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ปี 2020 | Publications & Media
The potential of industrial waste: using foundry sand with fly ash and electric arc furnace slag for geopolymer brick production
The purpose of this study was to investigate the best ratio of waste foundry sand (WFS), fly ash (FA), and electric arc furnace slag (EAF slag) for the production of geopolymer bricks. In this research study, WFS, FA, and EAF slag were mixed at the ratio of 70:30:0, 60:30:10, 50:30:20, and 40:30:30 with 8M sodium hydroxide (NaOH) and 98% purity sodium silicate (Na2SiO3) with a ratio of Na2SiO3/8M NaOH = 2.5. The mixtures were compacted in 5 cm × 5 cm x 5 cm molds and cured at an ambient temperature for 28 days. Then, their compressive strength was analyzed. The results showed that the geopolymer bricks with the highest compressive strength were those mixed at the 40:30:30 ratio, with a compressive strength of 25.76 MPa.
ปี 2020 | Publications & Media
Material Flow Analysis of Maize Supply Chain in Thailand
Maize is an important material for feed production in Thailand. In the past 10 years, the demand of feed production has increased significantly, resulting in the increasing demand of maize. In this research, Material Flow Analysis was applied to track flows of raw materials and resources used in maize supply chain in Thailand in 2015.
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