Abstract In this research, the use of superfine zeolite (SZ) in conjunction with silica fume (SF) in cementitious paste was investigated. A number of cementitious paste samples with different amounts of SZ and SF and varying water/cementitious materials ratios were produced for testing of flowability, cohesiveness, 7-day, 28-day and 70-day compressive strengths, packing density and water film thickness (WFT). The test results showed that in the presence of SF, the addition of SZ as cement replacement would decrease the flowability, increase the cohesiveness, increase the packing density, decrease the WFT, decrease the early-age strength and increase the long-term strength. In-depth analysis revealed that the SZ and SF exerted their influences on the rheology mainly through the corresponding changes in WFT. Moreover, the cementing efficiency of the SZ for 70-day strength was higher when added in conjunction with SF than when added alone revealing certain synergistic effect of the combined addition of SZ and SF on long-term strength.

中文翻译：

---

超细沸石与硅粉结合使用——对水泥浆流变学和强度的影响

摘要 在这项研究中，研究了超细沸石 (SZ) 与硅粉 (SF) 在水泥浆中的应用。制备了许多具有不同 SZ 和 SF 含量以及不同水/胶凝材料比的水泥浆样品，用于测试流动性、内聚性、7 天、28 天和 70 天抗压强度、堆积密度和水膜厚度（ WFT）。试验结果表明，在SF存在下，加入SZ代替水泥会降低流动性，增加内聚性，增加堆积密度，降低WFT，降低早期强度，提高长期强度。深入分析表明，SZ和SF主要通过WFT的相应变化对流变学产生影响。而且，