Life cycle CO2 evaluation on reinforced concrete structures with high-strength concrete

Tae, Sungho; Baek, Cheonghoon; Shin, Sang Jin

doi:10.1016/j.eiar.2010.07.002

Cited by 119 publications

(63 citation statements)

References 16 publications

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“…Tae et al [18] evaluated the environmental performance of high-strength concrete used in highrise buildings as a material of environmental load reduction. Yepes et al [19] described a methodology to optimize cost and CO2 emission when designing precast concrete road bridges with a double U-shape cross-section.…”

Section: Methodology Of Co 2 Life Cycle Assessment For Concretementioning

confidence: 99%

Analysis of CO2 Emission Characteristics of Concrete Used at Construction Sites

Kim

Chae

Kim³

et al. 2016

Sustainability

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Abstract:As the greenhouse gas reduction goal of 37% below business-as-usual (BAU) by 2030, the construction industry is recognized as an anti-environment industry for mass consumption/mass waste; thus, members of the industry are requested to make efforts to transform it into an environment-friendly industry. Concrete, a common construction material, is known to emit large amounts of environmentally hazardous waste during the processes related to its production, construction, maintenance, and demolition. The amount of greenhouse gas (GHG) emissions by the product is specified in a ready-mixed concrete report whenever concrete is sold commercially. Hence, there have been many studies addressing the quantitative evaluation and reduction of the environmental effects of concrete. This study aims to introduce a method for assessing the amount of carbon dioxide emission from the processes of producing concrete. Moreover, we measured the quantities of CO 2 emission of about 10 under-construction projects, including office buildings, apartment buildings, and high-rise residential buildings in South Korea. Using the assessment result, we analyzed the CO 2 reduction performance of an office building in South Korea and drew conclusions about measures for reducing CO 2 emission.

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Section: Methodology Of Co 2 Life Cycle Assessment For Concretementioning

confidence: 99%

Analysis of CO2 Emission Characteristics of Concrete Used at Construction Sites

Kim

Chae

Kim³

et al. 2016

Sustainability

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“…Third, the effect of CO 2 reduction was assessed by the application of high-strength concrete on the alternative cases only. This was performed by measuring the reduction in the quantity of materials used for construction and the life cycle extension of the structural system due to the use of high-strength concrete [30]. Fourth, CO 2 emissions during the operation stage were assessed by measuring energy consumption of each case using EcoDesigner, a building energy simulation software compatible with BIM (Graphisoft, Budapest, Hungary).…”

Section: Theory Of the Building Lca Assessment Methodsmentioning

confidence: 99%

Life Cycle CO2 Assessment by Block Type Changes of Apartment Housing

et al. 2016

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Abstract:The block type and structural systems in buildings affect the amount of building materials required as well as the CO 2 emissions that occur throughout the building life cycle (LCCO 2 ). The purpose of this study was to assess the life cycle CO 2 emissions when an apartment housing with 'flat-type' blocks (the reference case) was replaced with more sustainable 'T-type' blocks with fewer CO 2 emissions (the alternative case) maintaining the same total floor area. The quantity of building materials used and building energy simulations were analyzed for each block type using building information modeling techniques, and improvements in LCCO 2 emission were calculated by considering high-strength concrete alternatives. By changing the bearing wall system of the 'flat-type' block to the 'column and beam' system of the 'T-type' block, LCCO 2 emissions of the alternative case were 4299 kg-CO 2 /m 2 , of which 26% was at the construction stage, 73% was as the operational stage and 1% was at the dismantling and disposal stage. These total LCCO 2 emissions were 30% less than the reference case.

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“…Global issues such as climate change, the depletion of the earth's resources and pollution are causing many countries to commit to reducing their environmental impact specifically their CO 2 emissions [14]. The production of Portland cement is an energy intensive process [15] and approximately 0.7 -1.1 tonnes of CO 2 are emitted for every tonne of cement produced [16].…”

Section: Introductionmentioning

confidence: 99%

Resistance of geopolymer and Portland cement based systems to silage effluent attack

Aiken

Sha

Kwasny

et al. 2017

Cement and Concrete Research

109

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Abstract:Traditional Portland cement (PC) concrete has been used for many years in the agricultural industry for the construction of silos and silage effluent storage facilities. However, the acidic nature of the silage effluent produced by silage has led to severe degradation of PC concrete which in turn has significant environmental and financial implications. This study compares the resistance of PC and geopolymer (GP) mortars and pastes to silage effluent over 12 months. The GP samples displayed increased resistance to silage effluent in terms of mass and strength loss. Analysis of microstructure suggests that the increased stability of the reaction products is the main factor behind increased silage effluent resistance when compared with PC. It was also found that pulverised fuel ash (PFA) and ground granulated blast furnace slag (GGBS) blends with a higher PFA content may offer increased long term silage effluent resistance due to the nature of the main binder gel produced in PFA dominant systems.

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Life cycle CO2 evaluation on reinforced concrete structures with high-strength concrete

Cited by 119 publications

References 16 publications

Analysis of CO2 Emission Characteristics of Concrete Used at Construction Sites

Analysis of CO2 Emission Characteristics of Concrete Used at Construction Sites

Life Cycle CO2 Assessment by Block Type Changes of Apartment Housing

Resistance of geopolymer and Portland cement based systems to silage effluent attack

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