作者：CHRISTOPHER PARR;CHRISTOPH WOHRMEYER;BENOIT VALDELIEVRE;
作者單位：Lafarge Aluminates, 35-6, 3-chome, Hama-cho, Nihonbashi, Chuo-ku Tokyo 103-0007
刊名：Journal of the Technical Association of Refractories, Japan
ISSN：
出版年：2003-01-05
卷：23
期：4
起頁：231
止頁：238
分類號：TQ175
語種：英文
關鍵詞：
內容簡介The development of strength within the castable systems studies is impacted by all the components of the active binder phase; CAC, Alumina and additives. It is possible to optimise the rheology/strength couple via the modification of the CAC hydration for each system; Favour nucleation with larger surface reactive alumina and or higher soluble sodium. - Addition of Lithium ions which promote AH3 and facilitate nucleation. The onset of strength development can he hastened without a major impact on the rheology. This leads to higher strengths at a given time, eg. 24 hours, after casting. The use of multiple additive systems is necessary to control each step of the CAC hydration process along with a careful choice of alumina type for each castable system. Unfortunately, this implies the development of increasingly complicated formulations by the refractory producer. A future challenge could be to deliver complete binder phase systems which offer the refractory producer a simplicity that doesn't exist today.
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