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Earth, Gypsum and Cement-Based Plasters Contribution to Indoor Comfort and Health
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Santos, T., Faria, P. and Gomes, M. I. (2021) Earth, Gypsum and Cement-Based Plasters Contribution to Indoor Comfort and Health. In: RSCC2020 - 3rd RILEM Spring Convention and Conference, Guimarães, Portugal. [Conference or Workshop Item]
Full text not available from this repository.Abstract (in English)
Indoor air quality is important for comfort and health of buildings inhabit-ants. The use of environmentally friendly building materials is also very im-portant for sustainable and green buildings. In the present study, mechanical characteristics of five mortars were comparably analyzed: two unstabilized earth mortars, one earth-air lime mortar, one cement mortar and other gyp-sum mortar. The earthen plasters are nowadays commonly applied unpaint-ed. The gypsum plaster system is composed by the base mortar and a finish-ing layer; it can be applied unpainted or painted. The cement plaster is gen-erally finished with a paint system. Therefore, the adsorption and desorption capacities were assessed for all the plasters and the influence of the paint system was evaluated for the cement and gypsum plasters. Results show that the earth mortar stabilized with air lime presents lower mechanical strength, in comparison to all other mortars, and lower adsorption capacity, similar to the gypsum system. The unstabilized earth plasters present high adsorption capacity, in comparison to the cement and gypsum plasters. The paint sys-tem does not have significant influence on the adsorption capacity of the gypsum plaster but reduced that capacity on the cement plaster. These re-sults demonstrate the important contribution that unstabilized earth plasters may provide as passive indoor hygrothermal buffers, in comparison to other plasters, thus to comfort and occupants health.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Authors: | Authors Email Santos, T. UNSPECIFIED Faria, P. paulina.faria@fct.unl.pt Gomes, M. I. UNSPECIFIED |
| Languages: | English |
| Keywords: | Air lime; Clay; Desorption; Sorption Mechanical strength; Mortar |
| Subjects: | C.ARCHITECTURE > 04. Building materials F.SCIENTIFIC TECHNIQUES AND METHODOLOGIES OF CONSERVATION > 06. Analysis of materials F.SCIENTIFIC TECHNIQUES AND METHODOLOGIES OF CONSERVATION > 32. Materials testing |
| Volume: | 32 |
| ISSN: | 2211-0844 |
| Depositing User: | Prof. Paulina Faria |
| Date Deposited: | 31 Mar 2022 10:44 |
| Last Modified: | 31 Mar 2022 10:44 |
| URI: | https://openarchive.icomos.org/id/eprint/2604 |
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