Shrinkage of geopolymer binder at different stages of its structure formation

Abstract

Shrinkage of geopolymer binder at different stages of its structure formation

Eroshkina N.A., Korovkin M.O.

Incoming article date: 06.06.2016

The paper describes influence of the specific surface of the slag additive and silica module of hardening activator of geopolymer binder based on the crushed screenings of granite on shrinkage deformation of mortar component of concrete. It was found that shrinkage of geopolymer binder is most intensively occurs at the early stages of structure formation. Particular importance for the structure formation of geopolymer concrete has shrinkage at the stage of setting and initial strength development that need to be considered by appointment of heat and humidity treatment regimes for factory production of products and structures based on geopolymer concrete.

Keywords: geopolymer, hardening, shrinkage, structure formation, slag, activator curing, grinding waste of crushed granite