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Rapid Set Concrete Mix 20kg Bag
$12.91 inc. GST -
Post Set Concrete Mix 20kg Bag
$14.01 inc. GST -
High Strength Concrete Mix Pro 50 20kg
$12.91 inc. GST -
$12.21 inc. GST -
$33.00 inc. GST -
$11.50 inc. GST -
Cement Off White (Bricky Ivory)
$19.03 inc. GST
Aggregates and Concrete Mix Supply for Construction Projects
Aggregates and concrete mix sit underneath almost every civil, construction and landscaping job: a post footing, a small slab, a bedding layer or a patch repair. CivilSafe supplies aggregates and concrete mix in bagged form, so you can buy the quantity the job needs without ordering a full truck. The range suits contractors, builders, landscapers and maintenance crews working on small to mid-sized pours, and anyone who needs material on site quickly. Every listing states the bag size, the intended use and the mixing guidance, so matching product to job takes a minute rather than a phone call. CivilSafe is part of the wider Civil and Construction Safety Products Australia range, which covers the site safety, signage and consumables usually ordered alongside a pour.
Bagged Concrete Mix: Rapid Set and Post Set Compared
Bagged concrete mix is pre-blended, so you add water rather than measuring cement, sand and aggregate separately. Rapid set concrete mix hardens quickly, which suits repairs, small slabs and any job that has to reopen to traffic or pedestrians sooner. Post set mix is blended for securing posts in footings, from fence and letterbox posts to sign and bollard bases. Choosing between them comes down to what is being fixed and how long the area can stay out of use. Read what the bag says it is for before you order, rather than deciding on price alone.
What Is Aggregate Concrete?
Aggregate is the granular material inside a concrete mix, and it does most of the physical work. It is usually sand, gravel or crushed stone, graded so the particles lock together while the cement paste binds them into a solid mass. Grading, shape and size affect how the mix handles, how much water it needs and how it performs once set. In a bagged concrete mix the aggregate is already blended and graded, which is why you only add water. Loose aggregate suits larger work such as bedding, drainage and base layers, where the material is placed without cement.
How Much Concrete Mix Do You Need?
Quantity is the most common reason a small pour goes wrong. Work out volume first: length by width by depth in metres gives cubic metres. For a post hole, calculate the hole and subtract the volume of the post sitting inside it. Allow about ten percent extra for waste, uneven excavation and loss through the base. Then compare that figure against the coverage each bag states on its product page, and round up. Under-ordering halfway through a pour leaves a cold joint, a visible repair and a second delivery to pay for.
Concrete Mix and Aggregate Delivery Across Australia
Ordering is straightforward whether you hold a trade account or you are buying for a single job. Pricing is GST-inclusive, there is no account requirement, and orders placed before the daily cut-off dispatch same day. Bagged product ships Australia-wide with tracking, and delivery can be booked to a site address where someone can receive and unload it. Pallet quantities need forklift access or a hard stand, so tell us about the site when you order. Account holders also get the B2B portal with CSV upload ordering and multiple user roles. Pick-up from Bankstown is available if you would rather collect.
Frequently Asked Questions
What aggregates and concrete mix products does CivilSafe supply?
What aggregates and concrete mix products does CivilSafe supply?
The range covers bagged concrete mix for small pours, repairs and post setting, including rapid set and post set formulations in 20kg bags. Each product page states the intended application, bag size and mixing guidance so you can confirm it suits the job. Stock varies, so check live availability before ordering.
How many 20kg bags of concrete mix do I need?
How many 20kg bags of concrete mix do I need?
Calculate the volume of the hole or slab in cubic metres, add about ten percent for waste, then compare that against the coverage stated on the product page. Each bag lists the volume it fills when mixed as directed. For anything larger than a small pour, confirm quantities before ordering.
What is the difference between rapid set and post set concrete mix?
What is the difference between rapid set and post set concrete mix?
Rapid set mix is blended to harden quickly so an area can return to use sooner, which suits repairs and small slabs. Post set mix is intended for securing posts in footings. Both are mixed and placed to the instructions on the bag. Choose based on the job and downtime.
Is bagged concrete mix as strong as ready mix concrete?
Is bagged concrete mix as strong as ready mix concrete?
Bagged concrete mix is blended for the jobs it is sold for, such as post setting and small slabs, and it performs well when mixed as directed. Ready mix concrete is batched for larger pours and specified grades. What governs the result either way is the mix design and how much water goes in, not whether the material arrived in a bag or a truck.
How much water do I add to a 20kg bag of concrete mix?
How much water do I add to a 20kg bag of concrete mix?
Add only the water quantity stated on the bag. Extra water makes the mix easier to place but reduces strength and increases shrinkage and cracking. Measure rather than estimate, mix thoroughly, then place and finish within the working time listed on the pack. Discard mix that has begun to stiffen.
How long before I can load a post set in concrete?
How long before I can load a post set in concrete?
Follow the curing time stated on the bag rather than assuming a figure. Cooler weather, shade and damp ground slow curing, while hot, dry or windy conditions dry the surface faster than the core sets. Keep posts braced and do not load them until the stated curing period has passed.
Can concrete mix be placed in wet ground or during rain?
Can concrete mix be placed in wet ground or during rain?
It can be placed in damp ground, but standing water dilutes the mix and washes cement away from the aggregate, which weakens the result. Bail or pump out the hole before placing and keep rain off fresh work. In cold conditions, protect the pour and allow longer curing.
Do you deliver aggregates to site?
Do you deliver aggregates to site?
Yes. Bagged product ships Australia-wide with tracking, and delivery can be booked to a site address where someone can receive and unload it. Pallet quantities may need forklift access, so tell us about site conditions when ordering. Pick-up from Bankstown is also available.
How should I store unused bags of concrete mix?
How should I store unused bags of concrete mix?
Keep bags dry, off the ground and under cover, stacked on a pallet and protected from moisture. Bags left in damp conditions absorb water and set hard. Use stock in rotation. Do not use product that has hardened in the bag or formed lumps that will not break up when mixed.
Do I need a trade account to buy aggregates?
Do I need a trade account to buy aggregates?
No. Pricing is GST-inclusive and retail customers can order without an account. Account holders get a B2B portal with CSV upload ordering, multi-user roles and compliance documents on file. Both paths use the same catalogue, dispatch timeframes and tracked delivery, with pick-up from Bankstown available to either.