Applications
Introduction: developments and applications in geopolymer
Materials for the Third Millennium Think Geopolymer and Geosynthesis! The last few years have seen spectacular technological progress in the development of geosynthesis and geopolymeric applications. New state-of-the-art materials designed with the help of geopolymerisation reactions are opening up new applications and procedures, and transforming ideas that have been taken for granted in inorganic and [...]
Ceramics for mold, tooling, high-tech
Mold, high-tech tooling for Carbon composites Aluminum superplastic Titanium Pechiney developed Geopolymer refractory materials for safe casting of corrosive aluminum/lithium (Al/Li) alloys in liquid state. Source: Pechiney patent Since 1986, the French aeronautic company Dassault Aviation is using geopolymer mold and tooling in the development of the Rafale fighter plane. source: Dassault Aviation public research [...]
Fire proof, heat resistant composites
Since 1985, French and English nuclear power stations equipped theirs plants with air filters produced by Sofiltra-Camfil, a French company, in which joints and dust free sealants are made of geopolymer, providing a safety cover up to 500°C. Source: Sofiltra-Camfil patent Geopolymer insure thermal protection of industrial buildings and facilities up to 1200°C. Hüls AG [...]
Potential utilization for geopolymer composites materials
Giving Survivors More Time to Escape A carbon-epoxy aerospace composite (left) is burning while a carbon-geopolymer composite (right) still resists a 1200°C fire. When a plane crash-lands and catches fire, half the people who survive the impact may not get out in time. That is because the plastics in the cabin—the seat cushions, carpeting, walls [...]
GEO-COMPOSITE: fire resistant matrix
Fire resistant matrix materials for use in aircraft composites and cabin interior applications The Federal Aviation Administration (F.A.A.), USA, has recently initiated a research program to develop low-cost, environmentally-friendly, fire resistant matrix materials for use in aircraft composites and cabin interior applications. The flammability requirement for new materials is that they withstand a 50 kW/m2 [...]
GEOPOLY-THERM: fireproof composite panels
Geopolymer Composite Applications, Fireproof panels, Fireproof Decoration The patented GEOPOLY-THERM technology is based on the use of geopolymer binders. The effects of fires aboard vessels have been demonstrated as a result of collision between ships and ferries during peace time, and by experiences of the British Navy in the Falkland Islands and the American Navy [...]
GEO-STRUCTURE: repair and retrofit buildings with fibers
External repair and structural retrofit for aging infrastructure and aging buildings Infrastructure in the United States such as bridges are degrading due to the corrosion of steel-reinforced concrete by salty water and deicing compounds. A relatively new and little known repair method for concrete and brick structures, consists of externally bonding flexible sheets of fiber [...]
Geopolymer cement
There is often confusion between the meaning of the terms “cement” and “concrete”. A cement is a binder whereas concrete is the composite material resulting from the addition of cement to stone aggregates. Cement is sold to companies that make concrete. Geopolymer cement is often mixed up with alkali-activated slag developed since 1956 in Eastern [...]
Geopolymer Cement for mitigation of Global Warming
Up to 90% reduction of CO2 Greenhouse Gas emission during cement manufacture Professor J. Davidovits started working on CO2 emissions mitigation as earlier as 1990, at PennState Materials Research Laboratory, Pennstate University, USA. Unfortunately, American Agencies (DOE and EPA) stated that this was not an important issue and both institutions declined to support research proposals. [...]
Geopolymer cement for storage of toxic and radioactive wastes
GEOpolymeric Cements for Innocuous Stabilisation of Toxic EleMents Geosynthesis of Rock-based Geopolymer cements was the objective of the European multidisciplinary BriteEuram industrial research project GEOCISTEM. The project titled cost effective GEOpolymeric Cements for Innocuous Stabilization of Toxic EleMents, in short GEOCISTEM, started on Jan. 1994 and has been completed on June 1997. In J. Davidovits’ [...]
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