Consider that you have a big amount of pozzolanic materials(silica fume, metakaolin, fly ash, granulated blast furnace slag, zeolite etc.). How long can they be stored in lab conditions?
It depends on your storage quality. Depending on their pozzolanic activity, they may lose their effects with humidity.
https://www.google.com/search?q=silica+fume+storage+consitions&oq=silica+fume+storage+consitions&aqs=chrome..69i57j33i10i160.12660j0j7&client=ms-android-om-lge&sourceid=chrome-mobile&ie=UTF-8
variable with the type of pouzzolanic material used (réactive silicate).
I don’t know the exact time, but I want to share an experience. It could be helpful for you. In our transport lab, some of my friends were using steel slag whole one in dry condition. After that its end. They used it for bituminous concrete.
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