全球建筑的原子基石
Jonathan M Broyles1, Matt A Jungclaus1, Danielle N Beatty2
1Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States.
Environmental science & technology
|March 10, 2026
概括
建筑物主要由六种元素组成:氧气,,,碳,铁和,占建筑物质量的97%. 这种元素组成在全球范围内是一致的,有助于城市采矿和循环经济倡议.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 城市规划 城市规划
背景情况:
- 建筑物消耗大量的材料和自然资源,对环境产生影响.
- 了解建筑构成对于发展循环经济和减轻环境影响至关重要.
- 化学成分的知识支持城市采矿资源管理和元素回收.
研究的目的:
- 在全球范围内量化整个建筑物的材料使用强度 (MUI) 和原子使用强度 (AUI).
- 为了确定全球建筑物的基本元素组成.
- 评估建筑元素构成在不同地区和类型学的变化.
主要方法:
- 对1028个整个建筑物的MUI (kg/m2) 和AUI (mol/m2) 的估计.
- 分析了全球八个地区的建筑构成.
- 基于建筑类型学的元素组成的比较.
主要成果:
- 建筑主要由六种元素组成:氧气,,,碳,铁和.
- 这六种元素约占全球建筑物总质量的97%.
- 建筑物的平均AUI在不同全球地区和建筑类型中显示出最小的差异.
结论:
- 该研究提供了关于建筑物的元素组成的全面数据集.
- 调查结果支持在建筑行业推进城市采矿和循环经济战略.
- 一致的元素构成为资源回收和可持续建筑实践提供了基础.
相关概念视频
Types of Building Separation Joints
664
Building separation joints divide large or complex building structures into smaller, discrete units that can move independently. These joints are categorized into three types: volume-change joints, settlement joints, and seismic separation joints.
Volume-change joints address the effects of expansion and contraction due to temperature and moisture variations. They are strategically placed at discontinuities in a building's mass where cracking is most likely and are spaced about 150 to 200...
Volume-change joints address the effects of expansion and contraction due to temperature and moisture variations. They are strategically placed at discontinuities in a building's mass where cracking is most likely and are spaced about 150 to 200...
664
Reinforced Brick Masonry
1.9K
Reinforced brick masonry is an advanced construction technique that enhances the structural integrity of brick walls by incorporating steel reinforcements. These reinforcements are either placed within the hollow cores of bricks or sandwiched between two layers of masonry, known as wythes, and are then secured in place with grout. Grout is a fluid mixture composed of Portland cement, aggregate, and water, providing the necessary bonding agent for the steel and brick.
To fortify brick walls...
To fortify brick walls...
1.9K
Atomic Structure
89.2K
The Greek philosopher Democritus proposed that everything on Earth is made up of tiny particles called atomos, Greek for "indivisible," from which the modern term "atom" is derived. In the 19th century, John Dalton proposed the atomic theory that is still largely correct today. He put forth five postulates to explain how atoms made up the world around us. (1) All matter is composed of infinitely small particles or atoms. (2) All atoms of a given element are identical to one...
89.2K
Atomic Structure
214.5K
Overview
214.5K
Design Example: Sustainability in Concrete Building
451
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
451
Masonry Loadbearing Walls
506
Masonry load-bearing walls, constructed from materials like brick, stone, or concrete masonry units, serve as a crucial component in building structures by supporting the loads from floors and roofs and transferring them to the foundation. These walls, known for their compressive strength, can be reinforced or unreinforced to suit different building needs, accommodating both the dead and live loads while maintaining safety through lower working stresses compared to the materials' ultimate...
506


