Technical Information Sheet

 

AVIRON ADS Potable Water Grout

 

Article No. PP 806

 

Product base:

Cementitious coating system with a deep effect for preventive protection and for repairing potable water reservoirs. Hydraulic binders and cementitious aggregates.

Tests:

Test certificate Nr. E 750/88/px as well as test certificates Nr. E 2534 to 2545/px  KIWA Certificate Nr. 1017-01

 

Characteristic data of the product in the packaged form:       grey                               white

                                                                                                                           Art. No. 806                   Art. No. 807

 

Bulk density (DIN 1060):                                                                                    1.55 kg/l                        1.50 kg/l

Water requirements (grouting consistency):                                                        ~ 23%                           ~ 22%

Commencement of setting (corresponds to EN 196):450 min.                             300 min.

End of setting (as above):          500 min.                                                            400 min.

Volume stability (as above):       fulfilled                                                               fulfilled

Grain make-up (DIN 4188):       < 1 mm                                                              < 1 mm

Mortar density:                                                                                                    ca. 2.0 kg/l                     ca. 2.1 kg/l

Pot-life:                                                                                                                3 hours                          2 hours

Working temperature:                                                                                          +5° C     to                     +30° C

Packaging:                                                                                                          30 kg paper bags

 

Characteristic data of the product after hardening:               grey                              white

Flexural/tensile strength:                                                                                    

after 2 days:                                                                                                       > 3 N/mm²                     > 4 N/mm²

after 7 days:                                                                                                       > 4 N/mm²                     > 5 N/mm²

after 28 days:                                                                                                      > 5 N/mm²                      > 6 N/mm²

Compressive strength:

after 2 days:                                                                                                        > 15 N/mm²                   > 20 N/mm²

after 7 days:                                                                                                        > 25 N/mm²                   > 30 N/mm²

after 28 days:                                                                                                      > 30 N/mm²                   > 40 N/mm²

Adhesional/tensile strength:                                                                                 >   1 N/mm²                   >   1 N/mm²

Capillary water absorption W24: ~ 0.1 kg/m² × Öt                                                 ~ 0.1 kg/m² × Öt

Water vapour diffusion,

resistance coefficient µ:                                                                                       ~ 100                            ~ 100

Water load after:                                                                                                                                       7 days 10 days

Resistance according to DIN 4030:                                                                     "strong" attack            information on request

Property profile:

In concept,  ADS Potable Water Grout is a factory-mixed, surface waterproofing agent with cement-reactive additives - "rigid waterproofing grout" - self-supervised in compliance with DIN ISO 9001. The little shrinkage there is of approx. 0.5 mm after 28 days is essentially compensated by swelling of ~ 0.3 mm when water is stored. It is used in a system with Kiesol on damp substrates as described in the following. Compared with pure grout coatings, this provides considerably higher chemical resistance and a longer service life.  Because of its largely building material properties, a waterproofing effect is given not only according to the guidelines of Deutsche Bauchemie e.V. [German Construction Chemicals e.V.] but also suitability for potable water according to KTW recommendations. It has been tested from a microbiological stand point and is suitable for potable water, especially in water exchange zones and on ceilings since its cementitious surface does not essentially influence the growth of micro-organisms.

There is little anchorage of oxide precipitation (iron and manganese).

It hardens quickly on damp substrates and also at temperatures as low as +5° C.

The closed, even surfaces are easy to clean and disinfect, require little maintenance, are age resistant and have high abrasion resistance. In cases of structural changes, it is easy to repair or work over.

 

In General:

The KTW recommendations (German recommendations for plastics/potable water) apply for the health rating of plastics and other non-metal materials within the framework of laws concerning foods and commodities in potable water areas. These recommendations are published in the German Law Gazette 20. 1977. When testing, especially taste, odour, organic carbon content, chlorine depletion and germ behaviour are assessed. Multiplication of micro-organisms (germ behaviour) on materials for potable water areas is tested in compliance with DVGW regulations, technical rules, work sheet W 270, January 1984 edition.

