Pozzolanic materials have applications in strengthening cement and concrete materials. All pozzolanic materials react with calcium hydroxide to form the cementitious compound calcium silicate hydrate. They are also useful in reducing the effects of the alkali-silica reaction (ASR) in cementitious composites, reacting with hydroxyl ions and portlandite to produce new phases that trap alkali ions.
Using a pozzolan for your project will reduce your Portland cement requirement, supporting carbon emission reductions and helping the transition to a green economy. UNACEM North America is proud to supply natural Pozzolan as part of our commitment to providing socially responsible construction materials.
Growing Together to Build a Sustainable World
There are several classes of pozzolanic materials. Residual fly ash from coal-burning plants constitutes Class F and Class C pozzolans. While it is beneficial to use this byproduct of energy production, coal plants are a source of air pollution and are associated with other environmental issues.
At Drake Cement, we are a supplier of Class N Pozzolan, a material derived from natural deposits of volcanic ash. Millions of years ago, the landscape of Arizona contained many active volcanoes. Powerful eruptions left deposits of volcanic ash, pumice, and obsidian. We grind these materials into a fine, uniform powder that is ideal for use in cement and concrete, meeting all the chemical and physical requirements for ASTM C-618.
For environmental information, download our Pozzolan Environmental Product Declaration.
Natural pozzolanic ash is a powerful resource for enhancing the performance of cement and concrete. Working with volcanic fly ash improves the quality and strength of the final product by addressing several issues caused by unabsorbed calcium hydroxide.
Sustainable companies recognize their social responsibility, act accordingly, and as a result garner support for the ultimate benefits they provide. At UNACEM North America, we acknowledge our impact on the world around us and recognize that our ability to operate successfully is inherently connected to our performance as a responsible corporate citizen.
As a natural resource company, we must measure our performance by more than the traditional bottom line. We judge success by the triple bottom line of economic, environmental, and social performance.
UNACEM North America believes deeply in being active, visible, and generous supporters of the communities in which we live and work.
UNACEM North America supplies high-quality pozzolan materials that improve concrete durability and long-term performance. Our team works with customers to provide reliable material supply across the Southwest. Contact UNACEM North America to learn more about pozzolan availability, specifications, and how it can support your concrete applications.
