Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Durability of mortars made with sand washing waste
HighlightsAn industrial waste emanating from sand washing, rich in kaolinite, is used as a pozzolanic material.Durability of mortars containing 0%, 10% and 30% of calcined waste is carried out in water, in HCl and Na2SO4 solutions.Durability of mortars is evaluated by weight loss, expansion test, compressive strength and XRD analyses.In the HCl solution, the decalcification of CSH and the dissolution of portlandite are observed.Sulfates react with portlandite to produce gypsum and expansive ettringite.
AbstractThe industrial waste emanating from sand washing, rich in kaolinite, was used as a pozzolanic material. The durability of mortars containing 0%, 10% and 30% of calcined waste was carried out in water, in HCl and Na2SO4 solutions. In the HCl solution, the decalcification of CSH and the dissolution of portlandite were observed. Sulfates react with portlandite to produce gypsum and expansive ettringite. The durability of mortars evaluated by weight loss, expansion test, compressive strength and XRD, showed that mortars containing 10% of waste develop the highest durability in both solutions thanks to the consumption of portlandite by the pozzolan.
Durability of mortars made with sand washing waste
HighlightsAn industrial waste emanating from sand washing, rich in kaolinite, is used as a pozzolanic material.Durability of mortars containing 0%, 10% and 30% of calcined waste is carried out in water, in HCl and Na2SO4 solutions.Durability of mortars is evaluated by weight loss, expansion test, compressive strength and XRD analyses.In the HCl solution, the decalcification of CSH and the dissolution of portlandite are observed.Sulfates react with portlandite to produce gypsum and expansive ettringite.
AbstractThe industrial waste emanating from sand washing, rich in kaolinite, was used as a pozzolanic material. The durability of mortars containing 0%, 10% and 30% of calcined waste was carried out in water, in HCl and Na2SO4 solutions. In the HCl solution, the decalcification of CSH and the dissolution of portlandite were observed. Sulfates react with portlandite to produce gypsum and expansive ettringite. The durability of mortars evaluated by weight loss, expansion test, compressive strength and XRD, showed that mortars containing 10% of waste develop the highest durability in both solutions thanks to the consumption of portlandite by the pozzolan.
Durability of mortars made with sand washing waste
Kallel, Taheni (Autor:in) / Kallel, Abderrazek (Autor:in) / Samet, Basma (Autor:in)
Construction and Building Materials ; 122 ; 728-735
20.06.2016
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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