| People | Locations | Statistics |
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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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Lee, Hyuk
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2020Cohesive-strength properties versus porosity of cementitious materialscitations
- 2020Identification of transversely isotropy of calcium silicate hydrate using nanoindentation and finite element analysiscitations
- 2020Cohesive-strength homogenisation model of porous and non-porous materials using linear comparison composites and applicationcitations
- 2019Study of strain-hardening behaviour of fibre-reinforced alkali-activated fly ash cementcitations
- 2019An investigation of nanomechanical properties of Materials using nanoindentation and Artificial Neural Networkcitations
- 2018Creep properties of cement and alkali activated fly ash materials using nanoindentation techniquecitations
- 2016Residual strength of blended cement pastes and mortar exposed to elevated temperatures
- 2016Mechanical and micromechanical properties of alkali activated fly-ash cement based on nano-indentationcitations
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article
Residual strength of blended cement pastes and mortar exposed to elevated temperatures
Abstract
<p>This paper presents the outcome of a series of tests to determine properties of blended cement pastes and mortar mixtures using Taguchi's design of experiment approach. Fly ash (FA), water to cementitious material ratio (w/c), superplasticiser (SP) and sand to cementitious material ratio (s/c) are the main parameters considered. Mixture samples were tested at varying temperatures up to 800<sup>o</sup>C. The ANOVA results and regression analysis show that an increase in FA content and w/c ratio lead to a decrease in the density of blended cement. For compressive strength development, an increase in FA content and s/c ratio decreased the compressive strength development. Within the tested levels of the parameters, the optimum mix to achieve the highest compressive strength of blended cement mixtures is 20% of FA content, 1.5 of s/c ratio, 0.35 of w/c ratio and 0.2% of SP. Increasing the content of FA and SP improved the overall residual strength, and the optimum mix design to achieve the highest residual strength is 20% of FA, 1.5 of s/c ratio, 0.35 of w/c ratio and 0.2 of SP. Based on all the test results, an empirical formula for predicting residual strength of blended cement paste and mortar is proposed.</p>