Kern Andrea Parisi, Amor Luciano Vargas, Angulo Sergio Cirelli, Montelongo Alfredo
Universidade do Vale do Rio dos Sinos, Av Unisinos, 950, São Leopoldo 93-020-000, Brazil.
Universidade do Vale do Rio dos Sinos, Brazil.
Waste Manag. 2018 Aug;78:446-455. doi: 10.1016/j.wasman.2018.05.057. Epub 2018 Jun 23.
In Brazil, the use of wood in construction is primarily temporary, and it can represent a great percentage of construction waste. It is typically discarded with minimal reuse or recycling. As landfill wood disposal could result in methane emissions and/or leaching of hazardous constituents polluting water or soil, the implementation of temporary wood waste reduction strategies must be a critical issue for local construction companies. To manage and control wood waste generation, including setting some reduction goals, it is necessary to identify the influencing factors and ways to quantitatively predict their relative contributions. This study uses a multiple regression statistical model to estimate the amount of temporary wood waste generated in the construction of high-rise buildings by considering the influencing factors related to the design/construction as well as site and safety installations. The case study includes 22 high-rise residential buildings. The regression model predicted approximately 89% of the factors involved in the generation of wood waste in similar constructions. The dependent variables that had an influence on the amount of wood waste are related to design features ('number of floors'), structural construction system ('in situ moulded concrete volume'), and site and safety installations ('site wood fence' and 'wood use rate'). Ways of minimising wood waste generation and the contributions of each type of temporary wood use were discussed.
在巴西，建筑中木材的使用主要是临时性的，并且它在建筑废弃物中可能占很大比例。通常，这些木材在极少被再利用或回收的情况下就被丢弃了。由于将木材填埋处理可能会导致甲烷排放和/或有害成分的浸出，从而污染水或土壤，因此实施减少临时性木材废弃物的策略对于当地建筑公司来说必定是一个关键问题。为了管理和控制木材废弃物的产生，包括设定一些减少目标，有必要识别影响因素以及定量预测其相对贡献的方法。本研究使用多元回归统计模型，通过考虑与设计/施工以及场地和安全设施相关的影响因素，来估算高层建筑施工中产生的临时性木材废弃物量。案例研究包括22栋高层住宅建筑。该回归模型预测了类似建筑中木材废弃物产生所涉及的约89%的因素。对木材废弃物量有影响的因变量与设计特征（“楼层数”）、结构施工体系（“现浇混凝土体积”）以及场地和安全设施（“场地木围栏”和“木材使用率”）有关。讨论了减少木材废弃物产生的方法以及各类临时性木材使用的贡献。
