Concrete Admixture
AMX 5500
Lifetime Protection Against Microbial Corrosion
Microban®-powered, liquid antimicrobial admixture that fights bacterial growth, H2S corrosion & MIC1 – built into the concrete itself.
99.999%
Bacterial Kill Rate
40%> stronger
Than Untreated Concrete2
24/7 protection
For the Lifetime of the Structure
Up To 89%
Strength Retention vs Untreated2
1 Microbial-Induced Corrosion (of Concrete).
2 According to ASTM C1904-20 standard test method.
* Simulated imagery.
Lifetime Protection
Won't wash away, break down, or fade.
Third-Party Tested
ASTM C1904 & ISO 22196 certified.
No Mix Changes
Same cure time, finish & appearance.
BABA Compliant
Qualifies for federally-funded projects.
THE PROBLEM
H2S & Microbial-Induced Corrosion in sewer systems
In low-oxygen sewer environments, sulfate-reducing bacteria (thiobacillus) thrive in biofilm on pipe walls. They metabolize sulfates into H₂S gas — a colorless, “rotten egg” compound that reacts with surface moisture to rapidly degrade concrete. This Microbial-Induced Corrosion (MIC) is among the leading causes of structural failure in sewer infrastructure worldwide.
Organic matter, heat & seasonal shifts create anaerobic conditions.
Thiobacillus colonizes biofilm on pipe walls.
Sulfates convert to corrosive hydrogen sulfide gas.
Gas + moisture attacks concrete, reducing structural life.
Antimicrobial ruptures bacterial cell walls.
WHY AMX 5500
Four reasons engineers specify it
24/7 antimicrobial action
Microban® Antimicrobial Technology™ disrupts and ruptures microbial cell walls continuously — built into the concrete matrix permanently.
No compromise to mix
Visually undetectable. No change in cure time, finishability, or coloration (unless requested). AMX 5500 volume counts as mix water for w/c ratios.
Lower long-term cost
Extends structural serviceable life by fighting corrosion from day one, resulting in less frequent replacements, fewer cleanings, and reduced chemical usage.
Broad-spectrum protection
Fights bacteria, fungi, mold, mildew, and lichen — effective in both high-demand infrastructure and residential cosmetic surfaces.
Applications
Where AMX 5500 antimicrobial admixture performs
- Sewer & Stormwater Pipe
- Manholes
- Box Culverts
- Wastewater Treatment Facilities
- Pump & Lift Stations
- Composting Facilities
- Digesters & Clarifiers
- Wet Wells & Holding Tanks
- Headworks
- Bridge Spans & Pylons
- Patios & Porches
- Pools & Pool Decks
- Driveways & Sidewalks
- Garage & Shop Floors
- Precast / Prefab Wall Panels
- Basement Foundations & Slabs
COMPLIANCE
Made in South Carolina 🇺🇸 – federally compliant
AVAILABLE IN
Quantities for any size job
LARGE
250-gal Totes
Medium
50-gal Drums
small
4.5-gal Pails
HOW TO USE
Simple to integrate into any pour
1
If AMX 5500 has been sitting for an extended period, mix well before use. Do not dilute.
2
Use 122–128 fl oz (0.95–1.00 gal) per cubic yard of concrete. Count total AMX 5500 volume toward your water-to-cement (w/c) ratio.
3
Pour AMX 5500 into the mix while the drum is turning. Continue mixing for an additional 5–10 minutes for thorough distribution.
4
No changes to cure time, finishability, or color*. Wear the appropriate personal protective equipment.
*Let us know if tinting is required for treated structures within your municipality and/or project.
Third-party
Rigorous testing
Typical Properties
Technical specifications
Ready to spec AMX 5500?
Our specifications engineers are ready to work with you to get AMX 5500 specified for approval for your municipality or job.
Want more information? Fill out the form and our team will get right back to you, or request a Lunch & Learn for your team – no strings attached!
RELATED PRODUCTS
Complete concrete protection for sanitary sewer
Concrete Coating PSC 2306 is a one-part (1-K), silicone-based protectant, which, when paired with our AMX 5500 will provide the highest degree of protection for municipality wastewater systems. Developed as a more effective, safe alternative to toxic coal tar epoxy coatings, PSC 2306 in conjunction with AMX 5500 will significantly lengthen the serviceable life of sanitary & stormwater sewer systems with no harm to installers, residents, or the environment.