%0 Journal Article %T Estudio de la resistencia del concreto por el efecto combinado de la relaci車n agua-cemento, la relaci車n grava-arena y el origen de los agregados Study of the concrete*s compressive strength due to the combined effect of the water-cement ratio, the coarse-fine aggregate ratio and the source of the aggregates %A R車mel Sol赤s-Carcaˋo %A Eric I Moreno %A Carlos Arcudia-Abad %J Revista T谷cnica de la Facultad de Ingenier赤a Universidad del Zulia %D 2008 %I Scientific Electronic Library Online %X La resistencia a la compresi車n del concreto es el principal par芍metro utilizado para medir la calidad de este material. Desde los primeros a os en los que el concreto se empez車 a utilizar como material estructural se encontr車 que la relaci車n entre el agua y el cemento, utilizados en la mezcla, tiene una gran influencia en la resistencia del concreto. Posteriormente, otros estudios mostraron que la combinaci車n 車ptima entre los agregados gruesos y finos, buscando la mayor compacidad entre 谷stos, tambi谷n era un factor que afecta a la calidad del concreto. Este trabajo presenta un estudio de la resistencia del concreto manipulando tres variables: la relaci車n entre el agua y el cemento (a/c), la relaci車n entre la grava y la arena (g/a) y el banco de origen de los agregados. Se utilizaron valores de a/c y de g/a en un rango posible para la fabricaci車n del concreto y varios tipos de agregados calizos triturados de la Pen赤nsula de Yucat芍n, mismos que podr赤an presentar caracter赤sticas no usuales, en un dise o factorial. Se encontr車 influencia significativa de a/c y el banco de origen de los agregados en la resistencia del concreto. Concrete*s compressive strength is the main parameter used to control the quality of this material. From the beginning, when concrete was started to be used as structural material, it was found that the correlation between the water and the cement employed in the mixture had a great influence in the strength of concrete. Later on, other studies showed that the optimum combination between the fine and the coarse aggregate, seeking the highest compactness in the mixture, was also a factor that affects the concrete quality. This work presents a study about the concrete*s compressive strength using three variables: the correlation between water and cement (w/c), the correlation between coarse and fine aggregates (c/f), and the aggregate*s quarries. By means of a factorial design, the study used values of w/c and of c/f, in a possible range actually employed to make concrete, and several types of crushed limestone aggregates from the Yucatan Peninsula, which may not present the usual properties. It was found a significant influence of the w/c and the quarry in the compressive strength of concrete. %K Agregados calizos triturados %K an芍lisis factorial de varianza %K concreto %K resistencia %K Compressive strength %K concrete %K crushed limestone aggregates %K variance factorial analysis %U http://wwww.scielo.org.ve/scielo.php?script=sci_arttext&pid=S0254-07702008000300002