Australian GB Cement 20Kg
$9.25
Australian GB Cement 20Kg is a pre-blended Portland cement concrete mix batched for consistent 20 MPa+ compressive strength, suitable for footings, small pours, and general concrete works without a transit mixer. At BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
- AU Standard CertifiedAS 1684 & AS/NZS compliant
- Fast Metro DeliveryQuick turnaround from Hallam
- Trade Price MatchWe match any comparable price
- Premium MaterialsSourced from top Australian mills
- Expert AdviceSpeak to a local timber specialist
Melbourne delivery and pick-up options depend on your address and cart contents. Confirm fees and timeframes at checkout, or read our delivery information. Pick up & delivery
- Description
- Reviews (1)
Description
Overview
Australian GB Cement 20Kg is pre-blended at the plant from Portland cement, graded aggregate, and fine sand to a consistent water/cement ratio, eliminating site-batching variability. The standard mix delivers 20 MPa minimum compressive strength at 28 days — suitable for NCC Class 1–2 residential footings and non-structural pours.
Technical Specifications
- Mix type: Standard Portland cement blend (GP)
- Bag weight: 20 kg
- Yield: Approx. 9.5 L per 20 kg bag at standard consistency
- Compressive strength: ≥ 20 MPa at 28 days
- Initial set time: 30–90 minutes
- Water requirement: Approx. 3.0–3.5 L per 20 kg bag
- Compliance: AS 3972 (Portland cement), AS 3600 (concrete structures)
Best Applications
- Footings and pier pads
- Steps, paths, and non-structural slabs
- Pergola and clothesline post anchoring
- Patch repairs to existing concrete
- Garden edging and ornamental concrete
Delivery & Stock
Concrete bags stocked at BuildBarn, 3 Eastlink Drive, Hallam VIC 3803. 24–48 h Melbourne Metro delivery available for pallet quantities. Pallet pricing available for builders and concreters — contact the Hallam warehouse.
Delivering across Melbourne and Victoria
Supplying timber, decking, fencing and landscaping supplies with delivery coverage across Melbourne metro, outer suburbs and regional Victoria. Explore key areas below or browse the full location index.
1 review for Australian GB Cement 20Kg
Only logged in customers who have purchased this product may leave a review.
Daniel Wilson –
Their Australian GB Cement is top-notch! Smooth to work with and delivers great results. Plus, the delivery was quick and customer service was helpful.