A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The sulphate resistance of slag blended cement mortars and pastes at low temperatures
The objective of this study is to identify the effect of ground granulated blast furnace slag (ggbs) on durability of pastes and mortars exposed to sodium sulphate solution in comparison to mortars containing traditional Portland cement. Many authors concluded that ggbs could increase the sulfate resistance of cement. The results of our research will give answer on the following question: Is the sulphate resistance of cements with ggbs similar to Portland cements especially at low temperatures (0 deg C to 5 deg C)? Special attention is focused on the conditions under which thaumasite can be formed in sodium sulfate attack at low and ambient temperature. Four types of cement were used in the experiment: CEM I 32,5R, CEM II/B-S 52,5N, CEM II/B-S 32,5R and CEM III/A 32,5N with 10 and 15% CaCO3 addition. All cements used in 10% and 15% CaCO3 were prepared in laboratory scale. Results of research will show practical meaning of the ggbs as addition to cement in sulphate corrosion especially at low temperatures. The compressive and flexural strength, linear changes, XRD and SEM-EDS studies will be presented in the article.
The sulphate resistance of slag blended cement mortars and pastes at low temperatures
The objective of this study is to identify the effect of ground granulated blast furnace slag (ggbs) on durability of pastes and mortars exposed to sodium sulphate solution in comparison to mortars containing traditional Portland cement. Many authors concluded that ggbs could increase the sulfate resistance of cement. The results of our research will give answer on the following question: Is the sulphate resistance of cements with ggbs similar to Portland cements especially at low temperatures (0 deg C to 5 deg C)? Special attention is focused on the conditions under which thaumasite can be formed in sodium sulfate attack at low and ambient temperature. Four types of cement were used in the experiment: CEM I 32,5R, CEM II/B-S 52,5N, CEM II/B-S 32,5R and CEM III/A 32,5N with 10 and 15% CaCO3 addition. All cements used in 10% and 15% CaCO3 were prepared in laboratory scale. Results of research will show practical meaning of the ggbs as addition to cement in sulphate corrosion especially at low temperatures. The compressive and flexural strength, linear changes, XRD and SEM-EDS studies will be presented in the article.
The sulphate resistance of slag blended cement mortars and pastes at low temperatures
Sulfatwiderstand von Schlacken, die mit Zementmörteln und Zementpasten bei niedrigen Temperaturen gemischt wurden
Malolepszy, Jan (author) / Mroz, Radoslaw (author)
Silicates Industriels ; 74 ; 315-320
2009
6 Seiten, 6 Bilder, 2 Tabellen, 22 Quellen
Article (Journal)
English
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