無機聚合物膠結水庫淤泥之性能探討

Study The Properties of Geopolymer Cement Reservoir Sludge

童暐翔(Wei-Hsiang Tung)

指導教授 ： 吳傳威

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00600

摘要

由於自然及人為因素的交攻，臺灣水庫面臨嚴重的淤積問題，除相對縮短水庫的使用年限之外，實質上更造成環保問題。本研究即以此為題，嘗試進行水庫淤泥再利用之可行性探討。前期研究即曾以早強、低耗能、無汙染且耐久性佳之「無機聚合物」為膠結材，固化水庫淤泥。本研究首先以不同比例之淤泥掺合無機聚合物製成試體，進行力學性能試驗。同時，另配合同儕試驗，採用以飛灰取代部分變高嶺土之無機聚合物進行固化探討。實驗結果顯示，水庫淤泥經無機聚合物膠結後，其固化體之強度與膨脹率等，皆高於預期，甚至超越一般混凝土。此外，為進一步探討固化材料之應用性，本研究另製作直徑20㎝，厚度4.5㎝之實心圓餅試體，依照CNS12514標準升溫曲線進行高溫延時耐火試驗。實驗結果顯示加熱1小時後試體背溫未超過100℃，符合CNS11227 防火規範及甲種A級防火門規定。

關鍵字

無機聚合物(Geopolymer) ； 抗壓強度 ； 石門水庫淤泥

並列摘要

Due to the natural and human factors, siltation of reservoirs in Taiwan faced serious problems. Not only relatively reduced life of the reservoir, but also essentially caused environmental problems. The present study thus focused on this subject, to explore the feasibility of reusing the reservoir sludge. Previous studies have made use of the geopolymer, known to have early strength, low energy consumption, less pollution and good durability, to cement reservoir sludge. At first, different proportions of sludge were added into the ordinary formula geopolymer to test their mechanical properties. In the mean time, fly ash was applied to replace the meta-kaolin in the geopolymer and did the same experiments. The results revealed that the strength as well as the expensive rate were both better than expected. The strength was ever higher than regular concrete. Finally, in order to investigate the practical usage of the formula, round solid cakes with diameter 20 cm and 4.5cm thickness specimen were made to test the property of fire resistance. A heating device was set up to heat the specimen as per the CNS12514 specification. The results shows that the back temperature of the specimen was lower than 100℃, satisfied the requirements of the fire code CNS11227, and also meet the Class A Fire door requirements.

並列關鍵字

Shihmen Reservoir Sludge ； Geopolymer ； Compressive Strength

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