matrix
Who is doing research on geopolymers?
There are now hundreds of labs and institutions throughout the world doing fundamental and applied research on geopolymers. Some of them are listed at Doing research on geopolymers.
Geopolymer Training courses start April 01, 2008
The Geopolymer Institute is introducing a series of training courses on Geopolymer Chemistry, Geopolymer Science and related Applications. The 2-day and 3-day courses will be held at the Geopolymer Institute, Saint-Quentin, France (one and half hours drive North of Paris), with low-rates Hotels in the vicinity. The first series of courses start on April 01. [...]
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 [...]
H2O, SiO2 and Al2O3 ratios
There is a clear relationship between water ratio and mechanical properties. The water is our carrier. Polycondensation happens between compounds that are soluble in water. It is the water content which determines the density of the matrix. After polycondensation, the excess of water which is not tied to the structure in the form of -OH [...]
Chemical Structure and Applications
The atomic ratio Si:Al in the poly(sialate) structure determines the properties and application fields. A low ratio Si:Al (1,2,3) initiates a 3D-Network that is very rigid. A high ratio Si:Al, higher than 15, provides polymeric character to the geopolymeric material. One third of Davidovits’ book, GEOPOLYMER Chemistry & Applications, is dedicated to applications. See the [...]
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 [...]
Ceramics, Binders and Composites
Geopolymeric binders, used either with rock aggregates to produce rock-concretes or with carbon fibers to produce non-flammable composites, have a variety of important industrial uses. The same geosynthesis that produces geopolymeric rock-cements is used industrially for making binders for advanced composite materials and ceramics. Updated research is presented in Davidovits’ book, Geopolymer Chemistry & Applications, [...]
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 [...]
#15: 30 Years of Successes and Failures in Geopolymer Applications
30 Years of Successes and Failures in Geopolymer Applications. Market Trends and Potential Breakthroughs. by Joseph Davidovits Invited Paper, Geopolymer 2002 International Conference, October 28-29, Melbourne, Australia The presentation included 30 slides describing following geopolymer applications developed since 1972 in France, Europe and USA. The Geopolymer chemistry concept was invented in 1979 with the creation [...]
#4: Fire response of geopolymer structural composites
1rst International Conference on Composites in Infrastructure Tuscon, Arizona, Jan. 1996 Fire response of geopolymer structural composites by Richard E. Lyon, Usman Sorathia, P.N. Balaguru , Andrew Foden, Joseph Davidovits and Michel Davidovics published in the Proceedings of ICCI’96, pp. 972-981; see also the paper on pages166-177 The fire response of a potassium aluminosilicate matrix [...]
New to geopolymers? Want to learn more about this chemistry? Here is the only to place to buy at a special price a bundle comprising the book "Geopolymer Chemistry & Applications" 3rd ed. together with the video "Geopolymer for newcomers".