ジオポリマー・アルカリ活性材料１

[1111] セメント添加ジオポリマーモルタルにおける脱水縮重合反応と水和反応の並存が乾燥収縮特性に与える影響

Lim Horhok¹, 岩波光保¹, 中山一秀¹ (1.東京科学大学)

キーワード：Geopolymer、 drying shrinkage、 dehydration、 cement addition、 hydration

Evaporation of water generated during dehydration is one of the key factors in the drying shrinkage of geopolymer. This study examined the coexistence of geopolymer and cement to evaluate its influence on drying shrinkage of geopolymer. Fly ash was partially replaced with 10% cement with the aim of consuming pore water through hydration to suppress water evaporation and reduce drying shrinkage. Cement hydration was accelerated due to the high alkalinity of geopolymer solution, which adversely altered the reaction products and pore structures of geopolymer, resulting in larger drying shrinkage.