Evaluation of Sewage Sludge Adding Foamed Geopolymer as Rock-falling Impact-energy-absorbed Materials by Newton’s Cradle Apparatus in conjunction with Multi-physical Nondestructive Techniques

• Main Authors: Chiao-An Yu, 游喬安
• Other Authors: Yao-Chung Chen
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/cdz4uw

碩士 === 國立臺灣科技大學 === 營建工程系 === 107 === Due to the natural geographical location, climatic conditions and the earthquake zone, natural disasters continue to occur in Taiwan. Whenever heavy rains and earthquakes occur, they are accompanied by rockfall, causing road closure, and even causing casualties of people, cars and houses and loss of economic damage. These problems need to be solved by social care and sound engineering design and planning. With the rise of environmental protection awareness in recent years, this study uses sewage sludge as the target of solid waste removal. Because Taiwan produces about 3.2 million tons of water sludge every year, such a huge output has become an urgent problem to be solved. With the development of geopolymer technology in the 20th century, raw materials rich in silicon and aluminum have the physical characteristics of energy absorption. Compared with cement, geopolymer technology has many benefits, such as carbon reduction, early strength, sound insulation, shock isolation, fire resistance and high temperature, etc. Combined with foaming structure technology, porous foaming geopolymer materials are produced, which can turn solid waste from sewage sludge into environmentally friendly materials that can be recycled. In addition to the flexible material of source control in civil engineering, the protection method of rockfall terminal is mainly used for the construction of tunnel and rockfall ceiling. In order to study the mechanism of rockfall failure and the energy dissipation system of tunnel engineering, this study refers to the concept of Japanese for three-layer tunnel to make the low energy absorption rate of foaming geopolymer materials reach 71.7%. The Multifunction Newton Cradle developed by the team is combined with contact type (dynamic load meter, accelerometer) and non-contact type (sound pressure meter, optical image) to carry out non-destructive systematic measurement. Another foamed geopolymer material in the future of this study can be combined with 3D printing technology. Through 3D print template after fill in the foamed geopolymer slurry. In 3D printing material anisotropy, conductivity, and can be applied in the advantages of rapid manufacturing for engineering, environmental and economic achieve win-win-win situation.