Life Cycle Assessment (LCA) of Different Kinds of Concrete Containing Waste for Sustainable Construction

Colangelo, Francesco; Forcina, Antonio; Farina, Ilenia; Petrillo, Antonella

doi:10.3390/buildings8050070

Cited by 162 publications

(56 citation statements)

References 60 publications

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“…LCA methodology is often used for the environmental assessment and comparison of aggregate (natural and recycled aggregate) and concrete (ordinary concrete and recycled aggregate concrete). Many comparative studies using this methodology have been published [4,8,13,16,20,23,24,60,[73][74][75][76][77][78][79][80][81][82][83][84][85][86].…”

Section: Environmental Assessment Methodologymentioning

confidence: 99%

Environmental Assessment of Two Use Cycles of Recycled Aggregate Concrete

Pavlů¹,

Kočí

Hájek³

2019

Sustainability

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The main goal of this study was to compare two use cycles of natural aggregate concrete and recycled aggregate concrete, which is another way to compare the environmental impacts of recycled materials. A series of concrete mixtures with various replacement ratios of primary resources with recycled ones were prepared for this study. The mechanical properties of concrete mixtures were examined and were used for the design of structural elements in the same utilized properties. The two use cycles of a structural element were compared using life cycle assessment (LCA). In the first use cycle, the LCA of the structural element containing only primary raw materials was assessed. In the second use cycle, the LCA of a structural element in which primary materials were partially replaced by recycled ones was assessed. The obtained results confirm the potential use of high-quality recycled aggregate originating from local sources in some applications in building structures. Furthermore, the environmental assessment indicates the benefits of using recycled materials, such as environmental savings, especially the reduction of primary resource use, embodied energy, and embodied emissions, as well as reduction of the pressure on landfill sites.

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Section: Environmental Assessment Methodologymentioning

confidence: 99%

Environmental Assessment of Two Use Cycles of Recycled Aggregate Concrete

Pavlů¹,

Kočí

Hájek³

2019

Sustainability

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“…While the tenants of public rental housing estates represent almost 28% of Hong Kong population, their behavior might have a substantial impact on energy use, especially when the building services equipment is controlled manually. Reducing material use as well as specifying the use of localized materials, recycled materials, and/or alternative low carbon material are the options available for implementation during the design stage for reducing the embodied carbon of buildings [79][80][81][82][83][84][85][86].…”

Section: Discussionmentioning

confidence: 99%

Comprehensive Evaluation of Carbon Emissions for the Development of High-Rise Residential Building

Yim¹,

Hossain

et al. 2018

Buildings

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Despite the fact that many novel initiatives have been put forward to reduce the carbon emissions of buildings, there is still a lack of comprehensive investigation in analyzing a buildings’ life cycle greenhouse gas (GHG) emissions, especially in high-density cities. In addition, no studies have made attempt to evaluate GHG emissions by considering the whole life cycle of buildings in Hong Kong. Knowledge of localized emission at different stages is critical, as the emission varies greatly in different regions. Without a reliable emission level of buildings, it is difficult to determine which aspects can reduce the life cycle GHG emissions. Therefore, this study aims to evaluate the life cycle GHG emissions of buildings by considering “cradle-to-grave” system boundary, with a case-specific high-rise residential housing block as a representative public housing development in Hong Kong. The results demonstrated that the life cycle GHG emission of the case residential building was 4980 kg CO2e/m2. The analysis showed that the majority (over 86%) of the emission resulted from the use phase of the building including renovation. The results and analysis presented in this study can help the relevant parties in designing low carbon and sustainable residential development in the future.

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“…us, researchers around the world aim to develop the recycling technology of C&D wastes to reduce the amount of C&D wastes, and meanwhile, the recycled materials can be further used as the building materials in the new construction projects [6,7]. At the present stage, the C&D wastes are frequently used to produce the recycled aggregates (RA), which include the recycled fine aggregate (RFA) and recycled coarse aggregate (RCA).…”

Section: Introductionmentioning

confidence: 99%

Durability Studies on the Recycled Aggregate Concrete in China over the Past Decade: A Review

Yang

et al. 2019

Advances in Civil Engineering

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Since China hosted the Olympic Games in 2008, a mass of construction and demolition (C&D) wastes were produced with the rapid urbanization construction. Recycling the C&D waste into recycled aggregates (RA) is an effective method for reducing the amount of C&D wastes. Many studies on the properties of RA and the durability of recycled aggregate concrete (RAC) were conducted in China over the past decade. Due to the restrictions of various languages, some valuable studies on the durability of RAC are hard to be acquired by the scholars around the world. erefore, this paper is developed to review the studies on the durability of RAC in China, and the shrinkage behavior, chloride permeability, carbonation behavior, and freeze-thaw resistance of RAC are, respectively, introduced. Considering the waste concrete, bricks, and ceramics used in preparing RA are frequently mixed together in China, this study proposes an index of average water absorption rate to quantify the effects of RA types, quality, and replacement percentages on the durability of RAC. Meanwhile, the relationship between the average water absorption rate of RA and the durability parameters of RAC is established. Finally, the improving methods of RAC durability are introduced, and the RA particle shaping and carbonation modification are emphasized.

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Life Cycle Assessment (LCA) of Different Kinds of Concrete Containing Waste for Sustainable Construction

Cited by 162 publications

References 60 publications

Environmental Assessment of Two Use Cycles of Recycled Aggregate Concrete

Environmental Assessment of Two Use Cycles of Recycled Aggregate Concrete

Comprehensive Evaluation of Carbon Emissions for the Development of High-Rise Residential Building

Durability Studies on the Recycled Aggregate Concrete in China over the Past Decade: A Review

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