Adhesion of reinforcing bars to the alkaline matrix of slag-alkali concretes
Abstract
Adhesion of reinforcing bars to the alkaline matrix of slag-alkali concretes
Incoming article date: 10.07.2024Slag-alkali binder (SAB) is obtained by polymerization of granulated blast-furnace slag (aluminosilicate component) ground in a ball mill with an alkali activator, resulting in an environmentally friendly hydraulic polymer binder. Slag-alkali concrete (SAB) based on SAB has become an alternative to traditional concrete based on portland cement (PTC). Reinforcement bars in combination with SAB make it possible to obtain concrete structures with high adhesion properties to reinforcement compared to concrete based on portland cement. However, due to differences in the production process of SAB, there are obvious differences in technical properties, including adhesion characteristics. However, proper standardization is needed for its production and operational testing to limit contradictory results in the laboratory and on the construction site.
Keywords: metallurgical waste, granulated slag, crushing, chemical activation, reinforcement, adhesion, strength