Investigation of Geopolymerization Process of Bangkok Clay Treated by Fly Ash Form Distillery Slop and Sodium Hydroxide

Abstract

The research aimed to study the geopolymerization process of geopolymers from distillery slop’s fly ash (GFA) affecting to unconfined compressive strength of soft clay Improved with geopolymer. When synthetic geopolymer by sodium hydroxide solution concentrate 4, 6, 8, 10 molars and ratio of sodium hydroxide solution : distillery slop’s fly ash equal 0.5, 0.7 and 1.0 found that at sodium hydroxide solution concentrate 6 molar and ratio of sodium hydroxide solution : distillery slop’s fly ash equal 0.5 exhibit the highest compressive strength was 1,862 kPa. When using suitable geopolymer to improve remold Bangkok clay at moisture content 1.1 LL with ratio of remold clay : geopolymer from distillery slop’s fly ash equal 1:2, 1:1.5, 1:1 and 2:1 by weight shown highest compressive strength at curing time 28 day at temperature 25 °C and 70 °C equal 925 and 1,175 kPa respectively.