Metakaolin

Engineering

Civil engineering

Slag (welding)

Composite material

Nanotechnology

Geopolymer cement

Materials science

Demolition waste

Building material

Geopolymer

Characterization (materials science)

Demolition

Aggregate (composite)

Cement

Waste management

Fly ash

Construction and Building Materials

The paper presents the assessment of metakaolin-slag-potassium-silicate geopolymer mixtures containing concrete and fired clay aggregates from Construction and Demolition Waste (CDW). An extensive characterization was carried out from a mechanical and physical standpoint, aimed at exploring their potential as a building material and their suitability for exploitation at industrial level. Based on the obtained experimental results, geopolymers with CDW showed promising properties for use in building elements even with 50% of aggregates and more, although further aspects need dedicated investigations.

Assessment of geopolymers with Construction and Demolition Waste (CDW) aggregates as a building material