| URN | etd-0824123-225004 | Statistics | This thesis had been viewed 37 times. Download 1 times. |
| Author | Po-Hao Huang | ||
| Author's Email Address | No Public. | ||
| Department | Department of construction & spatial design | ||
| Year | 2023 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 64 |
| Title | Study on the Properties of Cement Mortar by Early Strength Agent Admixture | ||
| Keyword | |||
| Abstract | In this study, cement mortar is used as the base with other materials are added to test the compression and slump tests. The cement mortar is added with early strength agent, magnesium oxide, blast furnace stone, fly ash, cement, coarse sand, water reducing agent and resin. The dosage of 13%, 15%, 17% early strength agent and 5%, 7%, and 9% of aluminum hydroxide or sodium sulfate, were added to the original cement mortar, and the slump test was carried out with the same water content. Afterwards, three sets of 5*5*5cm square specimens were made to test the compressive strength, and were tested and recorded in three curing time of 1 hour, 7 days, and 28 days. From the test results, it can be seen that in the aluminum hydroxide compression test, more accelerators and aluminum hydroxide strength can be increased. The stress rises slowly at 7 days, and the strength will increase significantly at 28 days. The strength of more early strength agents, aluminum hydroxide and sodium sulfate can be increased, and the strength rises slowly at 28 days. The strength of the early strength agent is higher because of the addition of more early strength agents, but the strength rises slowly at 28 days. Finally, it can be It is known that the compressive strength of aluminum hydroxide is better than that of sodium sulfate and simply adding early strength agent. In the test of sodium sulfate, more early strength agent and aluminum hydroxide can be added to improve the compressive strength of sodium sulfate itself. However, the slump fluidity of sodium sulfate is better in the slump test. |
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| Files | indicate access worldwide | ||
| Date of Defense | 2023-07-12 | Date of Submission | 2023-08-24 |