ITP - Concrete Repair

• Site conducted

  Select

• Dapcor - 16 Booralee St, Botany NSW 2019

• Location:
  Address

• Conducted on:

  Date

• Prepared by (Dapcor Representative):

• Project Name:

  Select 21034 - 45-47 Vermont St, Sutherland 21130 - 87-97 Yarranabbe Road DARLING POINT NSW 2027 22022 - 20 Young St, Neutral Bay_Fire Upgrade 22043 - Manhatten Apartments - Level 7 waterproofing works 22071 - 4 Macleay St, Potts Point NSW 2011 (Windows replacement) 22100 - 637-641 Pittwater Road, Dee Why (RHM) 22106 - 2C Munderah Street, WAHROONGA NSW 2076 22110 - 451 Glebe Point Rd, Glebe 22116 - 932 Pittwater rd DEE Why (ACP Ocean Grove Seniors Living Village 22117 - 2-6 Bundarra Ave, Wahroonga 22125 - 37 Melody St, Coogee 22139 - 2A Wentworth Street, POINT PIPER 22151 - 2 Broughton Rd, Artarmon 23028 - 29 Lorne Avenue, Killara - NSW (Project Remediate) 23044 - 200-218 Goulburn Street, Surry Hills. Project Remediate 23047 - 20 Pyrmont Bridge Road, Camperdown (PR) 23060 - 34 George St, Burwood - Awning strengthening

  • 21034 - 45-47 Vermont St, Sutherland
  • 21130 - 87-97 Yarranabbe Road DARLING POINT NSW 2027
  • 22022 - 20 Young St, Neutral Bay_Fire Upgrade
  • 22043 - Manhatten Apartments - Level 7 waterproofing works
  • 22071 - 4 Macleay St, Potts Point NSW 2011 (Windows replacement)
  • 22100 - 637-641 Pittwater Road, Dee Why (RHM)
  • 22106 - 2C Munderah Street, WAHROONGA NSW 2076
  • 22110 - 451 Glebe Point Rd, Glebe
  • 22116 - 932 Pittwater rd DEE Why (ACP Ocean Grove Seniors Living Village
  • 22117 - 2-6 Bundarra Ave, Wahroonga
  • 22125 - 37 Melody St, Coogee
  • 22139 - 2A Wentworth Street, POINT PIPER
  • 22151 - 2 Broughton Rd, Artarmon
  • 23028 - 29 Lorne Avenue, Killara - NSW (Project Remediate)
  • 23044 - 200-218 Goulburn Street, Surry Hills. Project Remediate
  • 23047 - 20 Pyrmont Bridge Road, Camperdown (PR)
  • 23060 - 34 George St, Burwood - Awning strengthening

• Manufacturer & Material(s) Used:

• Area(s) Completed:

Submission origin:

• E.g: Onsite / Offsite

  Onsite

  Offsite

Activity

• Electrical tagging of all machines are valid and within correct dates cross referenced with electrical tag register.

  Yes

  No

  N/A

• Subcontractor has undertaken a general walk-around in conjunction with the Superintendent to identify, measure and photographically survey locations of cracks and concrete spalling.

  Yes

  No

  N/A

• Images of survey locations of cracks and concrete spalling submitted for review and approval to proceed with rectification works. All such defects shall be jointly inspected by the Contractor and the Building Manager and recorded in writing and by photography

  Yes

  No

  N/A

• Dapcor shall bring to the attention of the Engineer, any existing defects that could at some time in the future be misconstrued as having been caused by the Dapcor.

  Yes

  No

  N/A

• Scope of Work issued by Northrop identifying application methodology to rectify cracks and concrete spalling.

  Yes

  No

  N/A

• Identify the structural system and check its elements for deterioration: (i) elements resisting vertical loads (floors, beams, columns, walls); and ‰ (ii) elements resisting horizontal loads (service cores, shear walls, braced frames, rigid frames)

  Yes

  No

  N/A

Surface Preparation

• Concrete surfaces cleaned within a minimum 50 mm each side of the crack

  Yes

  No

  N/A

• If the concrete surfaces adjacent to the crack are deteriorated, grind and remove concrete until a sound substrate is achieved

  Yes

  No

  N/A

• Ensure all surfaces for crack sealing are clean and free from: oil, grease, standing water, sand, debris, organic matter

  Yes

  No

  N/A

• Ensure the substrate is dry prior to crack repair material application, or moisture conditioned if required by the manufacturer's specification

  Yes

  No

  N/A

• The minimum age of newly repaired concrete that may be sealed is 4 weeks, or as nominated by the crack repair material manufacturer<br><br>

  Yes

  No

  N/A

• Follow any additional specific preparation requirements for each method of crack sealing as specified by manufacturer

  Yes

  No

  N/A

• Ensure the method of preparation does not cause weakness of the interface due to fracture or loosening of aggregates.

