Most of the reports acknowledged that alkaline activator is a mixture of sodium hydroxide (NaOH) in flakes of 98% purity, and sodium silicate (Na 2 SiO 3). Usually, a sodium silicate solution is …

Sodium hydroxide (NaOH) and sodium silicate (Na 2 SiO 3, water glass) are used as alkaline activators to activate geopolymers. NaOH dissolves aluminosilicate, while Na 2 SiO 3 supports …

Alkali-activated aggregates are produced by introducing alkaline solutions as binding agent during pelletization instead of water, among which sodium hydroxide (NaOH) and sodium silicate (Na …

Jun 9, 2023 · Sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) are the most commonly used alkali activators for the preparation of AAM. It is generally accepted that the AAM …

Jul 1, 2023 · Compared to other sodium system activators, NA-activated AAM is characterized by fast solidification and high strength, which makes it a representative activator for AAM and has …

The alkaline activator solution is another pillar of the geopolymerization process, playing an important role in the formation of crystalline structures of Si and Al, which is typically a …

Apr 3, 2024 · Sodium silicate is the most important alkaline activator used to improve durability and strength. The C-single bond S-single bond H-gel formed by the reaction of sodium silicate …

The main alkaline activator was the mixture of sodium silicate and sodium hydroxide, which was controlled by the silicate modulus and Na 2 O content. Therefore, it is essential to investigate …

Sodium hydroxide (NaOH) pellets and sodium metasilicate pentahydrate (Na 2 SiO 3.5H 2 O), a type of sodium metasilicate, were used as alkaline activator (AA). The result showed that the …

Nov 11, 2017 · The alkaline activator, typically sodium hydroxide (NaOH), sodium silicate (often used in practice in the form of Na 2 O·nSiO 2 or its mix with NaOH), is the well-known method …