The Performance of Asphalt Concrete Pavement with the Basic Oxygen Furnace Slag

• Main Authors: Hung-Yu Chi, 紀宏諭
• Other Authors: 林炳森
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/kxy2q2

碩士 === 國立中興大學 === 土木工程學系所 === 106 === With the exhaustion of traditional energy sources, countries around the world do not regard "circular economy" and "energy conservation and carbon reduction" as new thinking in governance, and carry out energy layout and development of green energy industry to create a sustainable low-carbon society and develop a low-carbon economy. Taking into account the maintenance of the ecological environment, according to the statistics of the Environmental Protection Agency, 19 electric arc furnace steel producers in China produce up to 1.5 million tons of oxidized slag and reducing slag per year. The annual production of Basic Oxygen Furnace slag by Sinosteel is as high as 1.6 million tons. At present, the slag in the plant area has piled up like a mountain. In order to find a solution, the Public Works Committee has also revised the "Code for the Construction of Public Works". In the future, public works will give priority to the use of slag resources such as Basic Oxygen Furnace slag to understand the problem of slag removal. The performance of Basic Oxygen Furnace slag for public works must be tested in detail. The Basic Oxygen Furnace slag is a steel mill that always works in steelmaking. When molten steel, auxiliary materials and scrap are added to the converter, it is blown with pure oxygen to produce molten steel and hot melt, and the cooled hot melt is called For Basic Oxygen Furnace slag (Basic Oxygen Furnace slag, BOF slag). Basic Oxygen Furnace slag is one of steel slag (steel slag), which has the characteristics of wear resistance, high hardness and high anti-sliding property, and the pellet characteristics are quite suitable for paving engineering. This study uses Basic Oxygen Furnace slag instead of asphalt mixing. Some of the pellets in the soil mixture are mixed and designed, paved in actual paving, such as Lingang East Road, Dongqi Road, Zhongshan Road, and regularly measured flatness, anti-sliding ability and rut to evaluate the application of Basic Oxygen Furnace slag Performance of asphalt concrete pavement. The research shows that the flatness measurement results are only after the completion and six months after the standard deviation (SD) data, Lingang East Road is just completed 1.2, 1.4 after half a year 1.6, 1.8, Dongqi Road is just completed 1.8, 2.0 after half a year, 2.3, 1.8, Zhongshan Road has just completed 1.6 and 2.0 after half a year, 1.9, 1.8. Although the data has been slightly improved but the variation is still small within the normative standards, the performance results are good; the anti-sliding ability test (BPN average) Lingang East Road has just been completed 68, 67, 61 After 71 years, 92, 92, 89, 89, Dongqi Road 73, 70, half year after 85, 85, Zhongshan Road just completed 62, 64, 65, 73 after half a year 77, 77, 79, 82, anti-sliding BPN values Significantly improved speculation and slight wear on the road surface caused by increased friction and increased anti-sliding ability; rutting measurement (full distance mm) results were just completed and half a year later, Lingang East Road was 2.5, 3.6, 4.8, 7.0 and 3.4 respectively. 3.5, 5.1, 7.4, Dongqi Road is 4.7, 5.7 and 9.6, 6.6 respectively, and Zhongshan Road has 7.0, 7.4, 12.4, 10.4 and 13.2, 9.7, 12.4, and 7.4, respectively. In addition, the six-point three-point Basic Oxygen Furnace slag replaces the natural particle size of the same grain design (hereinafter referred to as the three-point coarse sand design) has better resistance to rutting, consistent with the trend of indoor rutting test results.