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Structural Engineering and Mechanics Volume 63, Number 2, July25 2017 , pages 217-223 DOI: https://doi.org/10.12989/sem.2017.63.2.217 |
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Formulation of an alternate concrete mix for concrete filled GFRG panels |
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Nithya Nandan and R. Renjith
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| Abstract | ||
| Glass fiber reinforced gypsum panels (GFRG) are hollow panels made from modified gypsum plaster and reinforced with chopped glass fibers. The hollow cores of panels can be filled with in-situ concrete/reinforced concrete or insulation material to increase the structural strength or the thermal insulation, respectively. GFRG panels are unfilled when used as partition walls. As load bearing walls, the panels are filled with M 20 grade concrete (reinforced concrete filling) in order to resist the gravity and lateral loads. The study was conducted in two stages: First stage involves formulation of the alternate light weight mix by conducting experimental investigations to obtain the optimum combination of phosphogypsum and shredded thermocol. In the second stage the alternate mixes are filled in GFRG panels and experimental investigations are conducted to compare the performance against panels filled with conventional M 20 mix. | ||
| Key Words | ||
| hollow panels; phosphogypsum; shredded thermocol; light weight; low cost | ||
| Address | ||
| Nithya Nandan and R. Renjith : Department of Civil Engineering, Sree Buddha College of Engineering, Alappuzha, Kerala, India | ||