Inscriere cercetatori

Site nou !

Daca nu va puteti recupera parola (sau aveti alte probleme), scrieti-ne la pagina de contact. Situl vechi se gaseste la adresa old.ad-astra.ro

Facebook

Surface phenomena in aqueous inorganic systems with plasticizer content

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Ionela Carazeanu, Maria Georgescu, E. Chirila

Editorial: Revista de Chimie, 54(8), p.681-684, 2003.

Rezumat:

This paper presents information about the adsorption of some plasticizer admixtures like calcium lignosulphonate, melamine sulphonate formaldehyde and naphthalene sulphonate formaldehyde condensate in cement – water disperse systems, cement having different mineral compositions. It is discussed the electrokinetic potential of related inorganic liant suspensions as well. The experimental determinations showed an important effect of the aluminate and ferrite aluminate phases of the cement for the adsorption of all considered plasticizers. The intensity of the phenomenon decreased in the same time with the diminution of cement content in 1C3A+C4AF. The adsorption capacity of considered plasticizers decreases in the FLUBET„_VIMC„_LSC series in correlation with their compositional and structural characteristics.

Cuvinte cheie: cement, plasticizer, adsorption, hydration, zeta potential