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Rapid Set Cement is a Low-Carbon Cement

Globally, concrete is the most widely utilized material, second only to water. It is estimated that 5-8 percent of global carbon emissions are the result of the manufacturing of cement, the key component that binds concrete together. The production of normal portland cement emits roughly 0.9 tons of CO2 per ton of cement produced. The production of Rapid Set cement emits roughly 0.6 tons, 33% less. This reduced carbon footprint is due to:

Less limestone

A key ingredient in cement is limestone, also known as Calcium Carbonate (CaCO3). When this raw material is heated in the production process, it emits CO2 in a process called “calcination". Rapid Set uses much less limestone, therefore emitting far less CO2 upon heating.

Lower processing temperature

Cement raw materials must be heated or “burned” in a kiln to make cement clinker. Rapid Set is burned at a lower temperature and uses less fuel than portland cement, saving fuel and emitting less CO2.

Easier to grind

The cement clinker is ground into a very fine powder, which is the final product: cement. Rapid Set grinds more efficiently, saving electricity and energy, which further reduces CO2 output.

Rapid Set is Durable

Long-term studies have shown that Rapid Set cement concrete outlasts portland cement concrete by a factor of two, reducing the need to replace and repair concrete. This longer lifetime further reduces the carbon footprint of Rapid Set to 66% less than portland cement.

The Home Depot Awards Rapid Set Cement Products the Eco Options Seal of Approval

Eco Options identifies products with less of an environmental impact than comparable standard products. Rapid Set was chosen due to a 32-36% smaller carbon footprint on a pound-by-pound basis than portland cement since producing Rapid Set uses less limestone and fossil fuels. Rapid Set also meets EPP requirements regarding raw materials extraction and processing, packaging materials, product use, and disposal and transportation. Visit The Eco Options Program for more information.

Rapid Set Cement Products Contribute Points to These LEED Performance Areas

Materials and Resources (MR)

  • Recycled content 10% (1 point)
  • Recycled content 20% (1 point)
  • Recycled materials 10% (1 point)
  • Recycled materials 20% (1 point)

Indoor Environmental Quality (EQ)

  • Low-emitting materials, paints and coatings (1 point)

Durable Materials (MR) (Canada)

  • High durability for extended life cycle (1 point)

Heat Island Effect (SS)

  • Solar reflective index greater than 29 (1 point)

For sustainability articles and papers, email info@ctscement.com.