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.
List of NBA MVP Award Winners. Immediately following the NBA regular season, a panel of sportswriters and sports broadcasters vote to decide who should receive the award for the National Basketball Association âs Most Valuable Player.rior to 1981, the award was originally voted on by the NBA Players themselves, and starting in 2010, fan voting accounted for one ballot. Each writer, broadcaster, and fan ballot on the panel casts a vote for their first through fifth place candidates for the NBA MVP. 1  First Place Vote = 10 Points.