Fly Ash Cement

Fly ash, a highly refined powder with spherical particles of less than 50 microns in size, is a frequently utilized pozzolan in the construction industry. Characterized by siliceous or siliceous/alumina materials, fly ash efficiently forms durable cementitious compounds when integrated with water and lime (calcium hydroxide, or Ca(OH)2).

Product claims are based on proper use in accordance with recognized industry standards. Please contact your Lafarge Cement representative for specific product information, availability, and ordering.


Fly Ash: Geotechnical Applications

Self-cementing fly ash stands as a hydraulic cementitious material, boasting pozzolanic attributes and a substantial calcium oxide content. This unique composition enables it to solidify and strengthen through a chemical interaction with water, mirroring the hydration process of Portland cement. 

Cement Benefits
  • Improved water demand
  • Improved ASR mitigation
  • Improved sulfate resistance
  • Reduce permeability
  • Decreased GWP over Portland cement alternatives
  • Contributes to more sustainable construction
Concrete Benefits

When Portland or Portland limestone cement is mixed with water, most of the cement forms insoluble calcium-silicate-hydrate (C-S-H) gel and calcium hydroxide (Ca(OH)2). When introduced into concrete, fly ash reacts with the Ca(OH)2 to form additional C-S-H gel. In a properly proportioned mix, fly ash can improve many of the properties of concrete, including:

  • Workability and consolidation
  • Flexural and compressive strengths
  • Pumpability
  • Resistance to ASR and sulphate attack
  • Project economics

Furthermore, fly ash cement provides a significant contribution to sustainable construction.

  • Mitigation of shrink/swell properties in expansive clay soils
  • Hot mix asphalt (HMA) pavement recycling
  • Structural fill
  • Stabilization of aggregate bases
  • Soil stabilization
  • Soil drying

Product claims are based on proper use in accordance with recognized industry standards.

Product Availability

  • British Columbia
  • Alberta
  • Manitoba
  • Saskatchewan
  • Ontario
  • Quebec
  • Nova Scotia