ACS Materials
Class F Fly Ash

Compressive Strength Testing

Our unique blend allows an ideal reaction between our RFA and the excess calcium hydroxide element in concrete pore solutions. This reaction has proven to show strengths that are higher than OPC-only concretes at 28 days and similar to OPC-only concretes at 7 days. It has it also proven to be stronger than standard Class C Ash and competitor’s Class F Ash.

Reduced Permeability, Efflorescence and Chloride Attack

When Portland cement is hydrated, there is a leaching of calcium hydroxide that affects the internal porosity and contributes to efflorescence. Our product mitigates this affect due to a reaction with the calcium hydroxide to form calcium silicate hydrate. Due to this, our product creates a more dense concrete matrix that resists chloride containing liquids and other chemicals.

ASR Mitigation

Our product has a higher surface area than our competitor’s Class F Ashes, therefore creating a highly reactive pozzolan. The interaction between our RFA and calcium hydroxide creates a more dense cement paste that removes the calcium hydroxide and creates a binder.

Superior Results, Solid Solution

By using our Class F fly ash, you are guaranteed to achieve a better quality concrete all while solving the environmental impact of traditional Class C fly ash, including ongoing shortages. Our product has maintained consistent, measurable test results in all categories related to ASTM and AASHTO, including ASTM C618, ASTM C1012, ASTM C1260/C1567 and AASHTO M295. Further, our product reduces the heat of hydration, minimizes water demand variability, ensures consistent air void matrix and is overall more environmentally conscious by reducing the landfilled fly ash from coal combustion.

ACS Materials

Changing Concrete
One Cubic Yard at a Time