Iterative Succession: Conserving the Industrial Built Environment from a Binary Dialectical Perspective Through the Case Study of Magang No. 9 Blast Furnace

The industrial built environment is a spatial aggregation with unique ontological properties： its factors are mutable （showing more synchronic characteristics）， while its layout remains relatively stable （presenting diachronic features more prominently）.Based on the internal construction logic of industrial built environments and opposing the binary perspective of integrity and authenticity in industrial heritage， this paper proposes an operable theoretical paradigm of "layout restoration and gradient conservation of elements". Taking the initial status of the existing industrial built environment as the reference， with the integrity of the layout as the primary principle and the authenticity of the elements as the secondary principle， this method was interpreted in detail. Then， the proposed method was empirically demonstrated using the Magang No.9 Blast Furnace as a case study. Through the binary dialectical recollection， the applicable conservation methods for the industrial built environment were summarized. The iterative succession of the industrial built environment was discussed through interventions such as conservation， restoration， regeneration， and reuse， providing a reference for future research and practice.