Potable water reservoirs are usually constructed of water impermeable concrete but these are endangered by shrinkage cracks, construction joints, concealed pores (germs) and lime dissolving carbon dioxide, especially in soft water. Furthermore, acidic cleaners and greater mechanical loads when cleaning may subject the surfaces to additional loads.

 ADS Potable Water Grout in the  Kiesol System provides a tested and approved coating method that is mainly cementitious, giving deep protection .

The  Kiesol System can be variably adjusted to concrete quality and future load. It offers serviceable and economical solutions.

For a correct diagnosis, a water analysis should be ascertained as well as the type and quality of the concrete and the usual cleaner used.

 

We would like to point out that discoloration may appear when white  ADS Potable Water Grout is used on concrete made with slag cement because of an iron oxide reaction. This is especially the case when oxidising disinfectants or cleaners are used. Grey coloured  ADS Potable Water Grout should be used instead.

 

Substrates:

For cementitious coating using  ADS Potable Water Grout in the  Kiesol System with deep protection, a structurally sound, damp, cement-bound substrate (normally concrete, but also screed and cement render) is suitable. To expose pores, missing areas and cracks, clean first, dependent on load, by mist blasting, water-sandblasting or in certain cases by steam blasting. Protective measures, for example the covering of machines and equipment, should be carried out.

Open construction joints, defective areas and gravel pockets in the substrate are to be repaired with  ADS Potable Water Grout as a mortar. After removing rust from exposed steel in underwater areas, pre-coat with a grout consistency, then close with mortar consistency.

Dependent on layer thickness, a lean mortar is made with  Potable Water Grout by mixing 1:1 to 1:2 with washed sand (Construction Resin Filler) for sealing coves and broken out areas. Levelling layers (screeds, renders) should comply with KTW requirements.

 

Working Instructions:

The pretreated substrate should be damp but not shiny wet.  ADS Potable Water Grout is a ready-to-use, factory-mixed, dry mortar which is applied in an average layer thickness of 3 - 4 mm in compliance with ibh Guide Lines (total thickness). Approx. 7 litres of water per 30 kg bag are added to produce a grouting consistency with the grey Potable Water Grout and approx. 6.5 litres for filling consistency. For the white grout, 6.5 litres of water per 30 kg bag are needed for grouting  and approx. 6 litres for filling consistency.

Application areas and construction of the system:

1.  Ceiling and wall surfaces not in contact with water

Substrate treatment: water-sandblasting and mist blasting

a)   Smooth concrete as of B 35

·       In this case, surface improvement with deep protection through silicification suffices.

·        Kiesol is sprayed to saturation on the damp substrate (at least twice).

      Application rate: 0.25 kg/m5  Kiesol.

 

b)   Coarse pored and/or damaged substrates

·       Prime with  Kiesol diluted with water (deep protection) and apply grout

After the primer has been absorbed (approx. 1 hour), apply  ADS Potable Water Grout to the damp substrate in two layers, within one day. Layer thickness per application of grout is at least 1 mm, max. 1.5 mm. Even or smooth with a neoprene backed float (float with cellular rubber) until the surface is even and smooth. Silicify afterward with  Kiesol.

Application rate:                                                 0.3 kg/m²  Kiesol

                                                                                3.0 kg/m²  ADS Potable Water Grout

2.  Floor and wall surfaces in contact with water

Substrate treatment: Water-sandblasting and mist blasting

a)   Fine pored concrete as of B 35

·       Surface improvement with deep protection through silicification, however, by spraying at least three times to saturation.

      Application rate: 0.35 kg/m²  Kiesol

 

b)   Coarse pored concrete

·       Prime with  Kiesol thinned 1:1 with water and.

·       Apply grout twice, wet-on-wet in one day

The third application of grout is executed the following day (total layer thickness approx. 4 mm). Silicify again at the earliest in 3 days with undiluted  Kiesol.

     Application rate:                                            0.3 kg/m²  Kiesol

                                                                                        4 - 5 kg/m²  ADS Potable Water Grout

 

c)   Wait at least one day before applying the following layer on floor surfaces so they can be subjected to foot traffic.

