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

Meeting: Regular Council — March 7, 2023

Canonical HTML: [Open Langford](<https://openlangford.ca/meetings/2023-03-07-regular-council/documents/2510>)

Meeting record updated: 2026-10-19T03:51:32.459123+00:00

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Source: [Agenda](<https://pub-langford.escribemeetings.com/FileStream.ashx?DocumentId=4766>)

Source pages: 15–24

## AI-processed summary

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

## Extracted text

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

Source pages: 15–24

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

### Low-Carbon Concrete Policy
Presented by:  
Craig Appelman, P.Eng.  
March 6th, 2023

[Image 1: 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)

[Image 2: Diagram/images related to concrete constituents and mix proportions]

### Embodied Carbon in Concrete vs. Compressive Strength

Source pages: 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:
- %
- ?
- ?

### Questions

Source pages: 15–24

## Questions

- • Questions

[Image 3: 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