| 摘要 |
PROBLEM TO BE SOLVED: To provide sodium aluminate for a set accelerating agent which exhibits good mixing performance with calcium aluminate particles and the like, imparts flash setting properties, develops high strength in a short time, maintains a stable property and is preservable for a long time of period without special preservation means.SOLUTION: There is provided sodium aluminate for a set accelerating agent having a content molar ratio (NaO/AlO) of NaO to AlOof 1.3 to 1.6, where the sodium aluminate has a maximum particle size of 0.3 to 1 mm and an average particle size of 0.05 mm or more and has water deposited thereon of 0.6 to 2.0 pts.mass based on 100 pts.mass of the sodium aluminate. |
