Browsing by Author "Castillo Carchipulla, Edison Maximiliano"

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Mortero impermeable a base de plástico reciclado PET para revestimientos de edificaciones de la ciudad de Zamora
(2018-04-25) Zaruma Uzhca, Luis Antonio; Castillo Carchipulla, Edison Maximiliano
The present investigation proposes a solution that minimizes the causes for the damage in coatings or plastering of buildings of subtropical climate, as it is the case of the city of Zamora, in the province of Zamora Chinchipe, South East of Ecuador, characterized by high pluviometric level, and approximately 90% relative humidity. This last characteristic of the climate, the rainwater that filters through the subsoil, causes pathological problems in the coatings of not less than 60% of existing constructions, that is why the lower part of internal plasters is progressively deteriorating. in facades, as well as diminishing the environmental quality inside the homes. Identified the problem is the experimentation, work that begins by studying the mortars that is the material of 99% in the plastering of buildings. The mixture is analyzed with sand and cement, which will serve as a base or standard for adding polyethylene terephthalate (PET) particles, in order to improve its impermeability while maintaining the physical-mechanical characteristics that national and international standards require. The comparison was developed with mixtures containing 0%, 5%, 10% and 20% PET in the mixture in replacement of the aggregate.
Relaciones agua-cemento en diseño de vértices extremos aplicado a mortero
(2018) Lema, William; Castillo Carchipulla, Edison Maximiliano
The present research deals with the application of the water/cement relations in extreme vertices design for mortars to delimit an operability zone in the simplex. Three components were used: water, Portland pozzolanic cement, and fine sand, and the responses were compressive strengths at 24 h, 3, 7 and 28 days, and mortar fluidity. The performed analysis revealed that the water/cement relations can be modeled according to the principles of the experimental mix design and they can be used as constraints for the application of the extreme vertices design. Results showed that water/cement ratios have delimited ranges. The mathematical models explain the response with Raj 2 greater than 85% and with values of p<0.009. In addition, results proved the existence of a feasible operability zone in the simplex for mortars of which the ratio water/cement varies in the range 0.3≤x1/x2≤0.9, with the resistances varying between 75.67 to 473.35 kg/cm2 at 28 days and the fluidity from 45.15 to 150%. The mortar cost in the operability zone varies from 65.94 to 229.73$ per m3, enabling the constructor to select the mortar corresponding to the technical needs.