Abstract
Concrete is a versatile material, and because it is found in all types of construction, its demand has increased, thus generating an increase in the extraction of aggregates, which many times do not meet technical specifications. The aim was to comparatively evaluate concretes made with hill and river quarries, for designs with compressive strength (f'c) = 175 kg/cm2 and f'c = 210 kg/cm2. The properties of both hill and river aggregates were analyzed to calculate the dosage of the components, using the methodology of committee 211 of the American Concrete Institute (ACI); after the preparation of the specimens, the curing was carried out and later the compressive strength tests were carried out at 7, 14 and 28 days. It was determined that the concrete made with river aggregates meets the minimum compressive strength parameters; However, most of the aggregates do not comply with the Peruvian Technical Standard (NTP) 400.037 and this has a negative effect on the strength of the concrete. Therefore, the use of hill aggregates is recommended, taking into account the respective corrections in the mix design to obtain concretes with the required strengths.
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