AGFAB Engineering CONCRETE POUR CHECKLIST - (Rev 1)

• Client / Site Barwon Water Black Rock STP Upgrade

• Pre Pour Concrete Checklist

• Conducted on

  Date

Pour details

• Please nominate reference drawings

• Is structure a water retaining structure?

  Yes

  No

23.1 Concrete Quality

• Concrete mix to be poured

  Select S50 Pump Station S50 Piles N32 Mass concrete S40 Screen structure N32 Switch room building slab N15 Blinding S40 Other structures and slabs

  • S50 Pump Station
  • S50 Piles
  • N32 Mass concrete
  • S40 Screen structure
  • N32 Switch room building slab
  • N15 Blinding
  • S40 Other structures and slabs

23.2 Submission and Evidence

• Mix design and pour methodology approved by client? HP on ITP signed?

  Yes

  No

  N/A

23.3 Testing

• Is concrete tester booked?

  Yes

  No

  N/A

• Is concrete tester NATA accredited and approved by client?

  Yes

  No

  N/A

• Slump test - (test each batch prior to placing) requirement understood by tester?

  Yes

  No

  N/A

• Sampling (Compressive test) (1 test per 25m3 per mix per day) Confirm number of tests required for pour?

  Select 1 2 3 4 5 6 7 8 9 10

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

• Dry shrinkage ( Non water retaining - 1 sample every 3 months and every 200m3) (Water retaining - test first batch per pour and every 25m3 thereafter) Confirm number of shrinkage tests?

  Select 1 2 3 4 5 6 7 8 9 10

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

23.4 Formwork

• If formwork requires design has design been approved by the contract administrator?

  Yes

  No

  N/A

• Formwork is positioned as per drawings? Confirm dimensions below

  Select Drawing dimensions confirmed Drawing dimensions not confirmed

  • Drawing dimensions confirmed
  • Drawing dimensions not confirmed

• HDPE / PVC liner on forms as required by drawings and secure? Confirm with photo

  Yes

  No

  N/A

• Controlled permeability formwork liner is on critical surfaces and secure? Confirm with photo.

  Yes

  No

  N/A

• Void formers in locations as required by drawings?

  Yes

  No

  N/A

• Void formers are secure and will not deflect during placing and compacting of concrete?

  Yes

  No

  N/A

• Holes have been provided in rebate formers etc to prevent air entrapment? Confirm with photo.

  Yes

  No

  N/A

• Formwork free of water, rust, dust, debris and stains?

  Yes

  No

  N/A

23.5 Cores, Fixings and Embedded Items

• Are all cores and embedded items are in place as per the requirements of the drawings and subsequent trades? Mark on drawings.

  Confirmed markings on drawings

  Not able to confirm marking on drawings

• Are all cores and embedded items are accurately position and firmly supported?

  Yes

  No

  N/A

• Is there reinforcement cover to all cores and embedded items?

  Yes

  No

  N/A

• For slabs, confirm that fall on slab is correct?

  Yes

  No

  N/A

23.6 Placement

• Confirm predicted ambient temperature during ? If over 38 deg in the shade do not pour.

  Yes

  No

  N/A

• Confirm predicted ambient temperature during ? If over 38 deg in the shade do not pour.

• Confirm predicted time for discharge from list? Temperature reference is concrete temperature at time of discharge

  Select 10-24 deg 2hrs 24-27 deg 1.5 hrs 27-30 deg 1hr 30-32 deg 0.75 hrs

  • 10-24 deg 2hrs
  • 24-27 deg 1.5 hrs
  • 27-30 deg 1hr
  • 30-32 deg 0.75 hrs

• Confirm temperature limit for placement of concrete?

  Select PS and screen structures 25 deg Unreinforced concrete in sections > 1 mt each dimension 27deg Concrete > 40 MPa in sections > 500mm 27deg All other concrete 32deg

  • PS and screen structures 25 deg
  • Unreinforced concrete in sections > 1 mt each dimension 27deg
  • Concrete > 40 MPa in sections > 500mm 27deg
  • All other concrete 32deg

• Formwork temperature is less then 32 deg? Confirm with photo.

  Yes

  No

  N/A

23.7 Protection and curing

• Confirm approved curing method

  Select Retention of formwork Ponding or continuous sprinkling with water Impermeable membrane ( light coloured) Absorbent cover kept wet with membrane covering Steam curing Approved curing compound

  • Retention of formwork
  • Ponding or continuous sprinkling with water
  • Impermeable membrane ( light coloured)
  • Absorbent cover kept wet with membrane covering
  • Steam curing
  • Approved curing compound

• Confirm materials and equipement for curing are onsite ready to use?

  Yes

  No

  N/A

• Confirm curing time?

  3 Days switch room slab

  7 Days other structures

23.8 Concrete finish

• Confirm concrete finish?

  Select Water retaining structure all surfaces - class 2 Non Water retaining structure - all surfaces class 3 Finishes as laid exposed surfaces - steel trowel Finishes as laid hidden surfaces wood float Other

  • Water retaining structure all surfaces - class 2
  • Non Water retaining structure - all surfaces class 3
  • Finishes as laid exposed surfaces - steel trowel
  • Finishes as laid hidden surfaces wood float
  • Other

• 25mm chamfers in place for all exposed edges?

  Yes

  No

  N/A

• Confirm stripping time in days?

