Bibliographic citations
Briones, E., (2018). Influencia del tipo y la relación agua/yeso sobre la compresión, porosidad, densidad, fraguado y expansión para la conservación de edificaciones, Trujillo 2018 [Tesis, Universidad Privada del Norte]. https://hdl.handle.net/11537/13799
Briones, E., Influencia del tipo y la relación agua/yeso sobre la compresión, porosidad, densidad, fraguado y expansión para la conservación de edificaciones, Trujillo 2018 [Tesis]. PE: Universidad Privada del Norte; 2018. https://hdl.handle.net/11537/13799
@misc{sunedu/2809047,
title = "Influencia del tipo y la relación agua/yeso sobre la compresión, porosidad, densidad, fraguado y expansión para la conservación de edificaciones, Trujillo 2018",
author = "Briones Gatica, Elisa Zoraida",
publisher = "Universidad Privada del Norte",
year = "2018"
}
Gypsum is undoubtedly a material of great importance in the field of construction and especially in processes of conservation of buildings considered cultural heritage, although in our country this material is not used in the same way as in other countries, this does not it removes the great characteristics that it presents to solve problems caused by the passage of time that suffer the buildings that are considered cultural heritage and in general all types of construction. It is clear that the use of gypsum according to its physical and mechanical characteristics shows a great performance against external agents or exposures of high temperatures. Therefore, because gypsum is an accessible and inexpensive material, it is taken into account as a restorative material and of great use in constructive methods. Therefore, the present investigation proposes to delve into the physical and mechanical characteristics that plaster presents as expansion, resistance to compression, porosity, density and setting in such a way that it is shown as a great option in the field of construction. For the development of the present research, plasters from different places of origin from the city of Trujillo, 3 industrial plasters (registered trademarks) marketed in large hardware stores and 3 handmade plasters obtained from small hardware stores have been used. The mineralogical composition was analyzed for both the artisan plaster I and Hades construction, revealing that both plaster casts do not comply with the established parameters regarding their chemical composition; the gypsums were classified according to their type, construction and ceramic, analyzed the water / gypsum ratio was 0.60 (38% water) and 0.70 (41% water), with respect to the granulometry of the material used, are shown as a fine-to-coarse-grained material with a fineness modulus ranging from 0.6 to 2.3. The characteristics that the plaster presents in fresh state according to the ratios a / and obtained, is a workable material with a setting time of approximately 61 minutes, to then form 240 cubic specimens of dimensions of 5cm x 5cm x 5cm in wooden molds; the specimens had a drying period of 26 to 28 days. It was determined that there are no quality plasters in our city, however, the plaster Martell presented better properties with a resistance of 13 kg / cm2 to 26 days of curing at room temperature, in addition, the best ratio to / and is 0.70. Likewise, this plaster presented one moisture content with 6.8% and density of 0.94 g / cm3 being within the allowed range taking into account theoretical data, with this it is recommended to use this plaster for the purpose of restoration work and coatings for buildings considered cultural heritage. The artisan gypsum I and III obtain low compression results with 10 kg / cm2 in addition to having high percentages of porosity with 51%. According to the SPSS normality test, the variables studied have a normal behavior and the analysis of variance shows us that alternate or specific hypotheses are accepted as having an experimental F greater than the theoretical one. Finally, the analysis of these results has been of great help to determine the benefits of gypsum as a material for conservation use in the field of construction.
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