inclusion in the concrete matrix is a viable alternative for its final disposal. The objective of this study was to evaluate the mechanical behavior of conventional concrete with the addition of polyethylene terephthalate (PET) fibers, designed according to the procedures established by the American Concrete Institute for a strength of 20 MPa. The analyzed properties of the concrete included consistency, density, compressive strength, and flexural strength. Sixty cylindrical and 60 prismatic specimens with PET fiber additions of 0%, 2%, 4%, 6%, and 8% by weight of cement were prepared for testing at 7, 14, and 28 days of curing. The results indicate that maximum compressive and flexural strengths of 22.79 MPa and 3.19 MPa are achieved at 28 days by adding 2% and 6% PET fibers. Therefore, its ...

Improper management of plastic bottle waste is harming the environment. Recycling this waste for inclusion in the concrete matrix is a viable alternative for its final disposal. The objective of this study was to evaluate the mechanical behavior of conventional concrete with the addition of polyethylene terephthalate (PET) fibers, designed according to the procedures established by the American Concrete Institute for a strength of 20 MPa. The analyzed properties of the concrete included consistency, density, compressive strength, and flexural strength. Sixty cylindrical and 60 prismatic specimens with PET fiber additions of 0%, 2%, 4%, 6%, and 8% by weight of cement were prepared for testing at 7, 14, and 28 days of curing. The results indicate that maximum compressive and flexural strengths of 22.79 MPa and 3.19 MPa are achieved at 28 days by adding 2% and 6% PET fibers. Therefore, its ...

La presente Investigación denominado "Los recursos educativos en el aprendizaje de la trigonometría, en alumnos de Educación Secundaria de Puno" tiene el objeto de contribuir al proceso enseñanza-aprendizaje en la utilización de los recursos educativos que hoy se ve limitada, el docente actualmente no dispone de recursos educativos pertinentes, utiliza solamente lápiz, papel y pizarra. El problema de investigación plantea qué resultados serán alcanzados con la aplicación de recursos educativos adecuados al aprendizaje de la trigonometría, en alumnos de las IES. de la ciudad de Puno en el año 2007. La base de la explicación teórica es que los recursos educativos utilizados de manera adecuada permiten alcanzar aprendizajes positivos en la trigonometría siendo efectiva para el desarrollo de capacidades. Los recursos educativos despiertan el interés, activan procesos cognitiv...

El hidrocarburo residual impacta negativamente en suelos donde se ubican talleres de mantenimiento de maquinaria vehicular y plantas de procesamiento de áridos en la Región Puno en el año 2013; siendo su utilidad aplicable a la estabilización de suelos en obras de ingeniería. Por tanto el objetivo del estudio es determinar el efecto que ocasiona el aceite residual de la maquinaria pesada en los factores físico mecánicos del suelo. Para tal fin como proceso metodológico se procedió al mezclado de muestras de suelo con aceite residual, en las proporciones de 0%, 2%, 4%, 6%, 8% y 10% en peso seco y sometidos a ensayos de laboratorio, estableciendo primero las características iniciales que presenta el suelo; luego el efecto que produce el incremento del aceite residual en los factores físico mecánicos del suelo. La · consistencia del estudio se realizó mediante la estadística ...

El aumento de la densidad poblacional y la dinámica de la expansión urbana hacen de estas zonas vulnerables al consumo de agua potable por la creciente demanda de este líquido elemento los cuales tienen complejos sistemas de tratamiento y abastecimiento. En este sentido, el propósito del estudio es evaluar el consumo promedio de agua potable y los coeficientes de variación horaria y diaria a fin de compararlos con los valores establecidos por la OMS y el RNE, para tal efecto se consideró la población urbana ubicada en el centro poblado de Salcedo de la ciudad de Puno con una muestra de 1246 viviendas y 5820 habitantes. En el estudio se determinó que el consumo promedio de agua es de 66.92 lit/hab/día influenciados por factores como ingreso económico, número de habitantes por vivienda y meses del año; además los coeficientes de variación diaria y horaria obtenidos fueron de ...

El concreto es el material mas usado en la mayoria de las obras civiles debido a que es un material altamente resistente y junto al acero tiene un buen comportamiento estructural, en su elaboración se utiliza como componente principal al cemento, el cual incide directamente en el costo, razón por la cual se busca disminuir la cantidad de cemento con la adición de ceniza volante, el cual es un producto contaminante, del desecho de las centrales termoe­lectricas. Objetivo: Determinar el efecto de la ceniza volante en la resistencia del concreto e identificar el porcentaje 6ptimo de utilizaci6n en la dosificacion. Material y metodos: Se utilize concreto normal con adiciones de ceniza volante al disefio en proporciones de 2,5%, 5,0%, 10,0% y 15,0% para roturas a Ios 7, 14 y 28 dias. Resultados: A los 28 dias se tienen resistencias en promedio de 221 kg/cm2 tanto para concreto n...

Concrete is the most common material used in most civil works because it is a highly resistant and with material steel has a good structural behavior, its production is used as the main cement component, which directly affects the cost , which is why it seeks to reduce the amount of cement with the addition of fly ash, which is a pollutant, waste of power plants. The objective was to dose mixtures of added fly ash as a substitute for the cement in such a way that it does not diminish the resistance of this one and to find the optimal dosage. The material and method used is normal concrete with fly ash additions to the design in proportions of 2.5%, 5.0%, 10.0% and 15.0% for breakages at 7, 14 and 28 days. The results indicate that after 28 days have resistances averaging 221kg/cm2 for both normal concrete as well as concrete with fly ash 2.5%, 231kg/cm2 for 5.0%, 200kg/cm2 ...

Noise pollution during the construction process of a rigid pavement is an environmental factor that negatively affects the quality of life of workers and the surrounding population, in this sense, the objective of the study was to analyze the noise levels emitted by mechanical equipment. used in the construction of urban roads in order to offer hearing protection to workers. The results indicate that the mechanical equipment used in the construction of roads in the Desaguadero district emits noise levels from 69.6±5.1 dBA to 98.4±3.8 dBA, with light equipment being the most influential. The loudest task is cutting concrete in pavement which exhibits a noise level of 87.88±3.2 dBA measured at a radius of five meters from the source. In conclusion, the mechanical equipment used in the construction of roads emits noise levels that can affect the health of the population and the performan...