Study of the Stone Matrix Cement Asphalt Concrete Pavement with the Precoated Basic Oxygen Furnace Slag

• Main Authors: Shu-chia Chang, 張書嘉
• Other Authors: Der-hsien Shen
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/47154055168686388539

碩士 === 國立臺灣科技大學 === 營建工程系 === 101 === The study used Basic Oxygen Furnace Slag wrapped with blast furnace slag grout, referred as SPB. In addition to the physical properties of SPB, the effects of SPB applied on the pavement made of Stone Matrix Cement Asphalt concrete were also explored. In the first stage of this study, the different physical properties between Basic Oxygen Furnace Slag (B) and SPB were explored. The ratio of Cement Asphalt Paste, CAP, and its physical properties were explored the second stage. The third stage took SPB, which replaced parts of natural coarse granular materials, to be hot mixed with modified asphalt III, MA3, becoming Stone Matrix Asphalt (SMA), as control group and to be cold mixed with Cement Asphalt Paste, CAP, becoming Stone Matrix Cement Asphalt Concrete, SMCAC, as the experimental group. SMA and SMCAC were compared with tests in terms of mechanical properties, pavement performance, durability properties, and acoustic characteristics to evaluate the effects of SPB applied on SMCAC. The study results showed that SPB has the function to fill the pores on the surface of Basic Oxygen Furnace Slag for that it attaches with a layer of blast furnace slag grout, which can reduce the swelling and improve various physical properties of Basic Oxygen Furnace Slag. In terms of Cement Asphalt Paste, according to the results of considering both new mixed properties of CAP and mechanical properties, the best ratio of CAP is C/A = 1.2 (cement/asphalt) and FSP/A = 4% (surfactant/asphalt). In terms of SPB applied on SMCAC, from the combining evaluations by test results for mechanical properties, pavement performance, durability properties, and acoustic characteristics, we learned that the higher SPB substitution of natural coarse granular materials, the better quality of SMCAC obtains. On the whole, the SMCAC containing SPB has excellent effects and can achieve the purpose of energy saving and waste reduction.