發送短信 : Correlation between initial SiO<inf>2</inf>/Al<inf>2</inf>O<inf>3</inf>, Na<inf>2</inf>O/Al<inf>2</inf>O<inf>3</inf>, Na<inf>2</inf>O/SiO<inf>2</inf> and H<inf>2</inf>O/Na<inf>2</inf>O ratios on phase and microstructure of reaction products of metakaolin-rice husk ash geopolymer

  _____    _    _     _____      ___     _    _   
 / ____|| | || | ||  / ____||   / _ \\  | \  / || 
/ //---`' | || | || / //---`'  | / \ || |  \/  || 
\ \\___   | \\_/ || \ \\___    | \_/ || | .  . || 
 \_____||  \____//   \_____||   \___//  |_|\/|_|| 
  `----`    `---`     `----`    `---`   `-`  `-`