The active mechanism of the activators is discussed according to the pictures of scanning electron microscopy of slurry of fly ash and cement.
根据粉煤灰-水泥浆体的扫描电子显微镜图像，探讨了粉煤灰活性激发剂的激发机理。
Conclusion: the values of fatigue strength and bending strength of the bone cement were improved by vacuum mixing. The method of vacuum mixing has an active significance in clinic.
结论：采用真空搅拌骨水泥的方法，提高了国产骨水泥的抗疲劳强度及静态抗弯曲强度，在临床应用有较大的积极意义。
This thesis explains the results of a series of tests done to explore the feasibility of using the Tuff excavated in Jiudian as active admixture in Cement industry.
本文阐明了九店凝灰岩用作水泥工业活性混合材料的可行性。
The author reviews applied results of 13 kinds of natural active materials for cement developed and utilized in our country, and takes some applied examples.
对我国已经开发利用的13种天然活性水泥混合材的应用效果作了比较全面的评述，并列举了应用实例。
The characteristic of high performance concrete (HPC) is low water cement ratio and active contents addition, by which the durability of concrete can be improved.
而高性能混凝土特点是低水胶比及添加活性矿物集料，从而达到改善耐久性能的目的。
The characteristic of high performance concrete (HPC) is low water cement ratio and active contents addition, by which the durability of concrete can be improved.
而高性能混凝土特点是低水胶比及添加活性矿物集料，从而达到改善耐久性能的目的。
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