The construction industry remains under immense pressure to reduce its material and climate related impacts. Increasing material demand and reduced building lifetimes have therefore motivated efforts for urban mining in buildings. Even though urban mining has been projected as a crucial measure for improving resource efficiency, its adoption as a practice in the construction industry remains at a very symbolic stage. Upscaling secondary resource recovery and reuse in the construction sector requires further efforts to understand urban mining feasibility from the perspective of project timelines, salvage time, skills and costs. Hence, this study develops an empirical research approach to measure urban mining feasibility and applies it to demolition-ready urban residential buildings stock in Singapore with semi-skilled construction workers. It develops indicators for urban mining feasibility based on planning stages, process change, behavioural practices and reuse-driven economic considerations. Based on urban mining of over 350 building components from 34 categories, results show an average of 1 to 12 min recovery time with an estimated urban mining cost from S$0.8 to S$9 per building component. Further, regulatory requirements for demolition permits can provide sufficient time for urban mining without affecting project timelines. Even though the mining skills of workers seem important, results highlights significant improvement in mining skills based on repeated salvage of specific building components. Results also provide robust evidence of reuse-driven urban mining feasibility in the case under study with significant prospects for embodied carbon savings. Overall, urban mining of buildings can contribute to net-zero targets and climate mitigation efforts with greater multi-stakeholder involvement and market push for reuse in the construction sector.

建筑行业仍然面临着减少其材料和气候相关影响的巨大压力。因此，不断增加的材料需求和缩短的建筑物寿命促使人们努力在建筑物中进行城市采矿。尽管城市采矿已被预测为提高资源效率的关键措施，但其在建筑行业作为一种实践的采用仍处于非常具有象征意义的阶段。扩大建筑部门的二次资源回收和再利用需要进一步努力，从项目时间表、打捞时间、技能和成本的角度了解城市采矿的可行性。因此，本研究开发了一种实证研究方法来衡量城市采矿的可行性，并将其应用于新加坡半熟练建筑工人的可拆除城市住宅建筑存量。它根据规划阶段、流程变化、行为实践和再利用驱动的经济考虑制定城市采矿可行性指标。基于对 34 个类别的 350 多个建筑构件的城市开采，结果显示平均恢复时间为 1 到 12 分钟，每个建筑构件的估计城市开采成本为 0.8 新元至 9 新元。此外，拆迁许可证的监管要求可以为城市采矿提供足够的时间，而不会影响项目时间表。尽管工人的采矿技能似乎很重要，但结果表明，基于特定建筑部件的重复打捞，采矿技能得到了显着提高。结果还为所研究案例中再利用驱动的城市采矿可行性提供了强有力的证据，具有显着的隐含碳节约前景。全面的，