      Total application rate:                                       0.3 kg/m²  Kiesol

4 - 5 kg/m²  ADS Potable Water Grout

 

3. Spraying application or when used as a filler

a)   Prime with  Kiesol and water 1:1.

       ADS Potable Water Grout can also sprayed on after adding a suitable amount of water, applying in two working operations.

      Total layer thickness: max. 4 mm

      After 3 days at the earliest, saturate with  Kiesol.

      Waiting time between the individual layers is at least 1 day.

      Application rate:                                                 0.3 kg/m²  Kiesol

                                                                                Approx. 5 – 6 kg/m²  ADS Potable Water Grout

 

b) Filler coating, especially for floor surfaces, after pretreatment and priming with  Kiesol thinned 1:1 in water. Apply the first layer with a toothed filling knife (4 mm tooth) and after it can be subjected to foot traffic (at the earliest in 2 days), smooth with a second layer, applying a final coat of  Kiesol as described above.

      Application rate:                                           0.3 kg/m²  Kiesol

                                                                              approx. 5 - 6 kg/m²  ADS Potable Water Grout

 

4.  Special applications:

a)   Splash water protection in plinth areas

·       On damp substrates, prime with Kiesol and produce a grout consisting of white  ADS Potable Water Grout with water mixed 1:1 with Haftfest I.

     

      Apply in two silicification treatments

      Application rate:                                             0.4 kg/m²  Kiesol

                                                                          3.0 kg/m² white  ADS Potable Water Grout

                                                                          0.3 kg/m²  Haftfest I

 

b)   Water tanks (fish tanks, rain water collecting basins, etc.)

After pretreatment and priming with  Kiesol thinned 1:1 in water, grout three times with grey or white  ADS Potable Water Grout. Use  Haftfest I and water 1:1 as the liquid additive.

Silicify afterward with undiluted  Kiesol.

      Application rate:                                           0.3 kg/m²  Kiesol

5.0 kg/m²  ADS Potable Water Grout

0.5 kg/m²  Haftfest I

 

Technical Notes:

General technical guide lines and especially the Deutsche Bauchemie e.V. guidelines apply.

Subsequent treatment (covering, keeping damp) is necessary for exterior surfaces in dry, warm weather and for interior surfaces if relative humidity is < 60%. Working temperature is at least +5° C and a max. of +30° C (substrate). If the setting time at low temperatures takes too long, the process can be accelerated by spraying the grout with  Kiesol (silicification treatment). The amount of  Kiesol needed is increased by 0.2 kg/m² per silicification treatment. If the potable water grout is applied without  Kiesol, pre-wet the substrate thoroughly and keep the grout moist. Never use warm air blowing equipment!

Acidic cleaners below pH 4 should not be used for cementitiously coated potable water surfaces. Other cleaners should only be used in the prescribed dilution and at the earliest after 7 days. When used in areas where water flows, e.g. spray chambers,  ADS Potable Water Grout should be covered with tiles or coated with Viscacid Epoxy Coating TW instead.

For general information, we recommend the IBH Code of Practice "Supplementary notes for coating the interiors of potable water reservoirs with rigid, cementitious waterproofing grouts".

 

Tools and cleaning:

Grouting broom, wide brush, toothed filling knife,  float with cellular rubber backing (neoprene) if necessary.

 

Recommended equipment for spraying: Desoi Pressure Tank with spray nozzle.

Clean tools and equipment while the grout is fresh with water.

 

Shelf-life:

At least one year stored dry in closed bags on wooden grids, protected from moisture.

 

 

Safety, Ecology, Disposal:

Details on safety during transport, storage and when handling as well as on disposal and ecology are found in the latest Safety Data Sheet.

 

 

 

 

The statements above are compiled from our field of production and according to the latest technological developments and application techniques. Since application and working are beyond our control, no liability of the producer can be derived from the contents of this information sheet.

Any statements made beyond the contents of this information must be confirmed in writing by the producer.

In all cases, our general conditions of sale are valid.

With the publication of this Technical Information Sheet, previous editions are no longer valid.

 

 

 

 

 

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