| URN | etd-0807124-163530 | Statistics | This thesis had been viewed 52 times. Download 0 times. |
| Author | Sheng-gwo Wu | ||
| Author's Email Address | may2wu@yahoo.com.tw | ||
| 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 | 89 |
| Title | Study on the Difference in Strength of the Front and Tail Samples of Freshly Mixed Concrete Pipes | ||
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| Abstract | Most of the target strengths of ready-mixed concrete used in general public works need to exceed the designed concrete strength; Because all concrete manufacturers are afraid that small variations in the concrete mixing process will cause insufficient concrete compressive strength, which will affect the success or failure of the project, based on this factor, the way to increase the ratio strength will cause the production and manufacturing cost of concrete to increase, and consumers also need to spend a higher cost to buy. If the manufacturer produces concrete, the quality control can be within the standard, and the appropriate concrete ratio adjustment will contribute to the overall engineering economy. The purpose of this study is to explore the strength and reliability of the concrete supplied by the concrete ready mix plant, so as to establish the basis for the quality management of concrete engineering. After collecting the data on the compressive strength of concrete for major public works in northern China, the theoretical method of standard deviation statistics was used to obtain relevant statistical data, so as to discuss the quality of concrete construction. After collecting the strength of concrete compressive test bodies of various strengths, the results are as follows: 1. The design strength of 140kgf/cm² is the highest according to the sampling strength of 341kgf/cm² before the tube obtained from the compression test, and the sampling strength of 199kgf/cm² at the end of the pipe is the lowest. 2. Design strength 210kgf/cm² Because there is only one pouring quantity exceeding 100m³, the statistical data is only one time of pre-pipe sampling, and the number of samples is not enough to effectively present, this item is for reference only. 3. The design strength of 280kgf/cm² is the highest according to the sampling strength of 366kgf/cm² in front of the tube obtained from the compression test, and the sampling strength of 502kgf/cm² at the end of the pipe is the lowest. |
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| Files | indicate access worldwide | ||
| Date of Defense | 2024-07-10 | Date of Submission | 2024-08-10 |