Abstract
The contribution describes an experimental programme on durability assessment using the accelerated ageing of an outer wall component consisting of plasterboard support, an external thermal insulation composite system (ETICS) in polystyrene and a cladding that was realised half with natural stone and the other half with cast stone. The sample was placed in front of the climatic chamber by means of a special frame, in the so-called door configuration. During the accelerated ageing, this sample was simultaneously monitored over time using temperatures probes and flowmeter tests in order to evaluate the decay of the thermal performance over time. The experimental research was conducted with the aim of assessing the decay in thermal performance of an ETICS covered with artificial stone, comparing it with a similar stratigraphy but with a natural stone cladding.
Highlights
European economies depend on natural resources, but if current patterns of resource use are maintained in Europe, environmental degradation and depletion of natural resources will continue
Depending on the desired effect, the artificial stone can be laid with or without joints and the product for grouting is available in five different colours and in two granulometries (Table 1). This artificial stone was used as a finishing layer for the thermal insulation system that was created using EPS 8-cm-thick panels, glued onto a plasterboard support by means of specific fibrate cement-based adhesive, used as a filler on two layers to allow for the positioning of the 160 g/m2 glass fibre alkali-resistant mesh; to allow comparison with the natural stone use, the same stratigraphy was realised with a natural stone coating, and the sample placed at the door of a climatic chamber was divided into two portions: one was coated with artificial stone and the other one with natural stone
The surface temperature on the cast stone showed smaller variations in absolute values than the natural stone, demonstrating the fact that the thermal conductivity of the artificial stone was less than the natural stone one
Summary
European economies depend on natural resources, but if current patterns of resource use are maintained in Europe, environmental degradation and depletion of natural resources will continue. Depending on the desired effect, the artificial stone can be laid with or without joints and the product for grouting (a two-component lightened mortar) is available in five different colours and in two granulometries (fine-grained, 0/3 mm, or coarsegrained, 3/8 mm) (Table 1) This artificial stone was used as a finishing layer for the thermal insulation system that was created using EPS 8-cm-thick panels, glued onto a plasterboard support by means of specific fibrate cement-based adhesive, used as a filler on two layers to allow for the positioning of the 160 g/m2 glass fibre alkali-resistant mesh; to allow comparison with the natural stone use, the same stratigraphy was realised with a natural stone coating, and the sample placed at the door of a climatic chamber was divided into two portions: one was coated with artificial stone and the other one with natural stone.
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