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Design Optimization of Sustainable and Resilient Concrete Mixtures

可持续和弹性混凝土混合物的设计优化

基本信息

批准号：
1562557
负责人：
Wil Srubar III
金额：
$ 50万
依托单位：
University of Colorado at Boulder
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2016
资助国家：
美国
起止时间：
2016-08-01 至 2020-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1562557&HistoricalAwards=false
关键词：
Design Optimization Sustainable Resilient Concrete

项目摘要

Worldwide, concrete is the most prevalent construction material and the second-most consumed material on Earth after water. Given the global environmental implications of its increased use, structural engineers are now faced with critical decisions regarding the design and specification of concrete mixtures that meet environmental, economic, structural, and durability performance criteria. Conventional concrete mixture design methodologies employ time-intensive, trial-and-error approaches, which ultimately yield acceptable (but non-optimal) designs of concrete mixtures. This Design of Engineering Material Systems (DEMS) award will support fundamental research to create, validate, and test a new paradigm for the design of concrete mixtures that are most economical, resilient, and environmentally sustainable for specific infrastructure applications. Optimized concrete mixtures will simultaneously reduce environmental impacts and ensure long-term durability of civil infrastructure by promoting responsible, economical natural resource utilization. This project will involve industry professionals in the development, testing, and validation of the new design methodology, which will accelerate its implementation in practice. In addition, the complementary education and outreach efforts will help cultivate the next generation of engineers who will be committed to ensuring both the sustainability and resilience of civil infrastructure.Using a many-objective optimization testbed, this work will define, formulate, and link mathematical models that relate concrete mixture proportions to fresh- and hardened-state properties. These properties, along with in-service exposure data, will be used to characterize and quantify in-service performance as it relates to sustainability (e.g., environmental impact) and chronic-hazard resilience (e.g., corrosion resistance, freeze-thaw resistance) in multiple spatial and temporal domains. Multi-dimensional visualizations will be developed to quantify and elucidate design-decision tradeoffs between performance, cost, and environmental sustainability for candidate design solutions that meet specific design goals. Concrete material producers, materials scientists, and professional structural engineers will participate in a series of design-related workshops that will help inform, test, and rigorously validate the novel design methodology. In addition to considering decision-maker preferences, a significant effort will be placed on improving the optimization approach, quantifying uncertainty, and conducting global sensitivity analyses to identify and manipulate the most influential parameters for the design of sustainable and resilient concrete mixtures.

在世界范围内，混凝土是最普遍的建筑材料，也是地球上仅次于水的第二大消耗材料。考虑到其增加使用对全球环境的影响，结构工程师现在面临着有关满足环境、经济、结构和耐久性性能标准的混凝土混合物的设计和规格的关键决策。传统的混凝土混合物设计方法采用耗时的试错方法，最终产生可接受（但非最佳）的混凝土混合物设计。该工程材料系统设计 (DEMS) 奖项将支持基础研究，以创建、验证和测试针对特定基础设施应用最经济、最具弹性和环境可持续性的混凝土混合物设计新范例。优化的混凝土混合物将同时减少环境影响，并通过促进负责任、经济的自然资源利用来确保民用基础设施的长期耐用性。该项目将让行业专业人士参与新设计方法的开发、测试和验证，这将加速其在实践中的实施。此外，互补的教育和推广工作将有助于培养下一代工程师，他们将致力于确保土木基础设施的可持续性和弹性。这项工作将使用多目标优化试验台，定义、制定和链接数学模型，将混凝土混合物比例与新鲜和硬化状态特性联系起来。这些属性以及使用中的暴露数据将用于表征和量化使用中的性能，因为它与多个空间和时间域中的可持续性（例如环境影响）和慢性危害恢复力（例如耐腐蚀、抗冻融能力）相关。将开发多维可视化，以量化和阐明满足特定设计目标的候选设计解决方案的性能、成本和环境可持续性之间的设计决策权衡。混凝土材料生产商、材料科学家和专业结构工程师将参加一系列与设计相关的研讨会，这将有助于告知、测试和严格验证新颖的设计方法。除了考虑决策者的偏好外，还将大力改进优化方法、量化不确定性并进行全局敏感性分析，以确定和操纵对可持续和弹性混凝土混合物设计最有影响力的参数。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

On the Theoretical CO2 Sequestration Potential of Pervious Concrete

DOI：
10.3390/infrastructures4010012
发表时间：
2019-03
期刊：
Infrastructures
影响因子：
2.6
作者：
Ethan Ellingboe;J. Arehart;W. Srubar
通讯作者：
Ethan Ellingboe;J. Arehart;W. Srubar

Cradle-to-gate CO2e emissions vs. in situ CO2 sequestration of structural concrete elements

从摇篮到大门的二氧化碳当量排放与结构混凝土构件的原位二氧化碳封存

DOI：
10.1016/j.enbuild.2018.02.042
发表时间：
2018
期刊：
Energy and Buildings
影响因子：
6.7
作者：
Souto-Martinez, Adriana;Arehart, Jay H.;Srubar, Wil V.
通讯作者：
Srubar, Wil V.

A mathematical model for predicting the carbon sequestration potential of ordinary portland cement (OPC) concrete

预测普通硅酸盐水泥（OPC）混凝土碳汇潜力的数学模型

DOI：
10.1016/j.conbuildmat.2017.04.133
发表时间：
2017
期刊：
Construction and Building Materials
影响因子：
7.4
作者：
Souto-Martinez, Adriana;Delesky, Elizabeth A.;Foster, Kyle E.O.;Srubar, Wil V.
通讯作者：
Srubar, Wil V.

On the theoretical carbon storage and carbon sequestration potential of hempcrete