Fundamental knowledge towards calcined clays is required to understand their impact on rheology and interaction with superplasticizers in cementitious systems. The rheological behavior is investigated by rotational viscometer and mini slump tests and discussed on clinker-free suspensions considering physical properties of one calcined Amaltheen clay and three calcined phyllosilicates (metakaolin, metaillite, metamuscovite). The efficiency of superplasticizers is evaluated for cementitious systems blended with these calcined clays and quartz powder for comparison. Zeta potential, water demand and total surface area are identified as reliable key factors for the demand of superplasticizer - except for metamuscovite. The superplasticizers exhibit better compatibility with quartz-containing calcined Amaltheen clay than with calcined 1:1 or 2:1 phyllosilicates. With the methods used, there is no simple correlation between the interaction of the calcined phyllosilicates with superplasticizers and the latter with a calcined clay containing these phyllosilicates.

需要有关煅烧粘土的基础知识，以了解其对胶凝体系中流变性和与高效减水剂相互作用的影响。通过旋转粘度计和微型坍落度试验研究了流变行为，并在无熟料悬浮液中进行了讨论，其中考虑了一种煅烧的Amaltheen粘土和三种煅烧的页硅酸盐（偏高岭土，偏硅灰石，偏白云母）的物理性能。对于与这些煅烧粘土和石英粉混合的胶凝体系，评估了高效减水剂的效率，以进行比较。Zeta势，需水量和总表面积被确定为高效减水剂需求的可靠关键因素-偏白云母除外。高效减水剂与含石英的煅烧Amaltheen粘土相比，与1：1或2煅烧相比具有更好的相容性 1页硅酸盐。使用所使用的方法，煅烧的层状硅酸盐与高效减水剂之间的相互作用与后者与包含这些层状硅酸盐的煅烧粘土之间的相互作用之间没有简单的关联。