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Technical Data Sheet

Product Name NOH2O / SCEM66
Description NOH2O was designed for the sealing of water with a high velocity washout rate as well as very high hydrostatic pressure. NOH2O is extremely penetrable and once coagulated, extremely flexible. Future ground movement or shocks from blasting or excavation will not result in water leaking again. Sealed single leaks with flow rates of 2600 GPM and inflows with pressures of 2500 P.S.I.
Code Hazard Identification
XTM2W135 Non Hazardous Substance/Non Dangerous Goods
Uses
  • Pre-Grouting
  • Remedial Grouting
  • Permeation Grouting
  • Reactive Grouting
  • Curtain Grouting
  • Back wall Grouting
NOH2O has been successfully used in many different environments including the following:

  • Geological features – fissures, aquifers, cracks voids
  • Water inflows in deep mines (Up to 2,5 mile vertical)
  • Water ingress into open cut mines
  • TBM and lined tunnels
  • Underground dam sealing
  • Shaft sealing - ventilation shafts / raised boreholes
  • Methane gas sealing
  • Underground military sites, Silos and bunkers
  • Basement parking garages
  • Bulkhead sealing
  • Underground waste depository sites
  • Retaining walls
  • Joint and crack repair
  • Ore passes
  • Lift wells
  • Reservoirs and Dams
  • Pipelines
  • Water Plugs
  • Salt mines - briny conditions
  • Hard rock, Soft rock and Sand environments
  • Fresh water, Brackish water and Brine
Advantages
  • Extremely permeable – forms Hydro colloidal solution in water. Particle size less than 1 Micron
    – (6 Nanometer)
  • Saves money on drilling costs due to super efficiency of grout spread
  • Viscosity: 2.5 cP (1.5 cP while grouting – miscible in water)
  • Does not wash out during grouting – sealed leaks of 50 Gallon /second successfully
  • Exceptional performance under high water pressure – successfully sealed static head of 2900
    P.S.I.
  • Curing can be chemically controlled from as short as 2 seconds to several days
  • Chemically selective – will seal water in oil wells but not hydrocarbons / crude oil
  • Seals saline and hyper saline water effectively
  • Performs well when pre-grouting shafts declines and pilot holes - due to extreme penetrability
  • Remains flexible once solidified and will not re-leak with ground movement – (350% elasticity)
  • Durable – no re-leak occurred during 40 years of grout history
  • Reaction is non - exothermic
  • Environmentally friendly – non Hazardous
Description
  • NOH2O grout is an Evolutive solution which is characterised by a steady increase in viscosity,
    as soon as the appropriate reagents are mixed.
  • NOH2O grout is also a Dilatant Fluid – having shear thickening characteristics which is
    particularly handy to control excessive grout spread
  • The NOH2O/SCEM66 grout system forms a compound, mixed with different additives to
    promote flow, adhesion, and coagulation. The substance at time of injection is a liquid with
    Specific Gravity (SG) 0.97 with a viscosity of 1,5cP.
  • NOH2O is a Non – Newtonian fluid, forming a hydro-colloidal solution in water and being
    miscible, will continue to disperse and travel where water travels
  • The characteristics of NOH2O grout can be altered by adding one or more of the following
    additives to achieve the desired results – controlling the curing times from rapid to delayed:
    Acticam100 – Atical500 – InhibitorWP – StabiliserPH – StabiliserC4 – ThickenerKK
Design Properties
Appearance Grey Liquid
Tensile Strength @ 100% Elongation ~1.08 MPA
Specific Gravity ~0.97
Elasticity Up to 350%
Viscosity 1.5 - 2.5cP.
Particle Size ~6nm.


Method Of Injection
NOH2O is injected into a water bearing crack or fissure via a hole drilled intersecting the flow. A multiport injector is inserted into the hole through which the NOH2O and/or additives are injected. More than one may be drilled for injection purposes. Generally, in situations where the flow velocity is moderately low, NOH2O will be sufficiently activated by agitation alone - stopping the flow. In high flow situations, chemical activation may be required.

Whereas the addition of activator results in NOH2O grout becoming unstable, followed by rapid coagulation, the addition of an inhibitor increases the stability, thereby reducing its tendency to coagulate when subjected to agitation. This enables the grout to be transported for greater distances through the formation before solidifying. The exact instruction is site specific depending on Lugeon, Water Take, and Dye connection tests and will be detailed in the site specific Safe Work Instruction (SWI)

Limitation
  • NOH2O/SCEM66 will degrade under sunlight or severe UV exposure and is therefore not suitable for surface applications
  • Temperature sensitive – to be transported and stored above freezing
Storage
  • Store in a tightly closed container in a sheltered, cool, dry, and well-ventilated area. Keep away from heat and flame. Store between 40°F & 90°F. Always keep from freezing
Technical Support
  • Sovereign provides technical expertise and turnkey grouting solutions. Grouting may only be undertaken by Sovereign trained personnel or Sovereign appointed individuals - Permission will be given in writing.
  • All grouting materials are tailored for specific grout designs and are site specific
  • Only Specialized grout pumps are suitable for NOH2O grouting
Important Notice
  • Please read this TDS with all relevant Material Safety Data Sheet’s (MSDS). Always read the MSDS carefully prior to use. In a medical emergency, contact any Poisons Information Centre or doctor for advice. Dial 911 in an emergency
Product Disclaimer
  • This Technical Data Sheet summarizes our best knowledge of the product. Sovereign does not accept any liability either directly or indirectly for any losses suffered In connection with the use or application of the product whether or not in accordance with any advice, specification, recommendation or Information given by it