Geopolymer Cements

Geopolymer cements are two-component binders consisting of a reactive solid component and an alkaline activator. During the reaction in alkaline media a three-dimensional inorganic alumosilicate polymer network is built, which is responsible for the relatively high strength of the hardened product. For a geopolymeric polycondensation suitable materials are alumosilicates which can be of natural (metakaolin, natural pozzolana) or industrial (fly ashes, granulated blast furnace slags) origin. Until now, geopolymers have been produced only for demonstration purposes and have only been used in non structural applications, e.g. paving.

Development Status Products
Demonstration
Cement

Geopolymer CementsCosts & Benefits

Parent Process: Low-Carbon or Carbon-Negative Alternatives to Portland Cement
Energy Savings Potential

Thermal and electricity saving potential depends strongly on energy demand for activator production

CO2 Emission Reduction Potential

Fro evergy ton clinker substituted by Geopolymer Cement, approximately 0.52 ton of process related CO2 emissions can be avoided. 

Costs

Geopolymer Cements Publications

Development of State of the Art Techniques in Cement Manufacturing: Trying to Look Ahead

The report represents the independent research efforts of the European Cement Research Academy (ECRA) to identify, describe and evaluate technologies which may contribute to increase energy efficiency and to reduce greenhouse gas emissions from global cement production today as well as in the medium and long-term future. 

Page Number: 

82-84