Understanding the rheological properties of cementitious materials is important for controlling their fresh properties and for improving the practical applications. In this study, the rheological properties of pastes made from ordinary Portland cement blended with different amounts of calcined clay and limestone were investigated in order to understand the combined and independent effects of limestone and calcined clay on the rheological properties of limestone calcined clay cement (LC3). Large Amplitude Oscillation Strain was applied and the subsequent harmonic distortion was used to evaluate nonlinear response for the first time for cementitious materials. The results showed that calcined clay leads to increased static and dynamic yield stress, initial thixotropic index, plastic viscosity and cohesion, as well as decreased harmonic distortion, while limestone has an opposite effect. It is believed that these results will aid in understanding the viscoelasticity of this blended cement.

了解水泥质材料的流变特性对于控制其新鲜特性和改善实际应用非常重要。在这项研究中，研究了由普通波特兰水泥与不同量的煅烧粘土和石灰石混合而成的糊料的流变性能，以了解石灰石和煅烧粘土对石灰石煅烧粘土水泥（LC3）流变性能的组合和独立影响。 ）。应用大振幅振荡应变，随后的谐波畸变首次用于评估胶凝材料的非线性响应。结果表明，煅烧粘土可导致静态和动态屈服应力增加，初始触变指数，塑性粘度和内聚力以及降低谐波畸变，而石灰石则相反。相信这些结果将有助于理解这种混合水泥的粘弹性。