GeoStrong Concrete Repair Mortar

GeoStrong™ Repair Mortar is a one-component, non-shrink, fast-setting geopolymer mortar designed for repairing horizontal, vertical and overhead concrete surfaces where high strength is desired.


• High early and ultimate strength
• High tensile and flexural strength
• Highly chemical resistants against MIC and industrial chemicals in harsh environments


• High early and ultimate strength
• High tensile and flexural strength
• Highly chemical resistants against MIC and industrial chemicals in harsh environments
GeoStrong Repair Mortar
GeoStrong mortar is a corrosion-resistant geopolymer mortar that allows for fast application, up to three inches in one layer, with fast finishing and reduced time between lifts.For technical data, please contact us


• Bridges
• Buildings
• Parking structures
• Chemical plants


• Geopolymer reaction minimizes/eliminates cold joints between layers
• High early and ultimate strength
• High tensile and flexural strength
• Highly chemical resistant
Concrete Cloth GCCM
Have questions? Check out our frequently asked questions regarding our Concrete Cloth GCCM. Contact us if you would like to know more.
Geopolymer is a term originally coined by French researcher Joseph Davidovits to describe a class of cement formed from aluminosilicates. Traditional portland cement relies on the hydration of calcium silicates, but geopolymers form by the condensation of aluminosilicates. The kinetics and thermodynamics of geopolymer networks are driven by covalent bond formation between tetravalent silicon and trivalent aluminum. The molar ratio of these key components along with sodium, potassium, and calcium have been shown to affect set-time, compressive strength, bond strength, shrinkage and other desired properties. 
In various parts of the world, this type of material is also industrially known as alkali-activated cement or inorganic polymer concrete. Geopolymers are known to provide comparable or better performance to traditional cementitious binders but with the added advantages of significantly reduced greenhouse emissions, increased fire and chemical resistance and reduced water utilization. 
No.  When you see the term geopolymer for the first time, you might assume the material will be a plastic, like HDPE or polyester. While it is true that plastics are polymers, not all polymers are plastics. So instead of thinking of the materials you find that make up plastic bottles or food storage containers, you should imagine a material that behaves like cement.

Our GeoSpray® geopolymer mortar has the look and feel of most standard cements—its geopolymer powder containing pozzolans is mixed directly with water to form a mortar just like standard cement materials. GeoSpray mortar has been specially formulated for centrifugal casting of large diameter pipes, but its processability and workability are like what you might expect from a cement mortar.  

You can think of GeoSpray mortar as an “advanced cement.” Compressive, tensile and flexural properties of GeoSpray mortar have been engineered to meet or exceed the properties you would expect from a cement formulation.

The major advantage of a geopolymer over typical cement mortars is that a geopolymer has the chemistry of an engineered stone. The aluminosilicate network that forms the chemical structure of GeoSpray is like the chemical structure found in natural stones, such as zeolites or quartz. 

This stone-like chemistry is different from the hydration chemistry that is present in standard portland and calcium aluminate cements, which creates a distinct advantage in chemical resistance. Additionally, unlike standard cement mortars, GeoSpray mortar continues to react with itself for decades, building additional strength and enhancing its service life expectancy. 

For additional questions you should be asking your geopolymer supplier, please read our article, “8 Questions to ask Your Geopolymer Supplier.”

In the News
Check out recent articles featuring Milliken Infrastructure and Concrete Cloth.
Considerations When Working with Geopolymer Mortar - Trenchless Technology
Provided by
Joe Royer, PhD
September 10, 2018
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