Influence of aggregate type and chemical admixtures on frost resistance of lightweight mortars
Materiały konferencyjne
MNiSW
15
WOS
| Status: | |
| Autorzy: | Klimek Beata, Widomski Marcin K., Barnat-Hunek Danuta |
| Dyscypliny: | |
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| Rok wydania: | 2017 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Arkusze wydawnicze: | 0,5 |
| Język: | angielski |
| Numer czasopisma: | 1 |
| Wolumen/Tom: | 1866 |
| Numer artykułu: | 040017 |
| Strony: | 1 - 6 |
| Web of Science® Times Cited: | 2 |
| Scopus® Cytowania: | 3 |
| Bazy: | Web of Science | Scopus | Google Scholar |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | TAK |
| Nazwa konferencji: | 22nd International Meeting of Thermophysics (Thermophysics) and 4th Meeting of the Energy and Responsibility (EnRe) 2017 |
| Skrócona nazwa konferencji: | 22nd THERMOPHYSICS 2017 and 4th EnRe 2017 |
| URL serii konferencji: | LINK |
| Termin konferencji: | 12 września 2017 do 14 września 2017 |
| Miasto konferencji: | Terchova |
| Państwo konferencji: | SŁOWACJA |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The aim of studies presented in this paper covered analyses of type of lightweight aggregate as well as aeration and hydrophobic admixtures influence on absorbability and frost resistance of heat-insulating mortars applied in the energy-efficient construction. In the presented research, expanded perlite (EP) and expanded clay aggregate (ceramsite) were used as lightweight aggregates. The measurements of the basic mechanical and physical characteristics of tested mortars were performed, including, inter alia, compressive and flexural tensile strength, density, effective (open) and total porosity, absorbability, thermal conductivity as well as frost resistance after 25 cycles of freezing and thawing. Substitution of some part of sand fraction by the lightweight aggregates, expanded clay aggregate or perlite, resulted in changes in physical properties of the tested mortars. The observed decrease in density (specific weight), coefficient of heat transport and strength parameters were simultaneously accompanied by the increase in absorbability. Researches concerning frost resistance of mortars containing ceramsite and perlite showed the improved frost resistance of mortar utilizing perlite. Most of the tested mortars shoved satisfactory frost resistance, only samples of mortar containing ceramsite and aeration admixture were destroyed. The significant influence of aerating admixture on frost resistance of mortars was determined. Hydrophobic siloxanes addition failed to adequately protect the mortars against frost erosion, regardless the type of applied aggregate. |
