Abstract CO2 regulation and raw material availability will strongly influence the future cement market and a wider use of composite cements containing limestone and pozzolan or slag is expected. In the present paper, the possibility to combine Portland cements (PCs) with reduced clinker factor with sulfoaluminate cement (CSA), is explored. Low Portland clinker cements are prepared in laboratory using different supplementary cementitious materials (limestone, slag, pozzolan and fly ash) and mixed with a sulfoaluminate cement: the hydration behavior of the resulting binders is investigated up to 90 days through a multi-technique approach involving X-ray diffraction, differential scanning calorimetry and nuclear magnetic resonance spectroscopy. Understanding the interaction mechanisms between SCMs and CSA/PC blends will support the development of innovative high performing binders based on CEM III or CEM V, or even on new standardized CEM II. Results highlight that slag is particularly suitable promoting late strength development.

中文翻译：

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降低熟料因子的水泥与硫铝酸盐结合剂的水化行为

摘要 CO2 监管和原材料供应将强烈影响未来的水泥市场，预计将更广泛地使用含有石灰石和火山灰或矿渣的复合水泥。在本文中，探讨了将熟料系数降低的波特兰水泥 (PC) 与硫铝酸盐水泥 (CSA) 结合使用的可能性。在实验室中使用不同的补充胶结材料（石灰石、矿渣、火山灰和粉煤灰）制备低波特兰熟料水泥，并与硫铝酸盐水泥混合：通过多种技术方法研究所得粘合剂的水化行为长达 90 天X 射线衍射、差示扫描量热法和核磁共振波谱。了解 SCM 和 CSA/PC 混合物之间的相互作用机制将支持基于 CEM III 或 CEM V，甚至新的标准化 CEM II 的创新高性能粘合剂的开发。结果表明，炉渣特别适合促进后期强度发展。