Global Journal of Human Social Science, C: Sociology and Culture, Volume 23 Issue 2

b) Temporary phases of work The work we present here was carried out in three different phases. First phase: Projected poultices were elaborated with a prototype of industrial projection [6] [20] using Arbocel® cellulose pulp (Rettenmaier Ibérica BWW40 fiber). Two poultices (one was “GPM”and the other one “Handmade”) were placed on two test tubes of 5x10x10 cm of sandstone from Uncastillo (upper side of 10x10cm). Later, the poultice-rock aggregate was consolidated by pouring10 g of the epoxy resin onto the surface of the poultice, and by allowing it to penetrate by suction. Once the resin had harden we carried out the observation / description of the poultices, both bySEM and through optical microscopy . In both cases, a rock / poultice slice had to be cut, in order to introduce it into the respective observation systems. In this way, the microscopic observation of the structure, as well as of the rock-poultice connection, were carried out, completing the textural and morphological characterization phase. The projection tests carried out with the “industrial” machine evidenced the lack of effectiveness of this equipment for its use inside a building given the amount of dust it generated. It was becoming necessary to create a prototype of a specific projection machine to be used in laboratorytests. In the second phase a small projection machine was created, which was achieved by the modification of a microabrasimeter. Arbocel® cellulose kneaded with water was used for both types of poultices. These two types are “ Handmade ” poultices, and “GunPoint Mix” poultices (we will call them “ GPM ”, they are producedby the use of compressed air). In this second phase, the suitability in the size of the substrate test tubes was tested, verifying that the 5x5x5 test tubes used were too small to adequately characterize the processes. We also used a sandstone (Alastruey stone) with very low porosity, that was later replaced in the final experiments by another sandstone (Stone from Uncastillo) that had a greater porosity. However, in this phase a set of actions were taken in order to evaluate the cleaning difficulty for each type of poultice. In the third phase the definitive tests were carried out, using test tubes of 10x10x5cm of pine wood, limestone from Calatorao, sandstone from Uncastillo and Campanil limestone whose characteristics are known [23]; eight test tubes of each type in total (tables 1 and 2). Table 2: Petrophysical characteristics of each individual test tube. Measurement methodologiesaccording to [22] © 2023 Global Journals Volume XXIII Issue II Version I 4 ( ) Global Journal of Human Social Science - Year 2023 C Poultices Generated Mechanically with Compressed Air: “Gunpoint Mix System” Characterization and Properties. Comparison with “Handmade” Poultices