FAQ
Who is selling geopolymers ?
Companies manufacturing and selling geopolymer products are listed at Selling Geopolymers. The list is growing and becoming longer and longer.
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.
After the Pyramids ?
If you want to know how the knowledge evolved after the Pyramids click on Colosses of Memnon
Is the word geopolymer free ?
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, [...]
XRD and NMR of Geopolymers
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 [...]
New scientific word for METAKAOLIN
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 [...]
Water reducing agent
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 [...]
Making stone simpler guide?
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 [...]
Al(IV)-(V)-(VI) coordination in calcined kaolinite
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 [...]
X-ray crystaline and X-ray amorphous geopolymers
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 [...]
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".