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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 [...]
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 [...]
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 [...]
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 [...]
Technical Data Sheet
Technical Data Sheet for Geopolymeric cement type (Potassium, Calcium) – Poly(sialate-siloxo) / (K,Ca) – (Si-O-Al-O-Si-O-), Si:Al=2:1 Further details in Davidovits’ book, GEOPOLYMER Chemistry & Applications, Part III, Properties, Chapters 15 to 18, GEOCISTEM , GLOBAL WARMING, and also previous papers in the Geopolymer Library. Tested on standard sand mortar prisms: setting: 10 hours at -20°C [...]
Innovation and further researches
Prof. Joseph Davidovits presents the road map for the next couple of years on geopolymer science innovation and research, at the 2nd International Congress on Ceramics, Verona, Italy, July 4th, 2008. Watch the video on Vimeo. There is a great need for innovation and therefore further research must be carried out. We have listed below [...]
#17: Develoment and properties of low-calcium fly ash-based geopolymer concrete
Curtin Research Report on Fly Ash-Based Geopolymer Concrete Develoment and properties of low-calcium fly ash-based geopolymer concrete by Djwantoro Hardjito and B.Vijaya Rangan Research Report GC 1 (103 pages) (dec. 2005), Report GC 2 (107 pages) (mar. 2006) Faculty of Engineering, Curtin University of Technology Perth, Australia From 2001, we have conducted some important research [...]
#13: Solidifaction of various radioactive waste in geopolymer and long-term stability
Solidification of various radioactive residues by géopolymère with special emphasis on long-term-stability by E. HERMANN (1), C. KUNZE (1), R. GATZWEILER (2), G.KIEßIG (2), J. DAVIDOVITS (3) (1) B.P.S. Engineering GmbH (2) WISMUT GmbH (3) Cordi-Géopolymère SA published in the Géopolymère ‘99 Proceedings, 2nd International Conference on Geopolymers Sludges containing radionuclides, toxic heavy metals and [...]
#9: Ultra-High Temperature Tooling Material for the Manufacture of Advanced Composites
Ultra-High Temperature Tooling Material for the Manufacture of Advanced Composites SAMPE 1991, 36, vol. 2, pp 1939-1949: Geopolymers of the Poly(sialate-disiloxo) type (- Si-O-Al-Si-O-Si-O -), very-low viscosity inorganic resins, harden like thermosetting organic resins, but have use-temperature range up to 1000°C (1830°F). High-temperature techniques are no longer necessary to obtain materials which are ceramic-like in [...]
#8: Alkaline Cements and Concretes, Properties of Geopolymer cements
1rst International Conference on Alkaline Cements and Concretes KIEV Ukraine, 1994 PROPERTIES OF GEOPOLYMER CEMENTS by Joseph Davidovits published in the Proceedings, pp. 131-149 Geopolymer cement, high-alkali (K-Ca)-Poly(sialate-siloxo) cement, results from an inorganic polycondensation reaction, a so-called geopolymerisation yielding three dimensional zeolitic frameworks. High-tech Geopolymer K-Poly(sialate-siloxo) binders, whether used pure, with fillers or reinforced, are [...]
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