| URN | etd-0723126-184910 | Statistics | This thesis had been viewed 5 times. Download 2 times. |
| Author | Xuan-Long Chen | ||
| 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 | 87 |
| Title | Investigation of the Compressive Strength and Carbon Sequestration Characteristics of Magnesium Potassium Phosphate Cement | ||
| Keyword | |||
| Abstract | Three types of mineral materialsˇXzeolite, kaolin, and vermiculiteˇXwere incorporated into the mix design at replacement ratios of 10%, 20%, and 30%. Under a constant water content, $5\text{ cm} \times 5\text{ cm} \times 5\text{ cm}$ cubic specimens were fabricated to undergo compressive strength testing at curing ages of 7 and 28 days, alongside carbonation testing at 7 days. This was conducted to investigate the effects of different additives on the engineering properties and carbon dioxide adsorption capacity of potassium magnesium phosphate cement (KMPC) mortar. Experimental results indicate that specimens incorporating zeolite exhibited superior compressive strength at 7 days, suggesting that zeolite facilitates early-strength development. By 28 days, however, their strength growth trend plateaued, showing relatively limited late-stage increment. Specimens with kaolin showed less pronounced strength improvement at 7 days but experienced significant growth by 28 days, indicating that kaolin contributes more effectively to late-stage strength development. A similar trend was observed in the vermiculite specimens, where early-strength development was slower, but strength increased substantially by 28 days, demonstrating favorable late-stage strength development capability. In conclusion, this study confirms that the appropriate addition of natural mineral materials not only improves the engineering properties of potassium magnesium phosphate cement mortar but also enhances its carbon dioxide adsorption capacity. Among the tested materials, vermiculite exhibits the greatest potential for carbon sequestration, serving as a key reference for the future development of low-carbon, high-performance cementitious materials. |
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| Files | indicate access worldwide | ||
| Date of Defense | 2026-07-07 | Date of Submission | 2026-07-23 |