| 摘要 |
Main component includes siliceous limestone (xCaCO3.ySiO2 where y = 0.3-0.6 and x = 0.4-0.7). After dissociation it is reactive and has a low alkali content. The particle size is 10-30 mm. The level of siliceous limestone exceeds 50%, esp. up to 80%. It can include 20% flint and 5% limestone. |
