Xypex Bio-San C500 is a uniquely designed admixture for integral, long-term protection of concrete in harsh sewage conditions with levels of H2S that cause microbial induced corrosion (MIC). Bio-San C500 combines potent antimicrobial protection along with the unique crystalline technology of the Xypex Admix C-Series.
Bio-San contains bio-active mineral solids that become permanently fixed within the cement matrix impairing bio-film formation thus inhibiting the growth of acid causing sewer bacteria such as Thiobacillus due to concentrations of H2S. The unique Xypex Crystalline Technology creates a permanent structure throughout the pores and capillary tracts providing waterproofing and enhanced chemical protection including acid and sulphate resistance. Bio-San C500 prevents microbial induced corrosion, stops infiltration/exfiltration of water, and provides acid and sulphate resistance, significantly extending the service life of concrete sewage collection systems and waste water infrastructure.
Advantages of Xypex
- Inhibits microbial induced corrosion
- Resists extreme hydrostatic pressure
- Resistant to aggressive chemicals (acids and sulphates)
- Can seal static hairline cracks up to 0.5 mm
- Becomes a permanent, integral part of the substrate
and cannot be punctured, damaged or lose adhesion
- Does not contain any VOCs
- Less costly to apply than most other methods
- Added to the concrete at the time of batching and therefore
not subject to weather and surface moisture constraints
- Manholes / Sewer Pipes
- Pump and Lift Stations
- Head Works
- Septic Tanks
- Industrial Structures
Xypex Bio-San C500 is packaged in 50 lb. (22.7 kg) pails. Contact the manufacturer for availability of customsized packaging to meet the requirements of your specific project.
1% by weight of total cementitious content.
Xypex products must be stored dry at a minimum temperature of 45ºF (7ºC). Shelf life is one year when stored under proper conditions.
Bio-San C500 Specific Details
Xypex recommended procedures for waterproofing concrete tie holes in new construction where Xypex Bio-San C500 concrete has been used to protect against MICC attack.
Xypex recommended procedure for crack repairs performed on the sewage side of concrete elements that contain Xypex Bio-San C500.
Xypex recommended procedure for repair of standard, small or medium-large sized deficiencies in Xypex Bio-San C500 treated concrete.
Pinheiros Sewage Pumping Station
Xypex Bio-San C500 was selected due to its ability to permanently waterproof the concrete and increase the structure’s resistance to sulfates and sulfuric acid attacks while preventing the growth of the bacteria that causes MIC.
Dresden Wastewater Treatment Plant Upgrade
The designer was concerned about protection of the concrete elements in this tank from the destructive processes associated with microbial induced corrosion. To protect against this Xypex Bio-San C500 antimicrobial admixture was chosen to be added to the concrete mix.
Sanofi Pasteur Toronto Water & Wastewater Management Facility
Consulting with the Xypex team, the engineers and contractors determined that using a Xypex system would be the ideal solution to protect and waterproof the new concrete structures.
To achieve this, Xypex Admix C500 and Xypex Bio-San C500 replaced the traditional coating specified for this job.
Both Xypex Admix C-500 and Bio-San C500 are added to the concrete mix at the time of batching, eliminating the need to apply a coating at a later date.
These Xypex products react with cement and the byproducts of cement hydration to fill the capillaries in the internal structure of the concrete, creating a non-soluble crystalline matrix to waterproof the concrete and protect it from chemical attack throughout its useful life.
By selecting Xypex Bio-San C500, the general contractor, Miron Construction Company Inc, saved time and money as this product provides comprehensive waterproofing and MIC resistance without any extra drying, curing or installation time.
With the Xypex Bio-San integrated into the concrete, the concrete is protected for the structure’s service life.
Largo Wastewater Treatment Plant
The concrete structures found in most wastewater treatment plants are subject to some of the harshest environments imaginable, including abrasion erosion, chemical attack, chloride ion-induced corrosion, freeze-thaw conditions, and microbiologically induced corrosion (MIC). Large cracks were power-chiseled to create a space to accept a dry-pack of Megamix II with Bio-San, which was then covered with a top coat of Megamix II with Bio-San. The Xypex repair mortar can be applied via sprayer or trowel at a thickness of 3/8 to 2 inches. It must be applied to a surface in saturated surface dry (SSD) condition.