Abstract
The main message of the article is an analysis of the impact of: the aerating agent, cement, polymer additives, cellulose ethers, and perlite on renovation plaster porosity. To determine the impact, an orthogonal design of experiment proposed by Taguchi was used. The results show that the air content in the mixture does not necessarily indicate high porosity of the hardened mortar and vice versa. This is because not all of the factors analyzed in this experiment have significant impacts on the output. In terms of air content in fresh mortar, cement and aerating agent are significant factors. In terms of porosity in fresh mortar, cement, aerating agent, perlite and cellulose ethers are significant factors. Additionally, the studies are presented to explain the impacts of these ingredients.
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