EPiC database - Aluminium bar

This material is part of the free Environmental Performance in Construction (EPiC) Database. The EPiC Database contains embodied environmental flow coefficients for 250+ construction materials using a comprehensive hybrid life cycle inventory approach.Aluminium is a ductile non-ferrous metal. It is a lightweight metal with an average density of 2.7 t/m³. It is durable, corrosion resistant, a good reflector of both visible and infrared radiation, and highly recyclable. Aluminium alloys are used in the construction industry as raw aluminium typically lacks the strength required for most of its applications.Aluminium is extracted from bauxite, its common ore, through an extensive process. Bauxite is converted to aluminium oxide through the Bayer process. Aluminium oxide (or Alumina) is then converted to aluminium billets by the electricity-intensive Hall-Héroult process, made of 99% aluminium, which can be further purified if needed. Aluminium billets are then thermoformed into the relevant shape. Powder coating provides additional durability, custom colour and improved performance.Aluminium is commonly used as a construction material, notably as cladding, structural and window framing, and as a thermal reflector. Aluminium bars are typically extruded and can be used as a finishing product (flat bars) and as ventilation grilles.

本材料系环保性能在建筑（EPiC）数据库的免费资源之一。EPiC数据库汇聚了超过250种建筑材料的环境流系数，采用全面综合的混合生命周期清单方法进行评估。铝作为一种延展性良好的非铁金属，其密度平均值约为2.7吨/立方米，轻便而耐久，具备良好的耐腐蚀性、可见光与红外辐射反射能力，且具有较高的可回收性。在建筑行业中，铝合金的应用尤为广泛，因为原生铝通常缺乏满足大多数应用需求的强度。铝的提取过程源自其常见矿石——铝土矿，经过一系列复杂的工艺过程。铝土矿通过拜耳法转化为氧化铝，随后通过电耗巨大的霍尔-埃鲁法进一步转化为铝锭，铝锭含有99%的铝，如需进一步纯化，则可进行。铝锭随后经过热成型处理，形成所需的形状。粉末涂层则为其提供了额外的耐用性、定制色彩以及性能提升。铝作为一种常见的建筑材料，广泛应用于建筑外饰、结构框架、窗户框材以及热反射材料。铝棒通常经过挤压成型，可作为最终产品（如平板铝棒）和通风栅格使用。