| Summary: | 碩士 === 國立高雄應用科技大學 === 土木工程與防災科技研究所 === 103 === he mortar material of the study was to choose lime, river sand, oyster shell power, red syrup, rice husk ash and water sludge as the basic material and we search for the best historical monumental proportion through the various proportions of red syrup, rice husk ash and water treatment sludge. Besides, we compare with mortar material after adding different proportion of red syrup, rice husk ash and water sludge and even observe their utility, compressive strength and the variety of durability. On the other hand, we also compare the cement mortar such as flying ash as well as the granulated blast furnace slag in place of cement and the variance of the compressive strength appeared on the mortar of cement in the early and late period.
According to the features of mortar material and experimental data, we expected to enhance the application of repairing the binding material of historical monument and the consideration of intensity and durability could be served as the reference of the relevant repairing work for maintaining historic monument.
Moreover, the results of research showed that the features of coagulation of the syrup not only made the effect increase by 70~121% among the mortar coagulating material but also facilitated the tissue of hydration to be much denser. These features benefited the long development of the strength. The characteristics of high absorbing water of rice husk ash upgrade the compressive strength of mortar by 72% within 56 days in the early period. Thus, the surface of round sphere of purified water and sludge can enhance the utility and plasticity, C-S-H gel was formed by the continual structure and the pores of filling gel, which not only made the structure of gel much denser but increased the strength of gel more than five times in the late period.
The results indicated that if substituting the flying ash and the granulated blast furnace slag for the cement, the compressive strength of cement mortar was roughly ten times, which was adding the mixure proportions of water treatment sludge by 75%.
As the perspectives of durability as concerned, adding some of the repairing material like the modernizing material of flying ash and the granulated blast furnace slag increases the binding strength on the surface and even enhance the possible impact against the environment. The result of research was worthy of being as the reference for the architectural material of maintenance.
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