ดีศาสตร์อภิสิทธิ์, and ฤทธิรุทธเจริญชัย. 2021. “CALCIUM FLY ASH GEOPOLYMER MORTAR IS A CEMENT PIPE COATING MATERIAL AGAINST SULFURIC ACID CORROSION”. The 26th National Convention on Civil Engineering 26 (June), BTL-03. https://conference.thaince.org/index.php/ncce26/article/view/774.