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Author

Dan Bompa

Other affiliations: Imperial College London
Bio: Dan Bompa is an academic researcher from University of Surrey. The author has contributed to research in topics: Compressive strength & Flexural strength. The author has an hindex of 9, co-authored 33 publications receiving 226 citations. Previous affiliations of Dan Bompa include Imperial College London.

Papers
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Journal ArticleDOI
TL;DR: In this article, the authors examined the complete bond-slip behavior between deformed reinforcement bars and concrete incorporating rubber particles from recycled tyres as a partial replacement for mineral aggregates and provided a direct interpretation of bond behaviour under practical levels of confinement and its influence on the failure modes.

45 citations

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TL;DR: In this article, an experimental investigation into the cyclic behavior of reinforced concrete members incorporating a significant proportion of recycled rubber particles as a replacement for mineral aggregates is presented. But the results of the experiments are limited to the case of large-scale members of circular cross-section.

43 citations

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TL;DR: In this article, the authors investigated the creep response and long-term strength properties of unconfined and FRP-confined concrete materials incorporating relatively high proportions of recycled tyre rubber particles.

33 citations

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TL;DR: In this paper, the authors examined the environmental and geochemistry impact of recycled aggregate concrete production with properties representative for structural applications, and showed that the concrete with 50% recycled aggregate presented lower increase, only 0.3% and 3.4% for normal and high strength concrete, respectively.
Abstract: This work examines the environmental and geochemistry impact of recycled aggregate concrete production with properties representative for structural applications. The environmental influence of cement content, aggregate production, transportation, and waste landfilling is analysed by undertaking a life cycle assessment and considering a life cycle inventory largely specific for the region. To obtain a detailed insight into the optimum life cycle parameters, a sensitivity study is carried out in which supplementary cementitious materials, different values of natural-to-recycled aggregate content ratio and case-specific transportation distances were considered. The results show that carbon emissions were between 323 to 332 kgCO2e per cubic metre of cement only natural aggregate concrete. These values can be reduced by up to 17% by replacing 25% of the cement with fly ash. By contrast, carbon emissions can increase when natural coarse aggregates are replaced by recycled aggregates in proportions of 50% and 100%, and transportation is not included in analysis. However, the concrete with 50% recycled aggregate presented lower increase, only 0.3% and 3.4% for normal and high strength concrete, respectively. In some cases, the relative contribution of transportation to the total carbon emissions increased when cement was replaced by fly ash in proportions of 25%, and case-specific transportation distances were considered. In absolute values, the concrete mixes with 100% recycled aggregates and 25% fly ash had lower carbon emissions than concrete with cement and natural aggregates only. Higher environmental benefits can be obtained when the transportation distances of fly ash are relatively short (15–25 km) and the cement replacement by fly ash is equal or higher than 25%, considering that the mechanical properties are adequate for practical application. The observations from this paper showed that recycled aggregate concrete with strength characteristics representative for structural members can have lower carbon emissions than conventional concrete, recommending them as an alternative to achieving global sustainability standards in construction.

30 citations

Journal ArticleDOI
TL;DR: In this paper, an experimental investigation into the inelastic cyclic performance of reinforced concrete members incorporating mechanical reinforcement splices is described, and the results show that members incorporating reinforcement bars connected through threaded mechanical couplers can provide considerable ductility and energy dissipation.

28 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the authors provide a fundamental insight into the integrated applications of rubberized concrete composite materials to improve construction methods, including applications to enhance environmental sustainability of concrete structures in the construction industry.

210 citations

Journal ArticleDOI
TL;DR: In this article, the effect of rubber particle size, percentage replacement and various treatment methods on different mechanical properties of rubber concrete, studied over the last 30 years, was considered and a rubber treatment method that can address the concerns of high flammability and the resultant release of noxious gases from the rubber particles, when exposed to fire.

193 citations

Journal ArticleDOI
TL;DR: In this article, the authors evaluated the performance of high strength concrete where the recycled rubber partially replace the fine aggregate and showed that the rubberized concrete mixes showed good workability and slightly lower density than the control mix.

97 citations

Journal ArticleDOI
TL;DR: In this article, a review paper summarises and compares independent research works and justifies weather these aggregates are possible to utilize improved behavior of concrete elements or not, and the results of these experimental studies are not sufficient to reach a general consensus on the application of recycled rubber in concrete and its effect on the behavior of structural elements.

95 citations