PENETRON ADMIX ® SB
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PENETRON ADMIX® SB CRYSTALLINE WATERPROOFING AND DURABILITY ADMIXTURE DESCRIPTION PENETRON ADMIX® SB (Soluble Bag integral crystalline waterproofing and durability admix) is added to the concrete mix at the time of batching. PENETRON ADMIX® SB’s various active, proprietary chemicals react with the moisture in fresh concrete and with the by-products of cement hydration to cause a catalytic reaction generating a non-soluble crystalline formation throughout the pores and capillary tracts of the concrete. Thus, the concrete becomes permanently sealed against the penetration of water or liquids from any direction. However, PENETRON ADMIX® SB treated concrete will still allow the passage of vapor through the structure (i.e. the concrete will be able to “breathe”). Even after the concrete has cured, PENETRON ADMIX® SB remains dormant in the concrete and will reactivate in the presence of moisture to seal capillary tracts and hairline cracks. The concrete is also protected from deterioration due to harsh environmental conditions. PENETRON ADMIX® SB has been specially formulated to meet varying project and tempera ture conditions (see Setting time and strength). Consult with a Penetron technical representative for additional detailed support on your project. APPLICATIONS Reservoirs Sewage and water treatment plants Secondary containment structures Tunnels and subway systems Underground vaults Foundations Parking structures Swimming pools Precast, cast-in-place and shotcrete applications TOTAL CONCRETE PROTECTION® DIRECTIONS FOR USE Dosage rate: PENETRON ADMIX ® SB is designed to be dosed at the rate of one soluble bag per cubic yard (or cubic meter) of concrete. For most mix designs in use, this falls within the range of acceptability of 1% by weight of cementing materials. Consult with Penetron’s Technical Department for assistance in verifying the appropriate dosage rate and for further information regarding enhanced chemical resistance and optimum concrete performance for your project. Mixing: PENETRON ADMIX® SB must be added to the concrete at the time of batching. The sequence of procedures for addition will vary according to the type of batch plant operation and equipment. The following are some typical mixing guidelines. For more detailed information on dosing procedures, contact your Penetron representative. Ready mix plant - Dry batch operation: Add PENETRON ADMIX® SB directly into the drum of the ready-mix truck and immediately before charging the drum with 60%-70% of the required mix water, along with 300-500 lb (136-227 kg) of aggregate. Mix the materials for 2-3 minutes to ensure the PENETRON ADMIX® SB is distributed evenly throughout the mix water. Add the balance of materials to the ready-mix truck in accordance with standard batching practices. Ready mix plant - Central mix operation: Ideally, PENETRON ADMIX® SB should be added directly into the central mix drum before all other ingredients. However, when this is impractical or unsafe, PENETRON ADMIX® SB can be added directly into the drum of the ready-mix truck immediately before charging with concrete. The dosed concrete should be allowed to mix in accordance with ACI guidelines or for a minimum of 70 revolutions at standard mixing speeds (approximately 5 minutes) to ensure even distribution of PENETRON ADMIX® SB throughout the concrete. Precast batch plant: Consult with a Penetron technical representative to determine if PENETRON ADMIX® SB would suit your precast batch plant operation or if one of our other packaging solutions may be more appropriate. NOTE: It is important to obtain a homogeneous mixture of PENETRON ADMIX® SB with the concrete. To avoid clumping and improve thorough dispersion, Penetron Admix should not be added to wet concrete. Please contact your Penetron Technical Representative for additional project specific guidelines should none of above recommended dosing methods not be implementable. For further information regarding the proper use of PENETRON ADMIX® SB for a specific project, consult with a Penetron technical r

PENETRON ADMIX® SB Setting time and strength: The setting time of concrete is affected by the chemical and physical composition of ingredients, temperature of the concrete and climatic conditions. Retardation of set may occur when using PENETRON ADMIX® SB. The amount of retardation will depend upon the concrete mix design and the dosage rate of PENETRON ADMIX® SB. However, under normal conditions, PENETRON ADMIX® SB will provide a normal set concrete. Concrete containing PENETRON ADMIX® SB may develop higher ultimate strengths than plain concrete. Trial mixes should be carried out under...