Henk Nugteren

TL;DR: In this article, fly ashes sourced from European pulverised coal burning power plants (from Spain, The Netherlands, Italy and Greece) were characterised in terms of their chemical composition, mineralogy and physical properties.

TL;DR: Fly ash-based geopolymers were found to immobilize a number of trace pollutants, but the leachable levels of elements occurring in their oxyanionic form were increased after geopolymerization, suggesting that an optimal dosage, synthesis and curing conditions are essential in order to obtain a long-term stable final product that ensures an efficient physical encapsulation.

TL;DR: In this article, the authors used natural zeolite (clinoptilolite) from huge deposit near Beli Plast, Bulgaria, for preparation of geopolymers.

TL;DR: This study presents the solidification/stabilisation and immobilisation of lead smelting slag by its incorporation in coal fly ash - blast furnace slag based geopolymers and explores the use of a spent aluminium etching solution (AES) as geopolymer activator instead of the commonly used silicate solutions.

TL;DR: In this paper, healing agent particles are coated with geopolymers following different mixture recipes, and they are incorporated in cement paste in order to determine the feasibility of application of the particles in concrete.