Alkali Activated Materials are NOT Geopolymers - Part 1

[@thatjasonr]

When using a slag/ fly ash geopolymer based cement (assuming the fly ash is class f at a high % of total binder), using a chemical such as sodium silicate (modulus between 1 and 2), would this be considered a geopolymer or alkali activation? How does one know the difference? Is it based on the powder used? or the chemical used to increase the pH?

[@Comikz1]

Hi! Mr Jason, did you found the answer for your question? I have the same doubt because most of the researchers are using those two words as synonyms.

[@frankdrebin2343]

the sodium silicate is not the alkaline activator. That would be either NaOH or CaOH.

[@jeromeyeo6110]

I don't know much but I personally considered some alkali-activated materials to geopolymerize under certain conditions such as low Ca and high Al content. It's the same kind of chemical activation process but different pathways. Just some researchers don't like their self-proclaimed terminology to be changed by other researchers.

[@jeromeyeo6110]

@@Comikz1 I have shared my opinion by replying to Mr. Jason. May I know whether you have found your answers over these years, please?

[@oscarverwey]

Amezing presentation

[@sunnymonsterproductions4125]

i dislikes this video because i have to translate this from English to Spanish for my cousin in south america and i barely can speak English, non the less Spanish

[@mukonank783]

This was 3 years ago, but for those experiencing the same problem. This video has captions.