Geopolymer binders from igneous rocks and concretes based on them

The influence of the composition of a geopolymer binder based on some igneous rocks and of the curing conditions on its properties was examined. Addition of blast furnace slag in the amount of 10-25% to the mineral-alkali binder provides a hydraulic binder with strength of up to 100 MPa. The developed binders make it possible to obtain concrete with structural strength of 20-40 MPa, the shrinkage of 0.4-1.0 mm/m and a modulus of 15-35 GPa.

Author: N.A. Eroshkina, M.O. Korovkin

Section: Science and production

Keywords: binding materials, geopolymers, alkali activation, blast furnace slag, concrete