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Design Example: Sustainability in Concrete Building
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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...
161
Design Example: Managing Concrete Workability
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This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
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Portland Cement
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Portland cement is the essential binding ingredient in concrete, made from finely ground materials including lime, iron, silica, and alumina. Lime is derived primarily from limestone, marble, marl, seashells, and clays, which also supply iron and alumina, while silica is sourced from sand, chalk, and bauxite. Contemporary manufacturing of Portland cement is a significant source of carbon dioxide emissions, prompting research into reducing its content in concrete through alternative...
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使用生命周期镜头开发发电厂材料.
Amanda Quadling1, David Bowden1, Chris Hardie1
1Materials Division, UK Atomic Energy Authority, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, UK.
概括
用于能源生产的球形托卡马克 (STEP) 需要先进的材料来承受极端条件. 研究重点是减少激活和高流量弹性,以实现可持续的核聚变能源.
科学领域:
- 核工程 核工程是指核工程.
- 材料科学 材料科学 材料科学
- 核聚变能源研究研究
背景情况:
- 能源生产的球形托卡马克 (STEP) 面临着前所未有的磁力,热力,机械和环境负荷.
- 在STEP中的容器材料将经历极端的中子峰值剂量率 (每原子每秒10^-6个位移).
研究的目的:
- 定义STEP计划的材料战略,重点是减少激活和高流动性弹性.
- 涵盖材料的整个生命周期,包括组合选择,微结构开发,建模和生命周期结束策略.
主要方法:
- 在发电厂的权力权衡空间内面向材料的降低选择.
- 开发先进的铁性-马丁性结构钢.
- 应用"设计根据基本原理"的中大尺度建模方法.
- 对可持续运营的废物减排路线的调查.
主要成果:
- 已经制定了一项材料战略,优先考虑减少激活和高流动性弹性.
- 一种先进的铁性-马丁性钢正在开发中.
- 中等尺度建模提供了一个基本的设计方法.
- 确定了潜在的废物减排策略.
结论:
- 材料战略对于STEP计划的成功至关重要.
- 先进的材料和建模是实现可持续核聚变能源的关键.
- 解决整个材料生命周期,确保了运营可行性和可持续性.


