綠色再生資源於水路建材之應用

Abstract

農田水路提供農田灌溉所需用水，其結構穩定性相當重要，傳統水路以土堤作為建材，優點為可就地取材相當方便，但會有崩塌以及滲漏的疑慮，因此現今許多灌溉渠道為了方便整治，大多採用三面光混凝土建造方式，為現今在台灣農田水路常看到的施工做法。混凝土為以水泥，水，粗、細骨材，以適當比例攪拌，隨時間硬化而成的建築材料，和一般土堤渠道相比，其結構堅固，且不易滲漏，是能提供穩定輸水的材料。然而水泥在生產過程中，會排放大量的二氧化碳，且骨材也需自大自然開採而得，對環境皆造成不良影響，因此本研究在尋找其他可替代水泥以及骨材的材料，其研究對象以農業以及工業廢棄物為主，除了減少對環境的破壞，又可解決廢棄物處理問題，並研究所開發的混凝土材料的工作度，希望能達到兼顧強度和施工便利性，增加材料的應用性。

Farmland waterway transports water for agricultural irrigation. The stability is important. In former times, earth was used to build the channel for irrigation. The advantage is that earth is conveniently obtained. The disadvantage is that it may collapse or cause the leakage of water. Therefore, concrete is commonly used to build channel nowadays. The advantage is that it is firm and hardly cause leakage. Concrete is made up by mixing water, cement, fine aggregate, coarse aggregate together with certain ratio. However, the production of cement will generate carbon dioxide. The extraction of aggregate would destroy natural environment. Therefore, in this research, agricultural and industrial wastes are used to substitute cement and aggregate. It not only solves the problem of the disposal of waste but also prevents from the destruction to the environment. Furthermore, the slump and compressive strength are both studied to make the green concrete more applicable.