Text this: 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

   _____     ___      ______     ___              
  / ___//   / _ \\   /_____//   / _ \\    ____    
  \___ \\  / //\ \\  `____ `   | / \ ||  |    \\  
  /    // |  ___  || /___//    | \_/ ||  | [] ||  
 /____//  |_||  |_|| `__ `      \___//   |  __//  
`-----`   `-`   `-`  /_//       `---`    |_|`-`   
                     `-`                 `-`