6135A AQURON 2000 for EXISTING CONCRETE

6135A AQURON® 2000 for EXISTING CONCRETE

1. GENERAL

This section relates to the application of AQURON®2000™ to form an internal hydrogel within the concrete for prevention of moisture movement in concrete, to provide concrete waterproofing. Guaranteed moisture control for concrete to be "covered" with floor coverings or coatings.

1.1 RELATED WORK Refer to ~ for ~

Documents

1.2 DOCUMENTS Refer to the general section 1233 REFERENCED DOCUMENTS. The following documents are specifically referred to in this section: ASTM C309-11 Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete

1.3 MANUFACTURER/ SUPPLIER DOCUMENTS Manufacturer's and supplier's documents relating to this part of the work:

AQURON® 2000™ products MSD Sheets AQURON® 2000™ products technical data

Manufacturer/supplier contact details Company: Markham Global

Email: [email protected] NZ: 0800 693 694 (++646 8422248) www.markhamglobal.com AUSTRALIA 1800 693 694 (++6174153 6286) www.markhamglobal.com.au

Warranties

1.4 WARRANTIES Guarantee to be for 15 years that the "supplied and applied" AQURON® 2000™ treatment will protect moisture migration from within AQURON® 2000™ treated concrete. Any areas where floorcovering or coatings are to be installed, the AQURON® CORPORATION 5 Rules & 8 Precautions are strictly followed.

Warrant this work under normal environmental and use conditions against failure.

Refer to the general section 1237 WARRANTIES for details of when completed warranties must be submitted.

Requirements

1.5 QUALIFICATIONS Application to be carried out by an AQURON® approved applicator strictly in accordance with manufacturers recommendations for AQURON® 2000™ as concrete moisture protection treatment. For approved applicators contact:

Markham Global. Refer to MANUFACTURER/ SUPPLIER DOCUMENTS for contact details.

2. PRODUCTS

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2.1 CONCRETE PROTECTION TREATMENT AQURON® 2000™ catalytic agent in a waterborne proprietary silicate base complies to moisture retention requirements of ASTM C309, a deep penetrating, non toxic waterborne solution which forms an insoluble calcium silicate gel within the concrete matrix. Tested to have nil crystalline silica.

3. EXECUTION

Conditions

3.1 RESPONSIBILITY Take responsibility for determining the method of producing the specified treatment of the surface.

3.2 TECHNIQUE DISCUSSION Before application arrange a meeting to confirm the method of preparation and surface treatment. Refer to AQURON® 2000™ Flooring Protection Treatment leaflet for Simple 5 Rules and 8 Precautions, this outlines key issues for flooring installers with detailed flooring installation information for AQURON® 2000™ treated surfaces.

Application - new concrete

3.3 Not applicable to this application.

Application - aged concrete

3.4 PREPARE CONCRETE Ensure the surface to be treated is clean, free of dirt, water, or any residues of sodium silicates, acrylic curing compounds, tilt slab release agents, paint adhesives, existing floor preparations, plasterboard sanding dust, plaster and other coatings. Where necessary grind the concrete prior to application of AQURON® 2000™. AQURON® 2000™ must be applied before any floor preparation and will not penetrate or set up any floor levelling compound.

3.5 APPLICATION OF AQURON® 2000™ FOR AGED CONCRETE Apply AQURON® 2000™ at a rate of 4.5m²/litre or at a rate to satisfy the absorbency of the concrete.

3.6 PREPARING FOR FLOOR COVERINGS AFTER AQURON® 2000™ APPLICATION Refer to Aquron® 2000™ Flooring Protection Treatment leaflet for Simple 5 Rules and 8 Precautions, this outlines key issues for flooring installers with detailed flooring installation information for AQURON® 2000™ treated surfaces.

3.7 REMOVE CONTAMINANTS Where oils or contaminants are purged to, or lay on the concrete surface, any such contaminants must be removed from the surface while still soluble or alternatively as they become dried. Determine on site the method of removing contaminants to use a progress sander with vacuum, grinding, shot blasting, scraping.

3.8 TIMING AND SURFACE ABSORBENCY Floor coverings or coatings should not be installed to AQURON® 2000™ treated concrete substrates earlier than 28 days from the date of the concrete pour or within 72 hours after the application of AQURON® 2000™.

Check the total floor area to ensure surface is absorbent and voids have not been filled or glassed over by AQURON® 2000™. Where this occurs abrade the surface before installing floor preparation, adhesives or coatings.

201310 – Web Version – AQURON 2000 for Existing Concrete 6135A Page 2 To ensure satisfactory adhesive grip and bonding as a part of general floor preparation, scrape, stone, or progress sand concrete floors before the application of further preparations and floor coverings.

3.9 RELATIVE HUMIDITY LEVEL Relative humidity levels "before and after" AQURON® 2000™ treatment will read the same or higher as AQURON® 2000™ "locks up" the moisture.

3.10 CONTAMINATION OR GLAZING Should any contamination or glazing be visible on the surface, test this with water. If this produces greasiness, this must be removed to ensure a moisture absorbing non - greasy surface.

3.11 CONDENSATION If condensation occurs do not install floor coverings until the ambient temperature of the area rises to allow absorption of the condensation into the general atmosphere. The concrete surface temperature must be greater than 7 to 8°C.

3.12 HARD POLISHED CONCRETE Grind/abrade any hard polished surface substrate before the installation of preparations, floorings or coatings.

3.13 ADHESIVES Where adhesives are applied over AQURON® 2000™ treated concrete allow sufficient tack off time as the greater percentage of moisture within the adhesives, needs to be released into the atmosphere.

Completion

3.14 LEAVE TO REQUIRED STANDARD FOR FOLLOWING PROCEDURES Leave adjacent materials, fittings and finishes clean and to the standard required by following procedures.

3.15 REMOVE RUBBISH Remove debris, unused materials and elements from carrying out this part of the work from the site.

4. SELECTIONS For further details on selections go to www.aquron.co.nz Substitutions are not permitted to the following.

4.1 AQURON SURFACE TREATMENT Product: AQURON® 2000™ Location: ~

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