Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of superplasticizer and shrinkage-reducing admixtures on alkali-activated slag pastes and mortars
AbstractThis paper shows how several superplasticizers (polycarboxylates, vinyl copolymers, melamine and naphthalene-based) and shrinkage-reducing (polypropylenglycol derivatives) admixtures affect the mechanical and rheological properties and setting times of alkali-activated slag pastes and mortars. Two activator solutions, waterglass and NaOH, were used, along with two concentrations—4% and 5% of Na2O by mass of slag. All admixtures, with the exception of the naphthalene-based product, lost their fluidifying properties in mortars activated with NaOH as a result of the changes in their chemical structures in high alkaline media. The difference in the behaviour of these admixtures when ordinary Portland cement is used as a binder is also discussed in this paper.
Effect of superplasticizer and shrinkage-reducing admixtures on alkali-activated slag pastes and mortars
AbstractThis paper shows how several superplasticizers (polycarboxylates, vinyl copolymers, melamine and naphthalene-based) and shrinkage-reducing (polypropylenglycol derivatives) admixtures affect the mechanical and rheological properties and setting times of alkali-activated slag pastes and mortars. Two activator solutions, waterglass and NaOH, were used, along with two concentrations—4% and 5% of Na2O by mass of slag. All admixtures, with the exception of the naphthalene-based product, lost their fluidifying properties in mortars activated with NaOH as a result of the changes in their chemical structures in high alkaline media. The difference in the behaviour of these admixtures when ordinary Portland cement is used as a binder is also discussed in this paper.
Effect of superplasticizer and shrinkage-reducing admixtures on alkali-activated slag pastes and mortars
Palacios, M. (Autor:in) / Puertas, F. (Autor:in)
Cement and Concrete Research ; 35 ; 1358-1367
13.10.2004
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 2005
Adsorption of superplasticizer admixtures on alkali-activated slag pastes
| Online Contents | 2009
Adsorption of superplasticizer admixtures on alkali-activated slag pastes
| Online Contents | 2009