Geopolymers: The route to eliminate waste and emissions in ceramic and cement manufacturing

Країна: Австрія

Місто: Hernstein

Тези до: 10.01.2015

Дати: 24.05.15 — 29.05.15

Е-мейл Оргкомітету: cristina.leonelli@unimore.it

Організатори: ECI

 

Scope of the Conference:  The main aim of this conference is to provide scientific and industrial contributions describing technical solutions for applications of geopolymers thus leading progressively towards eliminating waste and minimizing emissions in ceramic and cement manufacturing. Those who have undertaken a significant research effort in this field will be invited from all over the world to join the conference program. The success of the conference will represent a step forward for the global material needs of society with significantly reduced ecological impacts.

Goals of the conference:  Synopsis:  Geopolymers are a class of inorganic polymers formed by the reaction between an aqueous alkaline silicate solution and an aluminosilicate source. These materials have an amorphous 3-dimensional structure that gives geopolymers properties which make them an ideal substitute for Ordinary Portland Cement (OPC) in a whole range of applications. There are also novel materials interfacing between ceramics and inorganic polymers.

Many by-products produced by industry can be used as feedstock for geopolymers, including fly ash, mine tailings and bauxite residues.

Variations in the ratio of aluminum to silicon, and alkali to silicon, produce geopolymers with different physical and mechanical properties. In general these materials have been shown to possess higher compressive and tensile strength when compared to OPC, in addition to impressive resistance to acid corrosion and superior heat and fire resistance, similar to ceramics.

Many scientists have worked to demonstrate the environmental benefits derived from the use of geopolymers to replace OPC cements in concrete structures and ready-mix applications. These environmental benefits are:

  • significant reduction of greenhouse gas emissions;
  • utilization of large volumes of industrial by-products and urban derived ashes;
  • increased resource efficiency by producing building products with longer service life.

Recently the cold route to prepare ceramics via alkali activation has been put alongside the sol-gel process with comparatively lower costs.

Веб-сторінка конференції: http://www.engconf.org/conferences/chemical-engineering/geopolymers/