El Perú está adquiriendo postes de pino amarillo del sur y eu­calipto para ejecutar proyectos de electrificación rural. A pesar de que la conicidad es una característica importante para adquirir accesorios para su instalación, no hay estudios sobre el tema. Se evaluó la conicidad de 642 postes de pino amarillo y 1590 de eucalipto, y se concluyó que existen di­ferencias significativas entre conicidades de ambas especies para un nivel de significación del 5 %.

The use of concrete as a structural element increases year by year. However, this product needs very stringent control of its mechanical properties in order to be uses as structural element. This type of control requires to have very large testing equipment with a load capacity of up to 3.000KN. Production control would benefit greatly from the use of a highly reliable alternative method that would enable the mechanical properties to be found through more easily obtained physical and mechanical properties. The high capacity of artificial neural networks (ANN) to model a broad range of industrial processes makes them a very useful instrument in the concrete industry. In this study, one neural network was developed to obtain the properties of compressive strength. This property was then modeled though the composition of concrete and manufacturing parameters. The network designed, a multila...

El uso del concreto como elemento estructural va aumentando año tras año. Sin embargo, este producto requiere de unos estrictos controles de calidad sobre sus propiedades mecánicas para el uso como elemento estructural. Este tipo de control implica la existencia de equipos de ensayo con una capacidad de carga de hasta 3.000KN. Sería de gran utilidad para el control de producción la utilización de un método alternativo de gran fiabilidad, que permitiera conocer las propiedades mecánicas a partir de otras propiedades físicas y mecánicas más fáciles de obtener. La alta capacidad de las redes neuronales artificiales (ANN) para modelar los más diversos procesos industriales, las convierte en una herramienta de gran utilidad en el ámbito de la industria del concreto. En este estudio se ha desarrollado una red neuronal para obtener la resistencia a compresión del concreto y se ha...

The use of concrete as a structural element increases year by year. However, this product needs very stringent control of its mechanical properties in order to be uses as structural element. This type of control requires to have very large testing equipment with a load capacity of up to 3.000KN. Production control would benefit greatly from the use of a highly reliable alternative method that would enable the mechanical properties to be found through more easily obtained physical and mechanical properties. The high capacity of artificial neural networks (ANN) to model a broad range of industrial processes makes them a very useful instrument in the concrete industry. In this study, one neural network was developed to obtain the properties of compressive strength. This property was then modeled though the composition of concrete and manufacturing parameters. The network designed, a multila...