Preparation of C-S-H-PCE composites using an impinging stream reactor

Abstract

The C-S-H-PCE composites (CPCs) serve as an accelerator for cement hydration. This work presents a novel approach for synthesizing CPCs using an impinging stream reactor (ISR). The resulting CPCs exhibited an average particle size of approximately 21 nm and significantly enhanced the compressive strength of mortar when used as an additive. The compressive strength value of the mortar after curing for 6 h is 18.7 N/mm2, which is 503 % higher than the control group. Moreover, the ISR method was superior to the conventional stirred tank reactor method in terms of product particle size and acceleration efficiency.