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首页> 外文期刊>Zeitschrift fur Arznei- und Gewurzpflanzen >Assessing potential environmental impact and construction cost of reclaimed masonry walls
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Assessing potential environmental impact and construction cost of reclaimed masonry walls

机译：评估再生砌体墙的潜在环境影响和建筑成本

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Purpose The recovery of building materials and their reuse in new construction should be considered during the design stage of every new project. This study was conducted to quantify the potential environmental impacts and the economic feasibility of reusing waste material in new constructions with an applicable design solution. Methods Wall pieces reclaimed from the demolition debris of a historic building in St. Petersburg, Russia, were inspected for potential reuse, and their mechanical strengths were determined through laboratory tests. A proposal for the construction of a reclaimed wall was formulated, which took advantage of the strength of the recovered material and suggested solutions for overcoming its weaknesses. The proposed wall was tested for its potential environmental impact with the help of SimaPro software, and its cost was calculated by using current prices available on the websites of local companies providing materials or services. Finally, the environmental and cost factors of the reclaimed wall were compared with those of an equivalent new masonry wall. Results and discussion The strength tests carried out validated the feasibility of reusing the reclaimed wall sections. The results from the life cycle assessment (LCA) models in SimaPro indicated that a wall built with secondary blocks could have a lower environmental impact than one built with new bricks. On the other hand, due to the expensive equipment used in cutting the blocks, the cost of the reclaimed wall was calculated to be nearly 1.9 times the cost of an equivalent wall with new bricks. Conclusions LCA simulation of the new wall was conducted with generic datasets belonging to a broader geographical boundary, while those for the reclaimed wall were performed with data obtained from a small-scale case study conducted to determine the feasibility of reusing demolition waste. This study demonstrated that an efficient process for the recovery and reuse of such materials should include a design proposal that takes into consideration the parameters determined from an inspection of the condition of the debris, an assessment of the potential environmental impacts, and an estimation of the related costs. It was further determined that such a design can be instrumental in offering a less costly and more environmentally friendly alternative to dumping the rubble into landfills. The findings of this study will help fill the current gap in the literature regarding the LCA of walls, with a focus on the strength and condition of the wall material after demolition has taken place.
机译：目的应考虑在每个新项目的设计阶段考虑建筑材料的恢复及其在新建筑中的重用。进行本研究以量化潜在的环境影响以及使用适用的设计解决方案在新建筑中重用废料的经济可行性。方法从俄罗斯圣彼得堡的历史建筑拆迁碎片中回收的墙件被检查了潜在的再利用，通过实验室测试确定了它们的机械优势。配制了建造再生壁的建议，其利用了回收的材料的强度，并提出了克服其缺点的建议解决方案。拟议的墙是借助Simapro软件的潜在环境影响的测试，并且通过在提供材料或服务的当地公司网站上使用当前价格来计算其成本。最后，将再生墙的环境和成本因素与当量新砌体墙的环境和成本因素进行了比较。结果与讨论进行了强度试验，验证了重新开垦墙体部分的可行性。 Simapro的生命周期评估（LCA）模型的结果表明，用次要块构建的墙壁可能比用新砖建造的较低的环境冲击。另一方面，由于用于切割块的昂贵的设备，再生墙的成本计算成具有新砖的等效墙的成本近1.9倍。结论新墙的LCA模拟与属于更广泛的地理边界的通用数据集进行，而从进行的小型案例研究中获得的数据进行了再生壁的那些，以确定重用拆除废物的可行性。本研究表明，恢复和重用这些材料的有效过程应包括考虑从检查条件确定的参数的设计提议，评估潜在的环境影响，以及估计相关费用。进一步确定这种设计可以有助于提供较低昂贵和更环保的替代品，以将瓦砾倾倒入垃圾填埋场。该研究的结果将有助于填补文献中关于墙壁LCA的当前间隙，重点关注拆除后壁材料的强度和条件。

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