The setting time of ternesite-calcium sulfoaluminate (TCSA) is shorter while the fluidity and mechanical strength are lower. Herein, the method of synergistic regulation of polycarboxylate superplasticizer and β-cyclodextrin was adopted to solve this. The results showed that, compared to the reference sample, when 0.25% polycarboxylate superplasticizer compounded with 0.05% β-cyclodextrin, the setting time of TCSA was prolonged, the fluidity was increased by 118% (201 mm). And the net pastes compressive strength reached 73.9 MPa and 103.8 MPa for 7 days and 28 days, respectively. In addition, under the synergistic effect of polycarboxylate superplasticizer and β-cyclodextrin, the early hydration heat rate of TCSA was decreased significantly, which delayed the formation of ettringite. Meanwhile, the density of the product was improved due to the reduction of water consumption, thus achieving the effect of normal setting time, suitable fluidity and high mechanical strength. Moreover, the cement has good frost resistance.

菱镁矿硫铝酸钙（TCSA）的凝结时间较短，但流动性和机械强度较低。本文采用聚羧酸高效减水剂与β-环糊精协同调控的方法来解决这一问题。结果表明，与参比样品相比，0.25%聚羧酸高效减水剂与0.05%β-环糊精复配后，TCSA的凝结时间延长，流动性提高118%（201 mm）。网糊抗压强度分别达到73.9 MPa和103.8 MPa，持续7天和28天。此外，在聚羧酸高效减水剂与β-环糊精的协同作用下，TCSA的早期水化热速率显着降低，延缓了钙矾石的形成。同时，由于用水量的减少，提高了产品的密度，从而达到凝结时间正常、流动性合适、机械强度高的效果。此外，水泥具有良好的抗冻性能。