Toughness Enhancement: Additives like silica fume and fly ash improve the durability of concrete by refining the microstructure and reducing permeability. On top of that, the SAM Number confirmed the next correlation to fast freeze-thaw tests than current suggestions for that Spacing Component. The variability of the SAM Number is https://admixturetypes31950.blogkoo.com/5-easy-facts-about-admixture-types-described-51803788