| 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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Heath, Andrew
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Improving the pozzolanic reactivity of clay, marl and obsidian through mechanochemical or thermal activationcitations
- 2023Insights into the piezoceramic electromechanical impedance response for monitoring cement mortars during water saturation curingcitations
- 2022The impact of mechanochemical activation on the physicochemical properties and pozzolanic reactivity of kaolinite, muscovite and montmorillonitecitations
- 2022Air-entraining admixtures as a protection method for bacterial spores in self-healing cementitious composites:Healing evaluation of early and later-age crackscitations
- 2022Effect of fibre loading on the microstructural, electrical, and mechanical properties of carbon fibre incorporated smart cement-based compositescitations
- 2022Air-entraining admixtures as a protection method for bacterial spores in self-healing cementitious compositescitations
- 2020Compressive Strength of Novel Alkali-Activated Stabilized Earth Materials Incorporating Solid Wastescitations
- 2018Effect of recycled geopolymer concrete aggregate on strength development and consistence of Portland cement concretes
- 2018Concretes incorporating recycled geopolymer aggregate - Implications and properties correlations
- 2018Chemical aspects related to using recycled geopolymers as aggregatescitations
- 2017Alkaliphilic Bacillus species show potential application in concrete crack repair by virtue of rapid spore production and germination then extracellular calcite formationcitations
- 2016Investigation of the Recycling of Geopolymer Cement wastes as Fine Aggregates in Mortar Mixes
- 2016Chemical aspects related to using recycled geopolymers as an aggregate
- 2016Recycling of fly ash-slag Geopolymer binder in mortar mixes
- 2015The environmental credentials of hydraulic lime-pozzolan concretescitations
- 2015Structural and durability properties of hydraulic lime-pozzolan concretescitations
- 2015The environmental credentials of lime-pozzolan concretescitations
- 2014Numerical analysis of triplet shear test on brickwork masonrycitations
- 2013Laboratory scale testing of extruded earth masonry unitscitations
- 2013The potential for using geopolymer concrete in the UKcitations
- 2012The feasibility and potential of modern hydraulic lime concretes
- 2012Drystone retaining walls: ductile engineering structures with tensile strengthcitations
- 2009The compressive strength of modern earth masonry
- 2009The compressive strength of modern earth masonry
- 2009Compressive strength of extruded unfired clay masonry unitscitations
- 2001Quantifying Longitudinal, Corner and Transverse Cracking in Jointed Concrete Pavements
- 2000Top-down cracking of rigid pavements constructed with fast-setting hydraulic cement concrete
Places of action
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document
Concretes incorporating recycled geopolymer aggregate - Implications and properties correlations
Abstract
Despite extensive research of geopolymers, the potential of recycling after the end of service-life has barely been investigated. The present paper is part of a study investigating recycling of fly ash-slag geopolymer concrete as aggregate in Portland cement concrete mixes. Three types of geopolymer concretes with varying Na2O% and Na: Si ratio were recycled. Properties of concretes such as compressive strength and water absorption were tested. After curing for a period of three months, they were crushed to produce coarse recycled aggregate. The recycled aggregates were subjected to examination of physical properties such as density and water absorption.<br/>Concretes with 20% replacement of coarse natural by recycled aggregate were produced. The compressive strength and water absorption were tested at various ages. The results were evaluated against mixes with natural limestone and recycled Portland cement concrete produced in a similar manner. The results revealed that physical characteristics of recycled aggregates, such as sharpness and shape, affected workability and subsequently strength. Aggregate water absorption was taken into account at mix design, while it appeared to be directly related to concrete water absorption.The effect of geopolymer incorporation on strength seemed to be more dependent on the aggregate type and particularly on Na2O% of original concrete.Overall not significant decreases of strength were observed, while 90 days testing revealed a continuous strength development.<br/><br/><br/><br/>