Salt-tolerant grout composition and salt-tolerant grout

摘要

PROBLEM TO BE SOLVED: To provide a salt-resistant grout composition and a salt-resistant grout which are excellent in fluidity and material separation resistance and also excellent in strength development and salt resistance. SOLUTION: A binder composed of cement, amorphous aluminosilicate and blast furnace slag, a water reducing agent containing a naphthalene sulfonic acid-based water reducing agent, an expansion material, and a fine aggregate are included, with respect to 100 parts by mass of the binder. , A salt-tolerant grout composition having a blast furnace slag content of 2 to 45 parts by mass and a content of the naphthalene sulfonic acid-based water reducing agent of 0.55 to 1.5 parts by mass. [Selection diagram] None