Exposición por sulfatos en el suelo a los elementos superficiales de hormigón de viviendas del cantón Colta, provincia de Chimborazo
Colta is one of the cities of the province of Chimborazo, which capital is Cajabamba. Most of the territory of this city is made up of rural communities where people don't follow design methods when they plan the construction of their homes. Most of them do it in an empirical way with basic kno...
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| Format: | bachelorThesis |
| Sprache: | spa |
| Veröffentlicht: |
2023
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| Online Zugang: | http://dspace.unach.edu.ec/handle/51000/11683 |
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Tag hinzufügen | Zusammenfassung: | Colta is one of the cities of the province of Chimborazo, which capital is Cajabamba. Most of the territory of this city is made up of rural communities where people don't follow design methods when they plan the construction of their homes. Most of them do it in an empirical way with basic knowledge. Failure to comply with current regulations at the time of construction will result in premature deterioration of the house, reducing its useful life and causing pathologies related to the sulfate content of the soil (cracks, moisture, settlement, concrete detachment, reinforcing steel’s corrosion and efflorescence).The main objective of this research was the analysis of sulfate exposure in the soil of the concrete surface elements of houses in the Colta city, for which we started by identifying the points from which samples were taken through the use of ArcGIS software and the systematic sampling method. Tests were carried out for the sieve analysis of fine and coarse aggregates (NTE INEN - 696), moisture content of soil (NTE INEN - 690) and Atterberg limits: liquid limit of soils (NTE INEN - 691) and plastic limit of soils (NTE INEN - 692) tests were performed for subsequent soil classification using the Unified Soil Classification System method (SUCS). The soil sulfate concentration test was also carried out following ASTM C1580-20 standards. Based on the results of the samples collected, it was determined that the majority of the Colta territory consists of silty sand soils (SM). Besides, a map was drawn up zoning the different soil types and sulfate concentrations, most of which are "Severe" according to the NEC and "Exposure Class 2" according to the ACI. Finally, the presence of sulfates was detected in all the samples analyzed and possible pathologies related to the presence of sulfates in the soil were identified. |
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