Of these, silica fume is the most reactive, with metakaolin being close to silica fume in terms of reactivity. Fly ash is less reactive, especially during the first few days of curing when less calcium hydroxide is generated. Generally the finer the pozzolan particles are, the more reactive they are. Silica fume is the finest with most particles averaging 0.3 Âµm (microns), metakaolin averages about 4 Âµm, Portland cement averages about 15 Âµm, and fly ash about 70 Âµm. Many pozzolans are waste products from industrial processes.
The most recent Rookie of the Year winner is Karl-Anthony Towns. Twenty-one winners were drafted first overall. Fourteen winners have also won the NBA Most Valuable Player (MVP) award in their careers; Wilt Chamberlain and Wes Unseld earning both honors the same season.
Wilt Chamberlain won the award in the 1959â60 NBA season. Kareem Abdul-Jabbar won the award in the 1969â70 NBA season. Larry Bird won the award in the 1979â80 NBA season. Michael Jordan won the award in the 1984â85 NBA season. Allen Iverson won the award in the 1996â97 NBA season. Pau Gasol won the award in the 2001â02 NBA season. LeBron James won the award in the 2003â04 NBA season.