Performance of Gear Inner Wire-Reinforced Reactive Powder Concrete made with Unrefined Metakaolin
Performance of Gear Inner Wire-Reinforced Reactive Powder Concrete made with Unrefined Metakaolin
| dc.contributor.author | IBRAHIM, A.G. GARBA, M.M. OKOLI, O.G. ZUBAIRU, I.K. DAHIRU, D. USMAN, J. | |
| dc.date.accessioned | 2024-09-03T14:51:45Z | |
| dc.date.available | 2024-09-03T14:51:45Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | Reactive Powder Concrete (RPC) is a new generation of concrete that is coarse aggregate-free cement-based material. RPC is characterized by highly dense matrix, ultra-high strength, excellent durability and economy. The wide application of RPC in special structures across the globe such nuclear power station, etc is becoming a concern due to lack of extensive study on the properties of RPC exposed to elevated temperatures. The research evaluated the effect of unrefined Metakaolin (MK) as substitute to silica fume and Gear Inner Wire (GIW) as fibre on the performance of RPC exposed to elevated temperatures (200°C-800°C). On the other hand, a reference sample produced with 20% silica fume was also tested. RPC specimens produced with 10%, 20% and 30% MK by weight of cement and a constant GIW content of 0.25% by weight of concrete were subjected compressive and absorption properties. Thermal deterioration of the RPC using Ultrasonic Pulse Velocity (UPV) was also assessed. Results show that RPC with 10%MK and 0.25% GIW has better performance in terms of residual strength, water absorption and UPV up to 800°C compared to the control sample with silica fume. To enhance the residual properties of this type of RPC, 10% unrefined MK and 0.25%GIW is required. Therefore, RPC of this type can be used in structures exposed to elevated temperature. | |
| dc.identifier.citation | Department of Building, Ahmadu Bello University, Zaria aigetso(q)abu.edu.nR | |
| dc.identifier.uri | https://kubanni.abu.edu.ng/handle/123456789/12996 | |
| dc.language.iso | en | |
| dc.title | Performance of Gear Inner Wire-Reinforced Reactive Powder Concrete made with Unrefined Metakaolin | |
| dc.type | Preprint |
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