The Carbon Footprint of Bridges

Collings, David

doi:10.1080/10168664.2021.1917326

Cited by 28 publications

(11 citation statements)

References 5 publications

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“…These key statistics and trends generally match similar results documented in a recent study titled 'The Carbon Footprint of Bridges' 12 . This study also focuses on A1-A5 modules, drawing upon carbon data from 200 diff erent bridge structures, and documents an average carbon intensity of 2420kgCO 2 e/m 2 .…”

Section: Benchmarking Scorbssupporting

confidence: 85%

Carbon targets for bridges: a proposed SCORS-style rating scheme

Archer-Jones¹,

Green²

2021

STRUCT ENG

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Section: Benchmarking Scorbssupporting

confidence: 85%

Carbon targets for bridges: a proposed SCORS-style rating scheme

Archer-Jones¹,

Green²

2021

STRUCT ENG

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“…Collings in 2021 35 confirmed that there was a linear correlation between increased cost and higher carbon emission of bridges. Considering the linear correlation presented by Collings, 35 it is predicted that the whole life carbon emission of a conventional PC girder bridge may increase up to 2.5 times of that of module A, manifesting significant contribution from module B and C (B + C = 1.5 Â A) due to repair, refurbishment, replacement, demolition, disposal, etc. as estimated in Table 5.…”

Section: Prediction Of Whole Life Carbon Emissionmentioning

confidence: 85%

Life cycle assessment of next generation non‐metallic bridges

Zerin

Kasuga

2023

Structural Concrete

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Employments of highly durable low carbon technologies are crucial for mitigation of climate change ensuring sustainable infrastructures. In this perspective, a challenging initiative for ultra-high durability low carbon prestressed concrete bridges utilizing sustainable zero cement concrete (STC-ZERO) and nonmetallic reinforcement is undertaken. STC-ZERO exhibiting high strength, low shrinkage, and low creep reduces carbon emission up to 70% compared to the conventional concrete as cement is entirely replaced. Aramid fiber PC tendons have no factor of deterioration of concrete thanks to nonexistence of corrosion. Accordingly, an AASTHO-PCI BT-72 PC girder bridge and a butterfly web bridge are designed incorporating this combination and compared with corresponding conventional bridges with respect to whole life carbon emissions. Since there are no repair and rehabilitation requirements, the whole life carbon emissions of next generation non-metallic bridges are expected to be reduced by around 70%.

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“…An interesting database is presented here, Figure 7 shows the relationship between CO 2 emissions and construction costs for bridge construction in the United Kingdom. 12 There is a slight difference between road, rail and pedestrian bridges with different loads, but they show a good correlation, and the gradient is roughly 400 tCO 2 /million €. Although there are commodity price and exchange rate effects, what is very interesting is that the values of A1 to A3 divided by the company's annual sales mentioned earlier and the value divided by the cost of the project in Figure 7 are almost the same.…”

Section: Co 2 Emissions Of Structural Concretementioning

confidence: 97%