Graduate Thesis Or Dissertation
A Mathematical Model for Predicting the Carbon Sequestration Potential of Exposed Ordinary Portland Cement (OPC) Concrete 公开 Deposited
- Abstract
This study concerns the development of a simple mathematical model that calculates the theoretical carbon sequestration potential of exposed ordinary portland cement (OPC) concrete. OPC concrete sequesters non-trivial amounts of carbon dioxide (CO2) via carbonation – a chemical reaction between cement paste and atmospheric CO2. Formulated by the reaction chemistries of cement hydration and carbonation, the model accounts for cement type and content, exposure, time, and type and quantity of supplementary cementitious materials (SCMs). Once validated with data from literature, the model is implemented to investigate the effect of these factors and the influence of compressive strength and geometry, namely surface-area-to-volume (SA/V) ratio, on total carbon sequestration (kg CO2) of exposed concrete elements. Results demonstrate that (a) low tetracalcium aluminoferrite (C4AF) cements, (b) compressive strength, (c) high CO2 exposure, (d) no SCMs, (e) time, (f) high SA/V ratios, and (g) indoor environments enhance the in situ carbon sequestration of exposed OPC concrete.
- Creator
- Date Issued
- 2017
- Academic Affiliation
- Advisor
- Committee Member
- Degree Grantor
- Commencement Year
- Subject
- 最新修改
- 2020-02-13
- Resource Type
- 权利声明
- Language
关联
单件
缩略图 | 标题 | 上传日期 | 公开度 | 行动 |
---|---|---|---|---|
aMathematicalModelForPredictingTheCarbonSequestrationPote.pdf | 2019-11-18 | 公开 | 下载 |