於高嶺土中進行電滲透化學灌漿試驗經過去許多的研究已能大幅提升正、負極附近的土壤強度。對於此工法的膠結機制多以其力學試驗結果、鈣離子濃度、酸鹼值的變化來推測其硬化機制可能為卜作嵐反應，但並無經由試驗找到其確切的生成物及膠結硬化的有利的證據。本研究將電滲透化學灌漿試驗後的正、負極取樣，透過X光繞射分析其中可能所含的化合物，在依分析結果模擬製作養護試體，於不同齡期時，透過X光繞射分析去觀察試體中的化合物變化，並配合室內錐貫入試驗來同步掌握試體的強度變化。除此外，也配合電子顯微鏡來觀察土壤微觀的結構變化及透過能量散佈分析儀來驗證土壤顆粒間各元素的含量變化。研究結果顯示，電滲透正、負極附近的試體含有氫氧化鈣，氫氧化鈣在鹼性環境中會較快的隨時間被消耗掉，而力學強度隨之增加，由電子顯微鏡也看出土壤微結構隨養護土壤間被水化物漸漸密佈的過程，並由能量散佈分析中發現土粒間的膠結物鈣矽比與一般C-S-H膠體相近，由以上結果認為高嶺土電滲透灌漿膠結機制是由於卜作嵐反應而來並形成C-S-H膠體。

The results of previous studies showed that it is able to improve soil strength near cathode and anode using electro-osmosis chemical treatment. In addition, so far, mechanical test, calcium ion concentration, and pH changes have been widely used to observe the cementation mechanism in electro-osmosis chemical treatment. However, these methods are not able to provide the exact information about chemical agents created in experiments, which can be used to make sure that the cementation mechanism is the pozzolanic reaction.
In this study, the samples of electro-osmosis chemical treatment were firstly taken to perform X-ray diffraction analyses for examining chemical agents. The curing specimens were then prepared. For different curing times, chemical agents were observed by X-ray analyses, the soil strength was determined by cone penetration tests (CPT), the micro-structure of soil was observed by the electron microscope, and chemical elements in soil particles were verified by the energy dispersive spectrometer.
The results show that the soils near cathode and anode contain calcium hydroxide. The curing time elapses, the amount of calcium hydroxide reduces gradually in alkaline environment while the soil strength is increased, the micro-structure of soil is covered by an increasing amount of hydrate, and the Ca/Si ratio of cementation between soil particles is very similar general CSH colloid. Based on the above results, it is demonstrated that cementation among soil particles is CSH colloid and developed with time due to the pozzolanic reaction.

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