The utilization of alternative supplementary cementitious materials (ASCM) and additives in concrete becomes a daily practice due to the increased awareness of their socio-ecological impacts. Exploring for renewable resources of ASCM has been the driving force for the research on this topic since decades. Waste materials have been shown to possess intrinsic physico-chemical properties dependent on their chemical source and physical status. However, wastes evolved in the form of fine dust are known to cause chemical, biological and visual pollution when left in open areas without collection and proper recycling or damping. The ornamental stone factories, necessary for the decoration of the contemporary constructions, produce fine limestone dust (FLSD), which was elucidated as an example in this study. A huge amount of FLSD is released from this industry. The incorporation of a high volume of FLSD and hybrid combination of steel fibers and polyvinyl alcohol (PVA) microfibers in the production of high-performance concrete (HPC) was the main objective of the study. The replacement level of 45% FLSD has enabled a high dispersion of 0.35% PVA microfibers in the presence of 1% steel fibers of the total mix volume. Moreover, the presence of FLSD has also mitigated the occurrence of PVA balling effect, which often takes place at much lower dosages. The results of the mechanical and chloride-ion penetration resistance of the final concrete mixture were encouraging. Both high compressive strength of 70 MPa and elevated modulus of rupture of 12 MPa with a cementitious matrix of very low penetration for chloride ions, supported with enhanced microstructure, could be obtained. The production of high-performance hybrid fiber-reinforced concrete containing high volume ornamental stone dust is proved feasible, ecofriendly and sustainable.

由于人们对它们的社会生态影响的认识不断提高，因此在混凝土中使用替代性补充胶凝材料（ASCM）和添加剂已成为日常工作。几十年来，探索ASCM的可再生资源一直是该主题研究的驱动力。废物已被证明具有固有的物理化学性质，取决于其化学来源和物理状态。然而，众所周知，以细粉尘形式释放的废物如果留在空旷地区而没有收集，没有适当的回收或阻尼，则会造成化学，生物和视觉污染。装饰石材工厂是当代建筑装饰所必需的，其生产的石灰石细粉（FLSD）很好，本研究对此进行了说明。该行业释放了大量的FLSD。该研究的主要目的是在生产高性能混凝土（HPC）中加入大量的FLSD以及钢纤维和聚乙烯醇（PVA）超细纤维的混合组合。在总混合物量的1％的钢纤维存在下，45％的FLSD替代水平可实现0.35％的PVA超细纤维的高度分散。此外，FLSD的存在还减轻了PVA球形效应的发生，这种效应通常以低得多的剂量发生。最终混凝土混合物的抗机械和抗氯离子渗透性的结果令人鼓舞。70 MPa的高抗压强度和12 MPa的高断裂模量，以及对氯离子渗透性很低的胶结基质，可以获得具有增强的微结构的支撑。事实证明，生产含有大量装饰性石材粉尘的高性能混合纤维增强混凝土是可行，生态友好和可持续的。