Abstract Debates remain on the influencing factor and long-term performance of C-S-H-seeded paste. In this study, phase-pure seeds were prepared from diluted Ca3SiO5 hydration. The seed structures were determined using synchrotron-based X-ray diffraction, X-ray absorption spectroscopy, and transmission electron microscopy. Nano-foils and similar Ca and O environments were present in seeds of different Ca/Si; nanofibers were present in high-Ca seeds only which showed lower silicate polymerization. Calorimetry and setting results showed a greater hydration acceleration with high-Ca seeds; seed shape dominated the acceleration. 0.5 wt% high-Ca seeds increased 1- and 28-days paste strength by 300% and 20%, respectively. Life-cycle assessment showed negligible (

中文翻译：

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来自水合硅酸三钙的纤维状硅酸钙水合物种子降低了水泥需求

摘要 关于CSH种子糊的影响因素和长期性能的争论仍然存在。在本研究中，相纯种子是由稀释的 Ca3SiO5 水合制备的。使用基于同步加速器的 X 射线衍射、X 射线吸收光谱和透射电子显微镜确定种子结构。纳米箔和类似的 Ca 和 O 环境存在于不同 Ca/Si 的种子中；纳米纤维仅存在于高钙种子中，显示出较低的硅酸盐聚合。量热法和凝固结果显示高钙种子有更大的水合加速；种子形状主导了加速度。0.5 wt% 的高钙种子使 1 天和 28 天的糊料强度分别增加了 300% 和 20%。生命周期评估显示可忽略不计（