A Study on the Quality Control of Concrete during the Slip Form Erection of Pylon


The construction market of super-high-rise buildings and long-span bridges has recognized unprecedented expansion owing to the development of high performance and high strength materials and the advances achieved in the design and construction technologies. In parallel to the lengthening and enlargement in scale of the structures, securing quality control technology of concrete while reducing the construction duration using improved construction methods emerges as a critical problem for concrete structures. In the erection of concrete pylons, slip forming represents the latest method offering the advantage of reducing drastically the construction duration compared to other methods by adopting automated slip-up of the forms and enabling 24-hour continuous placing. This study determines the slip-up time of the slip form by evaluating the early strength through the surface wave velocity and develops lightweight GFRP form in order to secure the quality of concrete during the slip form erection of pylons. A slip form system is fabricated and mockup test is conducted to verify the performances of the developed techniques through the construction of 10 m-high pylon with a hollow section.

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H. Yoon, W. Chin, H. Kim and Y. Kim, "A Study on the Quality Control of Concrete during the Slip Form Erection of Pylon," Engineering, Vol. 5 No. 8, 2013, pp. 647-655. doi: 10.4236/eng.2013.58078.

Conflicts of Interest

The authors declare no conflicts of interest.


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