将石灰石粉部分取代粉煤灰用于自密实混凝土的制备,通过试验研究了其掺量对混凝土工作性能、力学性能及密实性的影响,结果表明:不同掺量的石灰石粉可以显著改善自密实混凝土的工作性,并且对混凝土的长期力学性能有所帮助,同时利用粗细骨料Excel软件求解骨料级配设计和优化配合比,能改善混凝土和易性、工作性、耐久性及工程实体感观。 The limestone powder is partially replaced by fly ash for the preparation of self-compacting concrete. The effect of its dosage on the performance, mechanical properties and compactness of concrete is studied through experiments. The results show that limestone powder with different content can significantly improve the self- The workability of concrete and the long-term mechanical properties of concrete help, while the use of coarse and fine aggregate Excel software to solve the aggregate gradation design and optimize the mix, can improve the workability of concrete, workability, durability and engineering feel View