2 documents found, page 1 of 1
Increasing the reaction kinetics of alkali-activated fly ash binders for stabil...
Rios, S; Cristelo, N; Miranda, Tiago F. S.; Araújo, Nuno Miguel Faria; Oliveira, J. M.; Lucas, EThe paper addresses several options to improve the reaction kinetics of alkali-activated low-calcium fly ash binders for soil stabilisation in road platforms. For that purpose, an experimental programme was established to assess the strength evolution, with time, of different binders, based on ash, lime, sodium chloride and alkali solutions, applied in the stabilisation of a silty sand. The tests included uncon...
Quantitative and qualitative assessment of the amorphous phase of a Class F fly...
Cristelo, N,; Tavares, P.; Lucas, E; Miranda, Tiago F. S.; Oliveira, Daniel V.A detailed analysis of the effects of mechanical activation and temperature on the dissolution process of a Portuguese Class F fly ash was developed. The evolution of the silica and alumina dissolved and transferred to the aluminosilicate gel was characterised. Quantification of bulk vitreous mass was performed using X-ray diffraction, together with the identification of the most relevant amorphous phases disso...