Multicriteria optimization of natural and recycled aggregate concrete for structural use

Tošić, Nikola; Marinković, Snežana; Dašić, Tina; Stanić, Miloš

doi:10.1016/j.jclepro.2014.10.070

Cited by 197 publications

(114 citation statements)

References 24 publications

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“…In [25], a multi-criteria optimization method was employed to find the best choice of concrete type (between NAC, RAC with 50% and 100% of coarse aggregate replacement) taking into account economic and environmental criteria and found RAC with 50% replacement to be the optimal choice in all criteria ranking scenarios.…”

Section: Technical Contextmentioning

confidence: 99%

“…Both studies [26] and [25] advocate the enforcement of the "polluter pays" principle and find market based instruments such as increases in landfill taxes, subsidies on recycled aggregates and taxes on the use of natural aggregates to be the best option for policy makers in incentivizing the recycling industry. As for the operation of the recycling facility itself, in the case of Portugal it was found that they can be profitable with a return on investment period under 8 years in all cases of a sensitivity analysis [27], [28].…”

Section: Technical Contextmentioning

confidence: 99%

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Sustainability of the concrete industry: Current trends and future outlook

Tošić¹,

Marinković²,

Stojanović³

2017

Tehnika

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Section: Technical Contextmentioning

confidence: 99%

Section: Technical Contextmentioning

confidence: 99%

Sustainability of the concrete industry: Current trends and future outlook

Tošić¹,

Marinković²,

Stojanović³

2017

Tehnika

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“…The two primary performance variables are the grade and density of the concrete. The concrete mix designs were collected from 8 published journal papers and databases [51][52][53][54][55][56][57][58][59]. These mix designs represent some conventional (normal weight) and some advanced methods of concrete admixture [52,54,56,57] that gives lightweight and ultra-lightweight concrete.…”

Section: -1 Materials and MIX Designsmentioning

confidence: 99%

Incorporating environmental evaluation and thermal properties of concrete mix designs

Robati

McCarthy

Kokogiannakis

2016

Construction and Building Materials

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One of the main challenges in sustainable design of buildings is to improve the energy efficiency of the building during its lifetime along with reducing the environmental impact of the design. Recent advances in concrete technology offer lower embodied emission through the application of supplementary cementitious materials and recycled aggregates. There are also improvements to thermal properties with the application of admixtures. However, the relationships between the environmental impact (Cradle to Gate) and thermal performance of concrete mix designs have not been researched adequately. The Green House Gas (GHG) emissions associated with each individual concrete component and its production need to be considered with greater refinement. This study correlates the impacts of selecting a concrete mix design in terms of CO 2 -e with resulting thermal conductivity and density at the design stage of buildings. This paper examines 90 concrete mix designs from published literature to identify their embodied emissions and thermal conductivity in order to discuss the relationship between low embodied carbon dioxide equivalents (CO 2 -e) emission alternatives and thermal conductivity. The embodied CO 2 -e of a variety concrete mix designs were quantified by compiling embodied CO 2 -e coefficient for each individual component in the concrete. The results show the variation in embodied CO2-e and thermal conductivity of concrete mixes. The application of readily available supplementary cementitious material can reduce embodied CO 2 -e (kg CO 2 -e) by up to 16% in comparison with general practice. Furthermore, the thermal conductivity of concrete mix is influenced by changing the density of aggregates and the proportion of cementitious materials. AbstractOne of the main challenges in sustainable design of buildings is to improve the energy efficiency of the building during its lifetime along with reducing the environmental impact of the design. Recent

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“…Despite lower price of these materials (compare to traditional raw materials), final cost can be paradoxically higher due to the transportation [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Micro-Mechanical Performance of Concrete Used as Recycled Raw Material in Cementitious Composite

Hrbek

Koudelková

Prošek

et al. 2017

APP

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Abstract. The reduction of industrial pollution is recently one of main goals over all fields. In civil engineering, re-cycling of structural waste provides wide opportunity contributing this effort. This paper focus on re-use of concrete waste, which after further processing can be used in new constructions as partial supplement to the mixture. To investigate the impact of re-cycled concrete addition, it is necessary to determine mechanical and structural parameters of individual phases in the "raw" material. For this purpose, grid indentation and scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM, EDX) are combined to determine properties of concrete sample.

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Multicriteria optimization of natural and recycled aggregate concrete for structural use

Cited by 197 publications

References 24 publications

Sustainability of the concrete industry: Current trends and future outlook

Sustainability of the concrete industry: Current trends and future outlook

Incorporating environmental evaluation and thermal properties of concrete mix designs

Micro-Mechanical Performance of Concrete Used as Recycled Raw Material in Cementitious Composite

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