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Design, synthesis and analysis of ecological mortar for application in buildings

Syntichakis Stavros-Marios

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Summary

This thesis presents an experimental investigation that examines the feasibility of producing eco-friendly coatings with thermal and moisture insulation properties, which can be efficiently applied in monuments or other structures. The produced mortar mixtures include recyclable materials that are non-hazardous for both the environment and human health. The compositions studied consist of expanded perlite and natural hydraulic lime (NHL 3.5), combined with a pozzolanic material to fulfill the requirements regarding compressive strength and plasticity of the mortar.Ecological solutions, such as the utilization of eco-friendly mortars, have emerged as a crucial issue for environmental protection and the improvement of the quality of life of the population. The adoption of these mortars contributes to safeguarding the environment as well as the well-being of its inhabitants. Sustainable raw materials, such as perlite and hydraulic lime, are more environmentally friendly and help reduce the carbon dioxide footprint. Ecological alternatives often offer superior thermal insulation and durability, thereby reducing the need for heating and cooling. This contributes to decreased energy consumption. In contrast to someconventional mortars that contain harmful substances potentially released during use or disposal, ecological mortars are safe and pose no threat to human health. Although the initial investment in eco-mortars may be higher, their durability and reduced maintenance requirements ultimately result in lower life-cycle costs. Overall, the use of ecological mortars contributes to environmental protection, reduction of energy consumption, and enhanced economic efficiency.For the development of optimal ecological mortars, initially existing formulations containing the selected materials were studied to understand their potential and evolution both at the research level and in engineering practice. Subsequently, new mixtures were developed and tested in the laboratory, which were characterized by their compositional simplicity, low cost, and applicability on a large scale. The results proved very promising for the future development and production of novel eco-materials that can be successfully applied in the energy upgrading ofbuildings.

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