Self-consolidating concrete (SCC) with manufactured sand (MSCC) is crucial to guarantee the quality of concrete construction technology and the associated property. The properties of MSCC with different microlimestone powder (MLS) replacements of retreated manufactured sand (TMsand) are investigated in this study. The result indicates that high-performance SCC, made using TMsand (TMSCC), achieved high workability, good mechanical properties, and durability by optimizing MLS content and adding fly ash and silica fume. In particular, the TMSCC with 12% MLS content exhibits the best workability, and the TMSCC with 4% MLS content has the highest strength in the late age, which is even better than that of SCC made with the river sand (Rsand). Though MLS content slightly affects the hydration reaction of cement and mainly plays a role in the nucleation process in concrete structures compared to silica fume and fly ash, increasing MLS content can evidently have a significant impact on the early age hydration progress. TMsand with MLS content ranging from 8% to 12% may be a suitable alternative for the Rsand used in the SCC as fine aggregate. The obtained results can be used to promote the application of SCC made with manufactured sand and mineral admixtures for concrete-based infrastructure.

具有人造砂（MSCC）的自固结混凝土（SCC）对于保证混凝土施工技术的质量和相关性能至关重要。在本研究中，研究了用不同微石灰石粉（MLS）替代后处理人造砂（TMsand）的MSCC的性能。结果表明，使用TMsand（TMSCC）制成的高性能SCC通过优化MLS含量并添加粉煤灰和硅粉，实现了较高的可加工性，良好的机械性能和耐久性。特别是，MLS含量为12％的TMSCC表现出最佳的可加工性，而MLS含量为4％的TMSCC的后期强度最高，甚至优于用河砂（Rsand）制成的SCC。尽管与硅粉和粉煤灰相比，MLS的含量对水泥的水合反应有轻微的影响，并且在混凝土结构的成核过程中起主要作用，但增加MLS的含量显然对早期的水合进展有重要影响。MLS含量在8％到12％之间的TMsand可以替代SCC中细骨料的Rsand。所得结果可用于促进由人造沙子和矿物掺合料制成的SCC在混凝土基础设施中的应用。