本研究係以氫氧化鈉及矽酸鈉溶液作為激發爐石活性之激發劑，改變鹼激發量及水玻璃模數與水固比，以探討新拌及硬固工程性質，並輔以田口試驗法分析上述三因子於及不同拌合時間對其工程性質之影響程度，其次再探討不同養護環境對於工程性質之影響，最後再分別添加石膏、輸氣劑，及飛灰取代爐石進行探討對無機聚合物之性質影響。
研究結果顯示：(1)水玻璃模數(M.S.)介於0.4 ~ 1.2之間與提高水固比可使新拌漿體具有較佳流動性，但M.S. > 1.2時會發生假凝現象而降低流動性。(2)未添加矽酸鈉溶液時(M.S. = 0)凝結時間較短，隨著水玻璃模數提高而延緩其凝結時間，但鹼激發劑濃度過高(M.S. > 1.6)會發生速凝現象。(3)未添加矽酸鈉溶液時乾縮量最小，但隨著鹼激發劑濃度增加而加大。(4)抗壓強度、動態彈性模數以及剪力模數與超音波波速會隨減少用水量而提升。(5)無機聚合物張力強度極低，僅為抗壓強度之0.2 % ~ 5.8 %。(6)改變激發劑濃度對於熱傳導係數之變化較小；改變液固比可使熱傳導係數明顯降低。(7)田口試驗法中，水玻璃模數對於乾縮量之影響最為顯著。(8)田口試驗法中，顯示對於影響抗壓強度、劈裂強度、動態彈性模數及剪力模數最為顯著之因子為水固比。(9)田口試驗法中，對於超音波波速影響最顯著因子為拌合時間、其次為水固比。(10)添加輸氣劑劑量2.5 %時可降低25.8 %之乾縮量及對於抗壓強度、動態彈性與剪力模數、超音波波速、熱傳導係數等工程性質影響較小。(11)添加石膏對於抑制乾縮之效果不佳，但添加1 %時可使抗壓強度增加。(12)當飛灰取代量增加時，其抗壓強度及超音波波速與熱傳導係數皆隨著取代量增加而下降。

This research is focused on the production of geopolymer using the sodium hydroxide and sodium silicate. The research subjects are divided into 6 parts. The first is to study the effect of using various parameters of geopolymer mixing proportions on the engineering properties. The second is to analyze and to verify the result of the first part by using Taguchi method. The third is to discuss the influence of curing environment on the engineering properties of geopolymer. The fourth part is to study the adding the gypsum and the fifth part is to study the adding air-entrainment agent with different ratio of slag weight. The final subject is to investigate the effect of engineering properties of geopolymer due to the utilization of fly ash to replace slag as the mixing material.Twelve conclusions can be draw as the following. (1)The flowability can be enhanced by using the M.S. (modulus of water-glass) value ranged from 0.4 to 1.2 and by increasing the L/S (liquid of solid) ratio. (2) The geopolymer which is not mixed with the sodium silicate has the fastest setting time. Additionally, the increasing of setting time occurred due to the enhancing of M.S. value, but if the M.S. value is higher than 1.6 it will result the acceleration of setting time. (3) The geopolymer without using sodium silicate results in the lowest of shrinkage, on the other, hand the shrinkage will increase when the M.S. value is raised. (4) The compressive strength, dynamic elastic modulus, shear modulus and ultrasonic pulse velocity will increase due to the enhanced of the alkali activator concentration. (5) The tensile strength resulting from the experimental work is very low which is about 0.23% to 5.874% of the compressive strength. (6) The effect of adding various concentration of alkali activators on thermal conductivity is not significant, but the L/S ratio gives the significant effect on the thermal conductivity. (7) In Taguchi method, the modulus of water glass is the dominant factor to change the shrinkage of the material. (8)The liquid/solid ratio is the most important factor on compressive strength, splitting tensile strength, dynamic elastic and shear moduli in the Taguchi method analysis. (9)The mixing time is the most important factor for increasing the UPV (ultrasonic pulse velocity) development and the second factor is L/S ratio. (10)The optimum dosage of AEA (air-entrainment agent) is 2.5 % by slag weight because it can decrease the drying shrinkage significantly. (11)The performance of adding the gypsum to inhibit the drying shrinkage is not good,but adding 1 % of gypsum can enhance the compressive strength. (12)The increasing of FA (fly ash) replacement ratio results in the lower value of compressive strength, UPV and coefficient of thermal conductivity.

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