- Tytuł:
- Rheological properties of building gypsum fresh pastes
- Autorzy:
- Klin, S.
- Powiązania:
- https://bibliotekanauki.pl/articles/241355.pdf
- Data publikacji:
- 2005
- Wydawca:
- Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
- Tematy:
-
gypsum
gypsum plaster
rheology
plastic viscosity
yield stress - Opis:
- The study presents results of laboratory tests of rheological properties of fresh pastes made of building gypsum at a wide range of water-gypsum ratios W/G = 0.4-1.5. The tests were carried out in a rotary-type viscosimeter RHEOTEST-2. The rheograms characterize dynamic changes in shearing stress τ of the gypsum pastes in the course of setting. By the addition of setting retarders rheostable gypsum pastes were obtained for the period of the experiments, which enabled the taking of rheograms of the shearing stress t, described by analytical functions based on Bingham's and Herschel-Bulkley's plastic bodies. There were determined relations between the yield stress τ0 as well as plastic viscosity ηpl and the W/G ratios. The results have considerable heuristic and practical values for rheology of fresh gypsum pastes.
- Źródło:
-
Archives of Hydro-Engineering and Environmental Mechanics; 2005, 52, 3; 265-282
1231-3726 - Pojawia się w:
- Archives of Hydro-Engineering and Environmental Mechanics
- Dostawca treści:
- Biblioteka Nauki