This site is in beta — data may be incomplete and features are still being added.

DocumentsPresentationMar 7, 2023Pages 15–24

City of Langford – Low-Carbon Concrete Policy (POL-0167-PLAN)

Original PDF

Presentation on the City's Low-Carbon Concrete Policy including embodied carbon vs compressive strength data, policy limits and implementation considerations.

4.2 Low Carbon Concrete Policy - Craig Appleman, P. Eng. - Herold Engineering, Ken Carrusca, P.Eng. - Cement Assoc. of Canada and Matt Dalkie, P.Eng. - Lafarge Canada Inc

Key facts

  • Policy reference: POL-0167-PLAN
  • Presenter: Craig Appelman, P.Eng.; presented March 6, 2023
  • Contains embodied carbon (kg-CO2eq/m3) vs compressive strength (MPa) charts
  • Policy limits shown for 2023–2025 (progressive reduction targets)

City of Langford – Policy No: POL-0167-PLAN

Low-Carbon Concrete Policy

Presented by:
Craig Appelman, P.Eng.
March 6th, 2023

Diagram indicating "20 MPa 70 MPa" and "Less cementMore Cement"; source: http://www.clean-water-for-laymen.com/making-concrete.html
Diagram indicating "20 MPa 70 MPa" and "Less cementMore Cement"; source: http://www.clean-water-for-laymen.com/making-concrete.html

Concrete constituents (example material breakdown)

  • Cement
  • Fly Ash
  • Gravel
  • Sand
  • Water
  • Admixtures

Contribution to Embodied Carbon (kg-CO2eq/m3),
Example 35 MPa mix, Total embodied carbon = 241 kg

Example 35 MPa Concrete Mix – Proportional Mass of Concrete Constituents (kg/m3)

Diagram/images related to concrete constituents and mix proportions
Diagram/images related to concrete constituents and mix proportions
Page 15–24

Embodied Carbon in Concrete vs. Compressive Strength

  • Axis labels:
    • Embodied Carbon (kg-CO2 eq./ m3)
    • Compressive Strength (MPa)
  • Sources/notations on charts:
    • NRMCA
    • ConcreteBC Entrained Air Mixes

Representative chart captions repeated across slides:

  • Embodied Carbon in Concrete vs. Compressive Strength — ConcreteBC Entrained Air Mixes

Policy Limit lines shown on successive slides:

  • Policy Limit: 2023
  • Policy Limit: 2024
  • Policy Limit: 2025

Other annotations visible on slides:

  • %
  • ?
  • ?
Page 15–24

Questions

  • • Questions
Cover/graphic for "Making Concrete Change: Innovation in Low-carbon Cement and Concrete"
Cover/graphic for "Making Concrete Change: Innovation in Low-carbon Cement and Concrete"

Reference:
https://www.chathamhouse.org/sites/default/files/publications/2018-06-13-making-concrete-change-cement-lehne-preston-final.pdf

Page 15–24
Extracted from: Agenda(327 pages total)