在构建新拌浆体多级絮凝结构的基础上,应用回转粘度计测定掺加粉煤灰、硅灰的复合胶凝材料浆体的流变参数,得出在掺加超塑化剂的条件下,粉煤灰、硅灰在各掺量下的回滞圈面积大小不一,这是由于粉煤灰主要存在“滚珠”效应,解絮凝效应,减水剂消除效应;硅灰主要存在填充效应和减水剂消除效应。运用流变学与多级絮凝结构模型进行对其定性的解释。为解决掺加矿物掺合料的复合胶凝材料与PC超塑化剂的相容性问题提出相应的理论依据。 Based on the multi-stage flocculation structure of the new slurry, the rheological parameters of the composite cementitious slurry with fly ash and silica fume were measured by rotary viscometer. , The area of ​​hysteresis loop of fly ash and silica fume varies with the content of fly ash, which is mainly due to “ball” effect of fly ash, deflocculation effect and elimination effect of water reducer; There is a filling effect and a water reducer elimination effect. Using rheology and multi-stage flocculation structure model qualitative interpretation. In order to solve the compatibility of mineral admixture with composite cementitious material and PC superplasticizer, the corresponding theoretical basis is proposed.