The Feasibility Study on Using Recycled Construction Waste

• Main Author: 丁怡君
• Other Authors: 王華弘
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/23788715753573939278

碩士 === 明新科技大學 === 土木工程與環境資源研究所 === 99 === The use of recycled materials collected and crushed after the construction demolition becomes critical today because of the global energy crisis and the demand for the sustainability development of the nation. Using recycled construction waste helps preserving natural resources and also creating a promising industry. Since Taiwan is surrounded by ocean and tons of recycled materials are contaminated by chloride ions, the recyclability of construction waste is questionable. According to the national standard of concrete construction and practice, there exists a tolerance threshold value of chloride ions in the fresh and hardened concrete mixes. The more chloride ion found in the concrete mix the higher potential of steel corrosion occurance in the concrete. This research program conducts a series tests on specimens made of course and fine aggregates gathered from two recycle plants at random occasion. The chloride ion content is measured and analyzed according to the Chinese National Standard (CNS14703) methods. A great deal numbers of specimens were prepared during the research period to ensure the reliability of the test and the feasibility of promoting the reuse of recycled construction waste in the new concrete construction. The research results conclude a positive outcome. It is anticipated to publicize the utilization of construction waste as a prudent method to support sustainable development.