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Title: | A ‘sandwich’ specimen preparation and testing procedure for the evaluation of non-structural injection grouts for the re-adhesion of historic plasters |
Authors: | Pasian, Chiara Piqué, Francesca Jornet, Albert Cather, Sharon |
Keywords: | Grouting (Soil stabilization) Adhesion Soil absorption and adsorption Water -- Analysis -- Research Soil conservation Plaster Plastering |
Issue Date: | 2019 |
Publisher: | Taylor & Francis Inc. |
Citation: | Pasian, C., Piqué, F., Jornet, A., & Cather, S. (2019). A ‘sandwich’specimen preparation and testing procedure for the evaluation of non-structural injection grouts for the re-adhesion of historic plasters. International Journal of Architectural Heritage, 15 (3), 455-466 |
Abstract: | Non-structural injection grouting aims to stabilise delaminated plaster by introducing in the void, typically between delaminated plaster layers, a compatible adhesive material with bulking properties (the injection grout). Injection grout formulations are firstly tested in the laboratory to determine their performance characteristics including their physical-mechanical compatibility with the original materials (plaster or other building materials). However, laboratory tests on grouts are often not sufficiently representative of actual cases in which the grout sets between two plaster layers. This problem is particularly significant when water vapour permeability, capillary water absorption and adhesion need to be assessed. A study was conducted on the development of a ‘sandwich’ system (plaster-grout-plaster) to better simulate the real situation. This paper describes a new methodology for such specimen preparation and the adapted procedures for laboratory testing. The results are discussed comparing them with those obtained from standard specimen preparation and testing procedure. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/105555 |
Appears in Collections: | Scholarly Works - FacBenCBH |
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