Examinando por Materia "Tecnología del concreto"
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- PublicaciónAcceso abiertoAprovechamiento de una ceniza de fondo de caldera en la fabricación de un concreto liviano(Universidad de San Buenaventura, 2015) González Muñoz, Alexandra; Amu Bolaños, MaribelThe present study was conducted in order to establish, from the research, physical and mechanical behavior of a traditional concrete when it is added in different proportions a light ash bottom of the boiler (BA) by-product of burning cane sugar during papermaking. This product replacement part to the large and fine aggregate in the hydraulic concrete that, in the case of this research, corresponds to a naturally occurring gravel product crushing quarry rock and river sand cauca.
- PublicaciónAcceso abiertoDiseño de una propuesta que permita presentar alternativas para disminuir la contaminación en el proceso de mezclado del concreto en la empresa Rocales y Concretos S.A.S.(2011) Velasco Perea, Ramiro; Rivera Ruiz, Juan Carlos; Montoya Serrano, Arturo
- PublicaciónAcceso abiertoEstudio de factibilidad en diferentes escenarios de mercado para la implementación de una empresa de fabricación de pavimentos en concretos de alta porosidad(Universidad de San Buenaventura, 2014) López Buitrago, Luis Carlos; Rentería Ramos, Rafael RicardoThe feasibility study for the implementation of a company is focused on determining the viability of a commercial investment, identify if relevant run an entire business plan and reduce the risk of losses due to the introduction of a new market or sector the large companies that dominate. The intent of this study was to determine market opportunities for the implementation of specialized concrete pavements in high porosity, identifying the viability of the business proposal from different market scenarios studied company. This Project was worked on the mode of entrepreneurship.
- PublicaciónAcceso abiertoEstudio del comportamiento de los residuos provenientes del sector de la construcción privada y pública de la ciudad de Santiago de Cali, a partir de la obtención de agregado grueso y fino para el concreto(Universidad de San Buenaventura, 2014) Vargas Piedrahita, Alejandra; Toro Perea, Edward FernandoThe research was aimed to evaluate the effect on the physical and mechanical behavior of the incorporation of recycled aggregate in concrete, to fulfill the purpose of the investigation gravel, sand and debris were used. To accomplish this project was first conducted sampling, then manually separated to go to the crushing operation, having the particles having a particle size analysis based on the NTC-77 standard is performed, the test with a brand PINZUAR electric Sieving was performed, to identify the variability of aggregate grading density tests were performed, this test was conducted under the NTC-176 standard; finally concrete mixes recycled aggregates from the ACI method is performed, the mechanical behavior by NTC-673 standard was assessed, the cylinders were evaluated by the Universal Testing Machine PINZUAR PC42D references. (1) Identified as relevant data that 87.3% of the amount of debris is constituted by waste reusability as coarse aggregate, because they are constituted by brick, concrete and stone. Only 12.7% of the debris is composed of unwanted material to the valuation process of debris; which consists of organic matter, lime, metal, plaster and glass. It was established that the No3 mixture which was formed by adding 45% traditional and 55% aggregate recovered, showed the best mechanical behavior resisting 24.7 MPa, a density of 2.1 kg / m3 and 3% water absorption.