| URN | etd-0723126-185737 | Statistics | This thesis had been viewed 7 times. Download 0 times. |
| Author | Yu-Ru Lo | ||
| Author's Email Address | No Public. | ||
| Department | Institute of construction technology | ||
| Year | 2025 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 73 |
| Title | Study on the Compressive Strength and Carbon Sequestration Characteristics of Alkali-Activated Materials | ||
| Keyword | |||
| Abstract | This study aims to develop a low-carbon alkali-activated material based on Ground Granulated Blast-Furnace Slag (GGBFS) and investigate the effects of incorporating zeolite, kaolinite, and vermiculite as functional additives at replacement ratios of 10~30% on the mechanical properties and carbon dioxide adsorption capacity of the material. Cube specimens measuring 5cm×5cm×5cm were prepared for compressive strength tests at curing ages of 7 and 28 days. The CO₂ adsorption test was conducted in a self-designed sealed chamber simulating a high-concentration carbon dioxide environment, and the carbon sequestration performance was evaluated using the gravimetric (weight-gain) method. The experimental results revealed a significant trade-off between mechanical strength and CO₂ adsorption performance. The pure GGBFS mixture exhibited the highest compressive strength, reaching 436 kgf/cm² at 28 days, but showed a relatively low CO₂ adsorption rate of 0.52%. In contrast, the mixture containing 30% vermiculite achieved the highest CO₂ adsorption rate of 3.47%, although its porous structure reduced the material's compactness and consequently lowered its compressive strength. Based on the overall evaluation, mixtures containing 10% kaolinite or 10% vermiculite are recommended as the optimal replacement ratio, as they maintain adequate structural strength (>320 kgf/cm²) while significantly enhancing the environmental value of the material. These findings demonstrate the potential for promoting industrial waste reutilization and achieving sustainable environmental development. |
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| Files | indicate access worldwide | ||
| Date of Defense | 2026-07-07 | Date of Submission | 2026-07-23 |