Barrier One Porosity Inhibiting Admixture is a high-performance concrete admixture that completely shuts down the route of concrete moisture movement. Barrier One, along with its sister product for outdoor use CSXtreme, are the only two scientifically proven porosity inhibiting admixtures (PIAs) on the market.

Barrier One totes



  • Life Of the Concrete Warranty©
  • Adhesion Guarantee
  • Project Specific Moisture Letter
  • Eliminates Field Moisture Testing for warranty consideration
  • Eliminates Topical Moisture Mitigation
  • Install Floors in as little as 7-days after concrete placement
  • Sodium Silicate Free
  • Creates Impermeable Concrete
  • Increases Strength
  • Used in Light and Normal Weight Concrete
  • Certified Shrink Reducer
  • Certified Corrosion Inhibitor
  • Certified Alkali Silica Reaction Inhibitor
  • Water to Cementitious Materials Ratio: 0.31 to 0.52
  • Inhibits Warping and Curling
  • Daily Testing
  • Eliminates Efflorescence
  • Resistant to Oils, Fats, and Acids
  • Deters Surface Dusting
  • Minimizes Surface Cracks
  • Increased Density

86% average reduction in shrinkage on submitted real-world mix designs

22% average increase from tested mix designs

42% average reduction in corrosion on submitted samples during a 1-year study

15,000+ field samples independently lab tested to confirm impermeability (ASTM D-5084)

ASR (Alkali Silica Reaction):
100% successful test results on all samples submitted during a 2-year study

Adhesion Testing:
100% successful installations on over 3,400+ samples, with no failures in over 15 years

* Results: 200 PSI over 6 weeks

In today’s construction environment, waiting for new concrete slabs to reach the levels of moisture mandated by flooring and roofing material manufacturers would derail the schedule and cause missed deadlines. Barrier One (PIA) is designed to eliminate the required moisture testing and alleviate the annual, multi-billion-dollar epidemic of construction delays and forced use of expensive topical moisture mitigation systems. Barrier One dosed concrete only requires 1 to 3 days of curing with a plastic sheet or waterproof paper, and slab coverings can be installed in as little as 7 days after the placement of the concrete.

Our products are the best in the business, but don’t take our word for it. We will provide proof of product performance to the engineers on your project. Barrier One admixture has been independently lab certified to mitigate concrete shrinkage and warping, as well as alkali silica reactivity (ASR). Our team of experts carefully examines the details of your project and provides expert guidance. We guarantee that Barrier One (PIA) will perform as specified, with no additional moisture testing required, and no unplanned moisture remediation expense.

We stand behind our product. We inspect mix designs prior to dosing and approve the application to ensure that the product is applied correctly. If there is a failure, Barrier One (PIA) assumes the liability and performs all testing required to determine the root cause.

Eliminate Risk

Barrier One (PIA) carries the concrete industry’s only project-specific “Life Of The Concrete”® warranty when specified and an industry best adhesion guarantee, backed up by an unprecedented project-focused quality control process.

Our admixture, when correctly applied using our process, carries a manufacturer’s warranty for the life of the concrete against moisture vapor emission flooring failures, including removal of failed flooring, topical remediation of the failed area, and all finish floor materials and labor like the original for any affected areas. This warranty is unmatched and is the best in the industry. Ask your legal professional to evaluate other admixture warranties.

This product, process and warranties earned Barrier One (PIA) a prestigious NOVA AWARD for “the construction industry’s top innovations – achievements that increase quality and efficiency and reduce cost."

Barrier One (PIA) plays an important role in LEED projects and contributes as a system toward LEED points. Barrier One (PIA) concrete admixture enhances the insulative qualities of the slab while increasing the useful life cycle of the concrete. As a zero VOC and sodium silicate free admixture, Barrier One contributes to healthy indoor air quality and helps construction team members to stay healthy throughout the construction process.

Admixture Designation ASTM-C494

Compression/Flexural ASTM-C39

Permeability Testing ASTM-D5084 (Completed over 15k)
Pore Structure Analysis and Permeability Testing

Surface Contamination Study Avomeen Analytics

Freeze Thaw ASTM-C666 (Procedure A)

Alkali Silica Reactivity (ASR) ASTM-C1260

Shrinkage ASTM-C157

Corrosion ASTM C1543
ASTM C1202

Deicing ASTM C672

Scanning Electron Microscope (SEM)