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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Rafiq, Muhammad Imran
University of Brighton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021Impact of climate change on the carbonation in concrete due to Carbon Dioxide ingresscitations
- 2020Combined impact of carbonation and crack width on the Chloride Penetration and Corrosion Resistance of Concrete Structurescitations
- 2019Effect of cracks on alkalinity level of concrete structures exposed to carbon dioxide environment condition
- 2019Influence of Carbonation on the Resistance of Concrete Structures to Chloride Penetration and Corrosioncitations
- 2018Influence of cracks on the carbonation resistance of concrete structures
- 2017The effect of rice husk ash properties on the strength and durability of concrete at high replacement ratio
- 2017Experimental investigation of the effects of aggregate size distribution on the fracture behaviour of high strength concretecitations
- 2013Stochastic modeling of chloride-induced pitting corrosion of reinforcement bars in concrete
- 2013Spatial characterisation of chloride-induced corrosion of bars in concrete
- 2013Stochastic modelling of chloride-induced pitting corrosion of reinforcement bars in concrete.
- 2012Physical characterization of reinforcing bar corrosion in concrete
Places of action
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conferencepaper
The effect of rice husk ash properties on the strength and durability of concrete at high replacement ratio
Abstract
The objective of the study is to investigate the mechanical properties of Rice Husk Ash with different replacement levels on the strength and durability of concrete. Three types of rice husk ash (A, B and C) with differences in chemical composition and physical properties were used. Ordinary Portland Cement (OPC) type 52.5 N was replaced with 5%, 10%, 15%, 20%, 30%, 40% and 50% RHA (by weight) keeping the ratio of the water/cementitious material at a constant value of 0.50. Superplasticizer was used to maintain the workability of the fresh concrete within acceptable values. The compressive strength was measured after 7, 28 and 90 days, while splitting tensile strength was obtained at age of 28 and 90 days. Migration coefficient of chloride ion penetration was evaluated using non-steady-state migration tests [1] at 28 days age. The results revealed that the RHA properties (silica form, fineness, silica percentage and loss on ignition) have a direct impact on the development of strength at long-term age [2]. Experiments showed that even with 50% replacement of OPC with RHA, concrete has a higher strength and durability performance compare to OPC concrete. According to the results, increasing replacement ratios leads to decreasing porosity and in turn increasing strength and durability of concrete.