Abstract Many parameters such as clinker composition, clinker factors, type of the supplementary cementitious materials etc. need to be considered when formulating the composition of blended cement systems. In this study, a numerical framework has been developed for designing composite cements with calcined clay and limestone. It is seen that availability of portlandite becomes the limiting factor in highly substituted blended cement systems. Therefore, it will be beneficial to use lower grade calcined kaolinitic clays in blended cements with low clinker factors, and higher grade calcined kaolinitic clays in blended cements with high clinker factors. The numerical framework presented will be beneficial in designing an optimal blend composition of a given set of clinker, calcined clay and limestone, which can act as good starting point for extensive experimental programmes for understanding mechanical as well as durability characteristics.

中文翻译：

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一种设计含煅烧粘土和石灰石的复合水泥的数值方法

摘要 在配制混合水泥体系的组成时，需要考虑熟料组成、熟料因素、辅助胶凝材料类型等许多参数。在这项研究中，已经开发了一个数值框架来设计具有煅烧粘土和石灰石的复合水泥。可以看出，硅酸盐的可用性成为高度替代的混合水泥系统的限制因素。因此，在熟料系数低的混合水泥中使用低品位煅烧高岭土，在熟料系数高的混合水泥中使用高品位煅烧高岭土将是有益的。所提出的数值框架将有助于设计一组给定的熟料、煅烧粘土和石灰石的最佳混合成分，