Systematic study on the effacements of deferent fineness, especially ultra-grinding limestone flour, in the performance of concrete is made.
本论文较系统的研究了不同细度，特别是超磨细石灰石粉对混凝土性能的影响。
This paper researched the affection and improvement of ultra-grinding limestone flour as concrete admixtures on the performance of concrete.
作者利用超细石灰石粉作为掺合料配制高强高性能混凝土，研究超细石粉对混凝土性能的影响。
Results indicate that proper quantities of ultra-fine limestone flour can help engineers to decrease the time-loss of concrete slump constant and to increase concrete strength.
适当的掺量可减少混凝土坍落度的经时损失，提高混凝土强度。
Result show that the hydration of cement is accelerated by limestone flour at early ages.
结果表明：在水化早期，石灰石粉加速了水泥的水化。
Result show that the hydration of cement is accelerated by limestone flour at early ages.
结果表明：在水化早期，石灰石粉加速了水泥的水化。
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