不同粗細骨材成分比與卜作嵐材料對高性能混凝土性質影響之研究

Effect of S/A Ratio and Pozzolanic Material on the Properities of High Performance Concrete

黃乃明(Nai-Min Huang) ； 江慶堂(Ching-Tarng Chiang) ； 呂逸忻(I-Hsin Lu) ； 翁詩涵(Shin-Han Weng)

《中華技術學院學報》 28期 (2003/10) Pp. 23-37

https://doi.org/10.7095/JCIT.200310.0023

摘要

本研究計畫主要探討骨材與卜作嵐材料對高性能凝土性質的影響。試驗變數包含不同粗細骨材成分比與不同卜作嵐材料替代量。利用坍、坍流度、以及箱型槽通過高度來評估高性能混凝土新拌性質和各變數間之關係，並進行壓力強度和彈性模數試驗以評估其力學性質。由試驗結果可以發現在骨材不同S/A變數下，雖力學性質改變並不大，但由新拌性質試驗結果可以發現，當S/A值增加時，可改變其工作性。而添加卜作嵐材料對工作性與晚期強度有正面的效益，其中以爐石的效果最佳。

關鍵字

粗細骨材成分比 ； 卜作嵐材料 ； 混凝土工作性

並列摘要

This paper is to study the effect of the workability of high performance concrete with aggregate and pozzolanic materials. Test variables include the sand over aggregate (S/A) and the pozzolanic material replacement. The slump test, slump flow test ,and passing height from box test were performed to correlate the effect of the workability. And test for compressive strength and elastic modulus. The test results indicate that the compressive strength and elastic modulus are not significantly affected by S/A ratio computed from a constant aggregate volume, but are influenced by the elastic properties of the paste. The workability test results indicate that can increase of S/A ratio can improve workability of HPC. Slag is better than fly ash in HPC mixture as far as workability is concerned.

並列關鍵字

sand over aggregate (S/A) ； pozzolanic material ； concrete workability