Material Circularity 材料循环性
Even buildings that embrace sufficiency and material efficiency still require materials and products. If the process of extracting, manufacturing, using, and disposing of these materials is linear, then a project’s material use will have a significant environmental impact.
即使采用了充足性与材料效率理念的建筑，仍需使用材料与产品。若这些材料的开采、生产、使用与处置过程为线性模式，项目的材料使用仍会产生显著的环境影响。
Green Building Strategies 绿色建筑策略
Green building strategies encourage material circularity, where resources are continuously reused and recycled, reducing dependence on virgin resources and minimizing waste. Using what already exists eliminates the impact of making new materials.
绿色建筑策略倡导材料循环性，即资源被持续再利用与回收，减少对原生资源的依赖并降低废弃物产生。利用已有材料可避免新材料生产带来的环境影响。
Linear vs. circular approach to materials 材料的线性模式与循环模式
- Linear approach to materials 材料线性模式：TAKE（开采）→ MAKE（生产）→ WASTE（废弃）
- Circular approach to materials 材料循环模式：MAKE（生产）→ USE（使用）→ REUSE OR RECYCLE（再利用或回收）→ 重回循环
Strategies that use circularity to reduce demand on new materials and minimize waste include:
- Reusing whole buildings either by renovating them to serve the same function as they did before or adapting them for a new use.
- Reusing as many materials as possible, either from the project site (if there is a preexisting building there to deconstruct) or from other sources of salvaged building materials, such as retail stores or wholesale warehouses.
- Collecting and reusing products from the building during future redesigns. Many building materials (such as carpet tiles or office furniture) might still be in good condition when a redesign occurs and thus can be reused in a different space in the future. If materials cannot be reused or stored for later, they can be donated or sold.
利用循环模式减少新材料需求、降低废弃物的策略包括：
- 整栋建筑再利用：通过翻新使其维持原有功能，或改造后赋予新用途。
- 尽可能多地再利用材料：可来自项目场地（若有既有建筑可拆解），或其他回收建筑材料来源，如零售门店、批发仓库等。
- 未来改造时收集并再利用建筑产品：许多建筑材料（如地毯方块、办公家具）在改造时仍保持良好状态，可在未来用于其他空间。若材料无法再利用或储存，可进行捐赠或出售。
Quality of life
Reuse of buildings and materials can also retain the cultural value of the original materials, such as a historic building, reclaimed wood from a ship, or original bricks or masonry.
建筑与材料的再利用还能保留原始材料的文化价值，例如历史建筑、船舶回收木材、原始砖块或砌体等。
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