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The rheological properties of fresh concrete and mortar with high calcium fly ash in the variable temperatures



Author(s): J. Golaszewski, A. Kostrzanowska, G. Cygan
Paper category: Conference
Book title: Rheology and processing of Construction Materials – 7th RILEM International Conference on Self-Compacting Concrete and 1st RILEM International Conference on Rheology and Processing of Construction Materials
Editor(s): Nicolas Roussel and Hela Bessaies-Bey
Print ISBN: 978-2-35158-137-7
e-ISBN: 978-2-35158-138-4
Publisher: RILEM Publications SARL
Pages: 9-16
Total Pages: 8
Language: English


Abstract: 
The object of the analysis was to predict the rheological properties of fresh concrete made on cements with High Calcium Fly Ash (HCFA) and other mineral additives such as silica fly ash, limestone and slag based on the properties of the mortar. The composition of mortar was designed in three ways. In the first way the mortar was treated as a product of coarse aggregate surface area and thickness calculated paste coating. In second sequence mortar was designed as a similar composition to the composition of the fresh concrete without adjustments. In the third stage mortar was designed similar to the composition of the fresh concrete with the adjustment of the volume of water calculated from the condition of water demand for consistency. Rheological parameters of mortars and cement paste were determined using a rheometer Viskomat NT and for the fresh concrete using the Viskomat XL in the configuration different temperatures: 10°C, 20°C and 30°C.


Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00