Development of Green Ball based lightweight biaxial concrete SLAB [GB-SLAB]
Author(s): |
Seung-Chang Lee
Jung-Keun Oh Chang-Sik Choi Dae-Jin Hwang Keung-Hwan Kim |
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Medium: | conference paper |
Language(s): | English |
Conference: | 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011 |
Published in: | IABSE-IASS 2011 London Symposium Report |
Year: | 2011 |
Abstract: |
The purpose of this paper is to develop advanced lightweight structure called GB-SLAB (Green Ball based lightweight biaxial SLAB) which is a kind of two-way hollow core slab system. The advanced slab system was patented and awarded by Korean government in the year of 2010. Green Ball (like plastic ball) is inserted between the top and bottom reinforcement before pouring the concrete. Green ball makes the cavities in the concrete and these holes can reduce the weight of slab. The reduction of slab’s weight makes lighter structure and reduces the earthquake load. The reduction of load can minimize or reduce the size and materials of column and foundation. Based on the analytical and experimental results, the paper explains why GB-SLAB is lighter but stronger and additionally more cost-effective and easier to install rather than traditional two-way hollow core slabs. |
Keywords: |
hollow core slab lightweight structural performance eco-friendly Cost-effective green ball biaxial slab
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