Use of Rapid Detection Technology to Probe into Volume Stability of Behavior with Recycled Materials Mortar

• Main Authors: Ye-Wei Han, 韓頁韋
• Other Authors: Wen-Ten Kuo
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/90372689366554086658

碩士 === 國立高雄應用科技大學 === 土木工程與防災科技研究所 === 101 === Recently, domestic actively promote public construction, resulting over-exploitation of natural resources, further make Industrial Waste Recycled Material (IWRM) become the focus of numerous studies, but has not yet been stabilized of the IWRM, will result in poor volume stability. In this study, high-temperature catalytic technology used to accelerate the hydration of steel slag reaction, in short time to quickly predict the behavior of the IWRM mortar volume expansion, to avoid the use of materials without a stabilization in engineering. The IWRM were Electric arc Furnace Oxidizing Slag (EOS), Electric arc Furnace Reductive Slag (ERS) and Circulating Fluidized Bed Boiler (CFB). Each of 10%, 20%, 30%, 40% and 50% by weight replaced cement and sand, begin the Autoclave Expansion, Heating Catalysis (80, 100 ℃), Microwave Catalysis, and accompanied by Compressive Strength, X-Ray Diffraction and Scanning Electron Microscope verify the effect of the catalytic test. The results showed that when the EOS replace the sand with the risk of expansion, particularly more than 20%. The expansion of the normal mixed destruction alert value of about 0.11% ~ 0.12%; CLSM is 0.10% ~ 0.11 %. IWRM expansion reactions associated with the temperature and catalytic time, and that is proportional. Ruptured specimens using SEM shoot images, In high-temperature catalyst, generates Ca(OH)2, and its around the hydration products caused extrusion, f-CaO hydration will generate Ca(OH)2, which is the main reason for the expansion ruptured.