頁籤選單縮合
題 名 | 材料溫度對高性能混凝土工作性及抗壓強度之影響=The Influence of Material Temperature on the Workability and the Strength of High Performance Concrete |
---|---|
作 者 | 郭文田; 潘煌鍟; | 書刊名 | 技術學刊 |
卷 期 | 15:4 2000.12[民89.12] |
頁 次 | 頁559-564 |
分類號 | 440.327 |
關鍵詞 | 材料溫度; 工作性; 強度; Material temperature; Workability; Strength; |
語 文 | 中文(Chinese) |
中文摘要 | 高性能混凝土工作及強度很容易受拌合材料之初始溫度影響。骨材如拌合水在不同溫度拌合時,相同配比之高性能混凝土有不同流動性質。研究結果顯示採用L型流度試驗來表示工作性比較可靠,且只要適當拌合技巧,一般小型拌合鼓也能製造高性能混凝土。當拌合後混凝土溫度介於35~45℃時,L型流度值變化敏感,且此時有較低之抗壓強度,對混凝土品質管制尤需注意。高性能混凝土初始拌合溫度要控制在35℃以下,以獲得品質穩定且性質較好之混凝土。 |
英文摘要 | The workability and the strength of high performance concrete (HPC) depend on the temperatures of the mixing materials, especially for the aggregates and the water. At different mixing temperatures but the same mix proportions, there are variations in workability. Results show that the L-type flow test had better be chosen to represent the reliability of the workability of HPC. Meanwhile, the drum mixer can also be used to product a high quality HPC at a moderate mixture technique. When the temperature of HPC is between 35℃ and 45℃, the flow value of the L-type flow test is more sensitive and the strength of HPC is lower. To obtain better quality control and material properties of HPC, the temperature of HPC should be maintained below 35℃. |
本系統中英文摘要資訊取自各篇刊載內容。