| 摘要 |
PROBLEM TO BE SOLVED: To provide a water stop material capable of imparting excellent water stop performance to a portion which may easily cause water leak in concrete.SOLUTION: A water stop material includes portland cement, a cement crystal proliferating agent including a cement component, a calcium carbonate powder, a high performance water reducing agent and/or high performance AE water reducing agent, and water, wherein the content of water to the 100 pts.mass total of the portland cement, the cement component and the calcium carbonate is ≥15 pts.mass. |
