Algeopolymers

Exploring the Potential for Use of
Irish Residue and By-products into
Geopolymer Applications

Introduction and Objectives

Objectives of AlgeopolymersAlgeopolymers aims to illustrate the potential for an Irish value chain for the use of Irish bauxite residue in geopolymer applications.

Objectives and Targets• To review international state of art use of wastes (including residues) in geopolymer applications by secondary and primary research methods (survey of BRAVO industry).
• To push Ireland to the forefront in the area of raw materials processing technologies [Measurement: 1 key note speech]
• To result in higher economic viability and investment security of processing operations [Measurement: 1 proposed value chain and economic evaluation of geopolymers in the Irish construction sector and generation of Algeopolymer roadmap]

GeopolymersGeopolymers
are inorganic aluminosilicate polymers that form solid ceramic-like materials at near ambient temperatures. These materials have reasonable mechanical properties, good thermal stability > 1000 °C and the brittle failure typical of ceramics. Their low processing temperature makes them suitable for the same fabrication techniques used with thermosetting resins but which are not generally possible with ceramic materials, creating new possibilities for the manufacture of ceramic-like composite materials.

A typical application of geopolymers is to blend-in with Portland cement as a building material. However, geopolymers have even greater application potential as regenerable catalysts, membranes, and storage materials for toxic chemicals, as well as photoactive composites.

Classes of Geopolymers

Geopolymer cements to date are based on compositions involving: a. Slag-based geopolymer cement b. Rock-based geopolymer cement ( Irish mine use a mine tailings based cements to backfill and stabile the mine) c. Fly ash-based geopolymer cement d. Ferro-sialate-based geopolymer cement

Work Packages

Objective 1: State of the Art review of bauxite residue use in geopolymers

·State of the art review of wastes used in geopolymer applications including a creation of a database with process parameters listed where possible.
·Comparison of the Irish residue to that used in reported studies. Data on the Irish residue will be provided by Rusal and will be augmented with characterisation where required.

Objective 2: Primary Research and International Engagement

·Primary research: voluntary surveying of BRAVO partners for state of the art assessment of geopolymers based on residues in the market.
·International engagement with international laboratories

Objective 3: Irish Algeopolymer Roadmap

·Survey and workshop with the Irish construction sector, steering committee and relevant stakeholders to assess the potential for an Irish Algeopolymer value chain.
· Development of an Algeopolymer roadmap and next action steps required. This will involve a review of the European funding opportunities and the potential to apply to EIT KIC funded pilot action.

Algeopolymers Team

Lisa O’Donoghue

Lisa.ODonoghue@ul.ieMore

Éva Ujaczki

Eva.Ujaczki@ul.ieMore

Algeopolymers 
National Stakeholder Workshop on
19th September 2018 at 
Covanta Waste To Energy Facility, Dublin.

Download Workshop Agenda

Preamble The University of Limerick are undertaking an EPA funded project called Algeopolymers. The Algeopolymers project is researching the potential for Irish wastes to be used in geopolymer cement type applications. This national stakeholder workshop forms part of the activities of the project to explore synergies in the Irish value chain.