The role of service life in Life Cycle Assessment of concrete structures

Marinković, Snežana; Carević, Vedran; Dragaš, Jelena

doi:10.1016/j.jclepro.2020.125610

Cited by 39 publications

(19 citation statements)

References 67 publications

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“…Such FU based only on the material properties can be used for generic comparisons in order to evaluate the sustainability potential for material substitution. Besides, such comparative LCAs should clearly state that the performance of a specific application of assessed materials is not taken into account 35 …”

Section: Environmental Assessmentmentioning

confidence: 99%

“…At the same time, the same service lives of compared alternatives can be obtained with different cover depths keeping the same structural member's strength. Since the depth of concrete cover is usually equal to several centimeters, this causes small changes of volume in FU and can cause totally different (for the order of magnitude) environmental impacts during service life 35 . The serviceability aspect should also be taken into account, especially when analyzing structural members where long‐term deflections are detrimental in design.…”

Section: Environmental Assessmentmentioning

confidence: 99%

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Sustainability assessment of recycled aggregate concrete structures: A critical view on the current state‐of‐knowledge and practice

Marinković

Josa

Braymand

et al. 2023

Structural Concrete

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The environmental impacts of activities such as raw material extraction, construction of infrastructure, and demolition, place construction as one of the sectors that exert the highest pressures on the environment, society, and economy. Some of the major environmental impacts for which the construction industry is responsible are mineral resource depletion, greenhouse gas emissions, and waste generation. Among the different strategies that exist to decrease such impacts, recycling demolition waste into recycled concrete aggregates has been considered a promising alternative. As such, at present, the literature dealing with the impact assessment of recycled aggregate concrete structures is very extensive. Therefore, the objective of this article is to present a critical view of the state-of-the-art in terms of sustainability assessment of recycled aggregate concrete structures, taking a holistic perspective by considering environmental, social, and economic impacts.

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Section: Environmental Assessmentmentioning

confidence: 99%

Section: Environmental Assessmentmentioning

confidence: 99%

Sustainability assessment of recycled aggregate concrete structures: A critical view on the current state‐of‐knowledge and practice

Marinković

Josa

Braymand

et al. 2023

Structural Concrete

Self Cite

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“…Finally, the structural applications of RAC started to be environmentally analyzed [ 22 , 27 , 28 , 29 ]. From the point of view of the functional comparing of structures by the LCA method, two main principles have been defined [ 30 ]. In Principle I, which is primarily applied, the FU is related to mechanical properties, the volume of the structural element is constant, and the service life of the structural element varies according to the durability of the material [ 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Environmental Impact of Concrete Slab Made of Recycled Aggregate Concrete Based on Limit States of Load-Bearing Capacity and Serviceability—LCA Case Study

Pavlů

Pešta²,

Vlach³

et al. 2023

Materials

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In the case of concrete sustainability, two main ways are generally discussed: (1) the reduction of natural raw materials and (2) the reduction of emissions related to concrete production. Following the second point, there have not yet been reported clear results. This problem is not given enough attention in present publications. This study brings a general view of this issue and a basic comparison with common concrete and traditional reinforcement. This case study deals with the life cycle analysis of a concrete slab made of recycled aggregate concrete with a fine recycled aggregate. The concrete slab was designed according to the limit states of load-bearing capacity and serviceability, which is based on the experimental verification of recycled aggregate concrete properties. Two different reinforcements are compared: (1) ordinary reinforcement by steel bars and (2) glass fibers. Furthermore, scenarios vary due to the slab thickness and reinforcement percentage. The results show the positive environmental impact of replacing natural sand with a fine recycled aggregate. The reduction of climate change potential can be almost 40% in some cases.

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“…The cement industry is one of the leading contributors to the carbon footprint, and the production of Portland cement (PC) accounts for 10–23% of total anthropogenic CO 2 emissions [ 1 , 2 ], resulting from (1) carbonate decomposition and (2) the oxidation of fossil fuels. The minimum theoretical energy required for calcination is estimated to be about 1760 MJ/t clinker, while some modern plants consume around 2800 MJ/t clinker [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Grinding Methods and Water-to-Binder Ratio on the Properties of Cement Mortars Blended with Biomass Ash and Ceramic Powder

et al. 2023

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To combat environmental challenges—such as the depletion of natural resources and a high carbon footprint—and contribute to the effort of achieving zero-waste technology and sustainable development, the use of agricultural and industrial wastes in the cement industry has created a research interest. This study explores the potential of two types of harvest residue ash (HRA) and three types of ceramic waste (CP) as supplementary cementitious materials (SCMs) through: (1) the characterization of raw materials and (2) examining the physical properties and mechanical performance of cement-based mortar samples prepared with 10%, 30% and 50%wt of the selected SCMs ground into powder form as cement replacement. Two main variables were the water-to-binder ratio (w/b) and the effect of different grinding procedures. Experimental results demonstrated that flexural and compressive strengths were not significantly impaired by SCM additions of up to 50%, but higher replacement levels led to an increased permeability and higher capillary water absorption due to the dilution effect. Also, a lower w/b was shown to effectively reduce the porosity of mortar and increase its mechanical properties, allowing for higher shares of SCMs to be utilized. This study verifies the technical feasibility of cob corn ash and ceramic powder application as SCMs in mortar formulations, further promoting the practice of incorporating industrial and agricultural by-products in greener cementitious composites.

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The role of service life in Life Cycle Assessment of concrete structures

Cited by 39 publications

References 67 publications

Sustainability assessment of recycled aggregate concrete structures: A critical view on the current state‐of‐knowledge and practice

Sustainability assessment of recycled aggregate concrete structures: A critical view on the current state‐of‐knowledge and practice

Environmental Impact of Concrete Slab Made of Recycled Aggregate Concrete Based on Limit States of Load-Bearing Capacity and Serviceability—LCA Case Study

Effects of Grinding Methods and Water-to-Binder Ratio on the Properties of Cement Mortars Blended with Biomass Ash and Ceramic Powder

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