瓦魯斯溪河床土砂拌合水泥之抗壓強度比較

Comparison on Compressive Strength of River Bed Sediment Mixing with Cement in Varus Creek

徐弘明(Hong-Min Shu) ； 邱永仁(Yung-Jen Chiu) ； 黃亘勗(Xuan-Xu Hung) ； 鄭名妤(Ming-Yu Jheng) ； 許中立(Chung-Li Hsu)

《坡地防災學報》 18卷1期 (2019/06) Pp. 48-64

摘要

本研究主要以瓦魯斯溪河床土砂來進行現地拌合試樣製作，並以不同配比、齡期、水灰比進行抗壓強度試驗，做為評估此河道之土砂性質以利後續相關研究或是治理工程參考。綜合研究觀測資料及試驗分析結果呈現粗骨材比重較高、水灰比較低之試體強度增長率較低，粗骨材比重較低水灰比較高之試體增長率較高。因此水泥比例、水灰比為影響現地拌合強度之重要因子。

關鍵字

土砂拌合 ； 水泥 ； 水灰比 ； 抗壓強度

並列摘要

In this study, the local mixed sample was prepared from the sediment of the Varus Creek bed, and the compressive strength test was carried out with different ratios, ages and water-cement ratios. As a major reference for assessing the nature sediment in this river to facilitate subsequent research or governance engineering projects. The comprehensive research observation data and test analysis results show that the growth rate of the compressive strength of this test sample with higher specific gravity and lower water-cement ratio is lower. The proportion of coarse aggregate is lower, and the higher growth rate of sample water-cement ratio is higher. Therefore, the cement ratio and water-cement ratio are important factors affecting the strength of local in-situ mixing.

並列關鍵字

Sediment mixing ； Cement ； Water-cement ratio ； Compressive strength