Geopolymer Institute

Yes, Prof. Joseph Davidovits put the word GEOPOLYMER (its english spelling) in the Public Domain in 1979. It means that everybody can freely use this word in scientific papers, for commercial or non-commercial purpose without any authorization.
No-one can register this word alone as a trademark in any country, it will not be valid. However, it [...]

In his message posted in the topic how to separate neat geopolymer , Dr. Zhang Yunsheng (zhangys) from Southeast University, Hong Kong, China, wrote:
However, there is always some amount of metakaolin that is consumed with reference to XRD, IR and MAS-NMR spectral.
X-ray diffraction of geopolymers of the Na-PSS, K-PSS, (Na,K)-PSS types, are rather boring because [...]

In his message posted in the topic how to separate neat geopolymer, Dr. Zhang Yunsheng (zhangys) from Southeast University, Hong Kong, China, wrote:
In your email, you said that it should be noted to avoid using general term such as METAKAOLIN. In fact, many naturally occurring and man-made Si-Al materials with low calcium have been used [...]

Geopolymer combines the merits of cement and ceramics, we can make materials with the properties of ceramics by a process like cement. Water reducing agents are popular in cement industry.
The question is what will happen in geopolymer?
Experiences carried out with geopolymer cements show good results with regular water reducing agents used for Portland Cement. The [...]

I’m a sixth form student studying chemistry. I am interested in doing a project at college similar to the one you have done on recreating the stone used in the pyramids and building a small replica to show the method that might have been used.
I’ve looked over the information on this site and others but [...]

Palomo calcined the kaolinite at 750°C for 24h.
Don’t you think that this time can diminuish the viability of the geopolymer in large scale?
Do you think that Palomo has really synthesized a geopolymer one? He did exactly what you say in your patents (US 4,349,386) will not work, namely: invert the addition of the reagents. He [...]

You answered my question about kaolinite calcination. You said me to see your patent 5,288,321. I read it and I understood that you obtained a metakaolinite, calcined between 700°C and 800°C, with aluminium coordination number of IV, V and VI. In this temperature I would obtain less aluminium VI than IV or V. In your [...]

My paper: Geopolymer: Inorganic polymeric new materials, J. of Thermal Analysis, vol.37 (1991) 1633-1656 (see in the Library )
1) single crystals, page 1637: this means that the crystals obtained in diluted medium, which is always the case by the fabrication of zeolites, these crystals can been seen by naked eye. They are big. The paragraph [...]

My name is Prof. Mario Collepardi and I am a professor of “Materials Science and Technology” at the Politecnico of Milan, Italy. Yesterday I have seen your interview by Mr. Giacobbo at the “Stargate” program on “La 7″ Italian TV channel. I am very interested to your theory about the building technique used by Egyptians [...]

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 [...]