Hydrophobisation of mortars containing waste polyurethane foam
Materiały konferencyjne
MNiSW
15
WOS
| Status: | |
| Autorzy: | Barnat-Hunek Danuta, Duda Sylwia, Garbacz Monika, Łagód Grzegorz |
| Dyscypliny: | |
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| Rok wydania: | 2018 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 163 |
| Numer artykułu: | 4006 |
| Strony: | 1 - 8 |
| Web of Science® Times Cited: | 8 |
| Scopus® Cytowania: | 9 |
| Bazy: | Web of Science | Scopus | Compendex | DOAJ | Chemical Abstracts Service (CAS) |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | TAK |
| Nazwa konferencji: | 8th Scientific-Technical Conference on Material Problems in Civil Engineering |
| Skrócona nazwa konferencji: | MATBUD’2018 |
| URL serii konferencji: | LINK |
| Termin konferencji: | 25 czerwca 2018 do 27 czerwca 2018 |
| Miasto konferencji: | Kraków |
| Państwo konferencji: | POLSKA |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Otwarte czasopismo |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 15 czerwca 2018 |
| Abstrakty: | angielski |
| This paper investigates the physical and mechanical properties of mortars modified with waste polyurethane foam (WPF) and the influence of hydrophobising agents on the physical characteristics. The sand was substituted with WPF (2-4 mm grain size) in the mortars which consisted of 5, 10 and 15% of foam, respectively. The contact angle of lightweight mortars was determined (θw) in the function of time, prior to and after the frost resistance test. The surface free energy characterizing the wettability and adhesion of mortars under normal conditions and following frost erosion was calculated with Neumann’s method based on the obtained data. The structure of mortars, adhesion of lightweight aggregate to cement paste and the structure of thin hydrophobic film were demonstrated by means of scanning electron microscopy. The mortars subjected to hydrophobisation process revealed a slight mass change caused by freezing and thawing processes: 0.1% for methyl silicone resin, 2.1% for alkyl-alkoxy-silane, and 9.2% for the samples which were not hydrophobized. On average, the contact angle of the standard mortars was 3 times lower than the one of hydrophobic material. The best results illustrating the efficiency of hydrophobisation were obtained for methyl silicone resin. |
