Investigation of the efficiency of different solutions for waterproofing unfired clay elements with hemp
Investigation of the efficiency of different solutions for waterproofing unfired clay elements with hemp

Author(s): Marius MÂRŢ, Alexandrina-Elena Andon
Subject(s): Economy, Fine Arts / Performing Arts, Architecture, Energy and Environmental Studies, Green Transformation
Published by: INCD URBAN-INCERC
Keywords: adobe; water absorption; ecological;
Summary/Abstract: Unfired clay (adobe elements) has been used since ancient times as a building material that presents many ecological and energy-efficient advantages, but which has a high vulnerability to the action of water, which can lead to loss of strength and rapid degradation of the buildings. The present study analyzes different solutions for protecting unfired clay elements against water absorption, by applying recipes based on lime paste, sodium bicarbonate, boiled linseed oil and rabbit glue. Several combinations and protective layers were tested, evaluated by measuring water absorption at different time intervals. The results revealed a significant reduction in water permeability, especially in the case of treatments that combined the effects of pore dispersion with their filling and the creation of a waterproofing film. These solutions can contribute to increasing the durability of unfired clay buildings, while maintaining the ecological benefits of the material.

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