The shell granule or the aggregate thereof is formed of a hard body which contains a hydraulic powder composition in its inside and has a shell obtained by hydration reaction of the powdery composition. 内部に水硬性粉体状組成物を含有し、外殻が前記粉体状組成物を水和反応させて得られる硬化体で形成されてなるシェル状顆粒又はその凝集体。 - 特許庁
The shell powder-containing coal ash solidified matter is obtained by providing the surface of a hydrate containing coal ash, shell powder and lime with a carbonate, and the material is brought into hydration reaction in a state of being press-molded, and is subjected to underwater curing. 石炭灰、貝殻粉末、石灰類を含む水和物の表面に、炭酸塩からなる被膜を有してなり、材料を加圧成型した状態で水和反応させて水中養生する。 - 特許庁