23.10 Joints

• Construction joints in location as per drawings? If no have the location been approved by the contract administrator

  Yes

  (No) Approval required by contract administrator

• Signature of Contractor Administrator if required

  Sign

• Construction joins are straight and true and free of blemishes?

  Yes

  No

  N/A

• Construction joints have been scabbled to not less the 5mm?

  Yes

  No

  N/A

• Confirm Water Stops installed as per drawings (Hydrotite CJ0725-3K on 50mm wide smooth surface)?

  Confirmed

  Not able to confirm

• Control Joints locations confirmed?

  Yes

  No

  N/A

• Expansions joints located as per drawings? No fixed bars through joint? Joint filler installed as required?

  Yes

  No

  N/A

23.11 Reinforcement Cover

• Wet well pump station structure - Confirm that there is adequate cover to reinforcement. Select minimum cover requirement from list

  Select Sewer facing concrete - 75mm Ground facing concrete - 75 mm Soffit of roof slab (internal) - 70 Top of roof slab (external) - 50 Elsewhere - 50

  • Sewer facing concrete - 75mm
  • Ground facing concrete - 75 mm
  • Soffit of roof slab (internal) - 70
  • Top of roof slab (external) - 50
  • Elsewhere - 50

• Screen structure - Confirm that there is adequate cover to reinforcement. Select minimum cover requirement from list

  Select Bored piles - 100 Underside of base slab - 100 Top of base slab - 75 Side of base slab - 60 Liquid face of walls - 75 External face of walls - 60 Inside face of bypass channels - 50 Inside face of precast walls - 50 Outside of precast walls - 60 Elsewhere - 50

  • Bored piles - 100
  • Underside of base slab - 100
  • Top of base slab - 75
  • Side of base slab - 60
  • Liquid face of walls - 75
  • External face of walls - 60
  • Inside face of bypass channels - 50
  • Inside face of precast walls - 50
  • Outside of precast walls - 60
  • Elsewhere - 50

24.3 Reinforcement certification and Identification

• ACRS cert available for reinforcement used?

  Yes

  No

  N/A

24.5 Standard Cogs and Hooks

• Standard cogs and hooks supply as per AS3600? Ligs have hook of at least 135 deg?

  Yes

  No

  N/A

24.6 Concrete edges

• There is one continious bar parallel to concrete edges unless otherwise noted?

  Yes

  No

  N/A

24.7 Trimmer bars

• Trimmer bars shown on drawings in place and secured?

  Yes

  No

  N/A

• N 12 trimmer bars by 1000mm at each layer at re-entrant corners openings and penetrations not shown on drawings?

  Yes

  No

  N/A

24.8 Placing and securing reinforcement

• Reinforcement bars are the correct size and spacing as per drawings?

  Confirmed as per drawings

  Not as per drawing

• Reinforcement supported at approx 800 mm centres with approved chairs, spacers or ligatures?

  Yes

  No

  N/A

• High strength fibre reinforced spacer blocks used for all structures with exposure classification B2 Greater ( i.e. All structures except the swithroom slab)?

  Yes

  No

  N/A

• Couplers and starters located in blockouts as required?

  Yes

  No

  N/A

• Reinforcement is electrically continuous?

  Yes

  No

  N/A

24.9 Placing and securing reinforcement

• Vertical reinforcement is lapped in locations as per drawings or as approved?

  Yes

  No

  N/A

• Confirm vertical bar laps.

  Select N12 = 350 N16 = 480 N20 = 690 N24 = 920 N28 = 1180 N32 = 1450

  • N12 = 350
  • N16 = 480
  • N20 = 690
  • N24 = 920
  • N28 = 1180
  • N32 = 1450

• Horizontal reinforcement is lapped in locations as per drawings or as approved?

  Yes

  No

  N/A

• Confirm horizontal bar laps.

  Yes

  No

  N/A

• Confirm mesh overlaps by two wires by at least 25mm

  Yes

  No

  N/A

24.11 Welding Reinforcement

• Reinforcement not to be welded unless shown on drawings or approved by Contract Administrator. Has welding of reinforcement been approved?

  Yes

  (No) Approval required by contract administrator

• Confirm no welds within bent sections (i.e. Within 75mm - N24, 100mm - N28 to N32, 125mm - N36)

  Yes

  No

  N/A

• Weld testing carried out i. Visual examination - 50% & Radiographic 5% fillet welds and 100% of butt welds

  Yes

  No

  N/A

24.12 Cutting and bending Reinforcement

• Has reinforcement been cut, bent or heated onsite?

  Yes

  No

  N/A

• Has approval been given by the contract adminstator to cut, bend or heat reinforcement onsite?

  Yes

  No

  N/A

• Signature of Contractor Administrator if required

  Sign

24.14 Dowel Bars

• Dowel bars are smooth and Hot Dipped Galvinised?

  Yes

  No

  N/A

• Dowel bars correct size and located as per drawings? Dowels are supported so they will not move during the pour?

  Yes

  No

  N/A

25.0 Inspection completion

• Name of the Person completing the checklist

  Select Greg Grima John Toner Greg Oman Ian McCormick Peter Barsby

  • Greg Grima
  • John Toner
  • Greg Oman
  • Ian McCormick
  • Peter Barsby

• Signature of the persons completing the checklist

  Sign

• Name of Barwon Water representative

• Signature of Barwon Water representative reviewing pour

  Sign