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External links[edit]

Question validity of external link to Engelhard MetaMax® because of its commercial nature... See also discussion on metakaolin. --Zuejay 04:28, 6 February 2007 (UTC)

If the page linked to in the ref is primarily informational about the general product, even as part of a website whose main purpose is to sell a particular product, it's ok. If the page is primarily about the specific brand, or exists more to sell than inform, the link should go. Argyriou (talk) 18:43, 6 February 2007 (UTC)


I don't think slag should be listed here. It's described by the theoreticians as a "latent hydraulic material" rather than a pozzolan: the action of lime on it is more in the nature of a catalyst than a reactant. The same goes for Hi-Calcium Class C Ash. . . .LinguisticDemographer 20:44, 18 May 2007 (UTC)

Pozzolanic reaction | main article |[edit]

Please, only edit the central page dealing with Pozzolanic reaction which has been transcluded in this page. See Wikipedia:Transclusion to learn how it works. Thank you. Shinkolobwe (talk) 13:30, 21 March 2009 (UTC)

{{:Pozzolanic reaction}}

GGBFS is NOT a pozzolan[edit]

I agree with comments above that GGFS is NOT a pozzolan. ASTM C441 / C441M is QUITE clear: "Standard Test Method for Effectiveness of Pozzolans or Ground Blast-Furnace Slag in Preventing Excessive Expansion of Concrete Due to the Alkali-Silica Reaction" [EMPHASIS ADDED]

It is a hydraulic binder.

Jono2013 (talk) 16:02, 11 May 2013 (UTC)