Embodied carbon (EC) contributes a significant portion of the life cycle carbon footprint of the built environment. According to WWF, the construction sector is the second largest contributor of the carbon footprint in Hong Kong and 85% of the carbon footprint associated with the construction sector is embodied in imported goods and services. This study investigates the embodied carbon of locally used construction materials and develops the Embodied Carbon Of Construction Materials (ECO-CM) database for Hong Kong.

 

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LCA Based Carbon Inventory

The LCA based carbon inventory is still under development. We are at the data collection stage for some of the selected materials and your inputs are welcome. All the collected data are kept in strictly confidential. The LCA based results will be shown below in the near future.

The methodology was presented by Dr Jack Cheng in the HKIE Environmental Division Annual Seminar 2013, which was held on 22 March 2013 in Hong Kong. The slides of the presentation are available HERE.

 

  Cradle-to-Gate Gate-to-Gate Cradle-to-Site
CO2 (kg CO2 /kg) CO2-e (kg CO2-e /kg) CO2 (kg CO2 /kg) CO2-e (kg CO2-e /kg) CO2 (kg CO2 /kg) CO2-e (kg CO2-e /kg)
Cement General            
Fibre Cement            
Mortar (1:3 cement : sand mix)            
Mortar (1:4)            
Mortar (1:6)            
Concrete            
Steel            
Aggregate            
Wood            
Plastics            
Aluminium            
Clay            
Brick            
Glass            

 

Updated on Mar 18, 2013  

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