  Yes

  No

  N/A

• Visual inspection of sealed cracks: All sealed cracks

  Yes

  No

  N/A

• Penetration depth and adhesion of sealed cracks: All cracks sealed by gravity fed or injected resin.

  Yes

  No

  N/A

• Adhesion of routed and sealed cracks: All routed and sealed cracks. One test for the first 30 m of crack repair, then one per 100 m crack repair provided each test is successful, otherwise every 30 m of crack repair.

  Yes

  No

  N/A

• Inspection of crack bandaging: All bandages

  Yes

  No

  N/A

• Adhesion of crack bandaging adhesive: One test for the first 30 m of crack repair, then one per 100 m crack repair provided each test is successful, else every 30 m of crack repair.

  Yes

  No

  N/A

• Acceptance Criteria:
  The applied resin sealant will be deemed to have complied with the Standard where:

• 1. The finished product is uniform in appearance and profile with no visible. defects or deficiencies such as inadequate fill, sagging, voids, pinholes, contamination or any other defects

  Yes

  No

  N/A

• 2. There is no gap between the resin sealant and the concrete crack edges

  Yes

  No

  N/A

• 3. The injection of crack resin sealant has not resulted in delamination of concrete

  Yes

  No

  N/A

• 4. There is no ongoing water leakage.

  Yes

  No

  N/A

• Obtain all necessary permits and approvals and give all required notices

  Yes

  No

  N/A

• Acceptance Criteria:
  Depth of Material Penetration

• 1. Where there is a gap between the sealant and the concrete crack edges

  Yes

  No

  N/A

• 2. Where the depth of penetration does not completely fill the crack OR exceed 2/3 of the wall/element thickness, whichever is the greater

  Yes

  No

  N/A

• 3. Where the injection of resin has resulted in delamination of concrete.

  Yes

  No

  N/A

• 4. Where the depth of penetration of a test does not completely fill the crack OR exceed 2/3 of the wall thickness, undertake further testing at additional sites to demonstrate compliance to the satisfaction of Dapcor’s Representative.

  Yes

  No

  N/A

• Acceptance Criteria:
  – Adhesion of Routed and Sealed Cracks

• 1. Sealants not evidencing adhesive failure from testing, in absence of other indications of noncompliance with requirements, are to be considered satisfactory.

  Yes

  No

  N/A

• Acceptance Criteria:
  – Inspection of Crack Bandaging

• 1. Bond to the surface, presence of gaps or voids etc.

  Yes

  No

  N/A

• 2. Full envelopment of the bandage material in the bonding adhesive

  Yes

  No

  N/A

• 3. Presence of contaminants

  Yes

  No

  N/A

• 4. Complete removal of the centerline tape strip, leaving the bandage beneath clear of adhesive

  Yes

  No

  N/A

• The finished product is to be uniform in appearance and profile with no visible defects or deficiencies likely to impede on watertightness and bond strength.

  Yes

  No

  N/A

• The prepared concrete surface tensile capacity shall be greater than the minimum bond strength value as per manufacturers recommended installation guide as per data sheet and/or in accordance with engineers’ scope of work if available.

  Yes

  No

  N/A

• Schedule of Hold Points
  Hold - Approved repair materials
  Hold - Material testing
  Hold - Crack injection material properties
  Hold - Submission of areas for repair marked out by Constructor.
  Hold - Selection of trial location
  Hold - Preparation of substrate.
  
  Schedule of Witness Points
  Witness - Application of crack sealing material/system
  Witness - Inspection and testing.

Final Inspection

• Subontractor:

• Subcontractors Signature:

  Sign

• Date:

  Date

• Dapcor Representative Name:

• Dapcor Representative Signature:

  Sign

• Date:

  Date

• Photo 1

  Media

• Photo 2

  Media

• Photo 3

  Media

• Photo 4

  Media

• DOCUMENTATION: -
  Progressive photos are required as follows:
  1. Tagged Equipment
  2. Exclusion zones
  3. Harnessed workers/personnel if works are conducted via harness system.
  4. Progressive photos as per above activity requirements