• 제목/요약/키워드: Earth Sciences

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Antibacterial Compounds from Korean Marine Sponges

  • Nam, Sang-Jip;Kim, Hee-Young;Kim, Young-Shin;Choi, Hyuk-Jae;Kim, Soo-Whan;Oh, Ki-Bong;Rhee, Joon-Haeng;Kang, Heon-Joong
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2003년도 생물공학의 동향(XIII)
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    • pp.67-67
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    • 2003

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Feasibility study on corrosion monitoring of a concrete column with central rebar using BOTDR

  • Sun, Yijie;Shi, Bin;Chen, Shen-En;Zhu, Honghu;Zhang, Dan;Lu, Yi
    • Smart Structures and Systems
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    • 제13권1호
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    • pp.41-53
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    • 2014

  • Optical fiber Brillouin sensor in a coil winding setup is proposed in this paper to measure the expansion deformation of a concrete column with a central rebar subjected to accelerated corrosion. The optical sensor monitored the whole dynamic corrosion process from initial deformation to final cracking. Experimental results show that Brillouin Optical Time Domain Reflectometer (BOTDR) can accurately measure the strain values and identify the crack locations of the simulated reinforced concrete (RC) column. A theoretical model is used to calculate the RC corrosion expansive pressure and crack length. The results indicate that the measured strain and cracking history revealed the development of the steel bar corrosion inside the simulated RC column.

  • https://doi.org/10.12989/sss.2014.13.1.041 인용 KSCI