| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an additive composition for hydraulic composition capable of improving an early strength property, for example, capable of improving strength 16 hours and/or 24 hours after water contact without the curing of applying heat at 50°C or more.SOLUTION: An additive composition for hydraulic composition comprises 1,3-diamino-2-propanol, and dispersant.</p> |
