The Linz–Donawitz (LD) slag is an industrial waste generated in Linz–Donawitz process of steel making. It is not gaining importance in construction industry because of its volume instability, and presence of excessive phosphorous and sulphur content. Suitable accelerated ageing and masking of harmful materials can improve the engineering properties of LD slag. The research shows that it is possible to use LD slag in sustainable construction applications including cementitious binders, aggregates in pavement and concretes, building products, soil improvement, etc. However, its use is presently limited to 25% of the total quantity generated and the rest is dumped as landfill. Thus, there is a strong need to review the available literature to explore the gainful utilization of LD slag in various applications. Aim of this paper is to highlight the potential of LD slag for a broad range of applications based on the published research over the past decade along with the recent research and developments. Physico-mechanical properties, microscopic characteristics, and mineralogical composition of LD slag observed in various studies are also reported. Efficacies of LD slag utilization in construction are also presented. This paper also discusses current challenges for its usage.

林茨-多纳威兹（LD）炉渣是林茨-多纳威兹炼钢过程中产生的工业废料。由于其体积不稳定以及磷和硫含量过高，它在建筑行业中的重要性不高。适当加速老化和掩盖有害物质可改善LD炉渣的工程性能。研究表明，LD渣可用于可持续的建筑应用，包括水泥粘合剂，路面和混凝土中的骨料，建筑产品，土壤改良剂等。但是，目前，LD渣的使用仅限于所产生总量的25％和其余部分则作为垃圾填埋场倾倒。因此，迫切需要回顾现有文献，以探索LD矿渣在各种应用中的有益利用。本文的目的是根据过去十年中已发表的研究以及最近的研究和发展来突出LD渣在广泛应用中的潜力。还报道了在各种研究中观察到的LD炉渣的物理力学性能，微观特征和矿物学组成。还介绍了LD渣在建筑中的利用效率。本文还讨论了其使用方面的当前挑战。