Concrete Frequently Asked Questions
How early do I need to order before delivery?
We ask that you provide us with as much notice as possible, ideally a minimum of 24 hours.
What mix do I require?
Mixes vary greatly depending on application and ground conditions, please see our recommended use table or contact our sales office for more information.
How much does 1 cubic metre of concrete weigh?
This will depend on the mix and the type of aggregate being used but typically 2.3 tonnes.
What does slump mean?
The slump is a measurement of the workability of the concrete. As a guide:-
- Low Workability 0-40 mm is suitable for wheel barrowing
- A medium slump 50-60 mm can be placed using a dumper or similar
- A very workable slump is 80 mm or greater and is suitable for straight pours
- Pumped concrete is supplied at a 90 mm slump or higher
How do I know how much ready- mixed concrete material I need?
Use our handy volume calculator.
How can I pay?
If you do not have a trading account our preferred method of payment is credit or debit card.
How quickly will ready-mixed concrete set?
This will depend on the method of curing, type of mix used and weather conditions. However you should have between one and two hours in which to place and compact the ready-mixed concrete.
How far away can a concrete mixer place my ready-mixed concrete?
The chutes carried by all our mixer trucks mean that we can place ready-mixed concrete up to a maximum 2.5 m from the centre rear of the vehicle.
What access do the trucks need?
Our vehicles are heavy. If they need to leave the public highway, we cannot be held responsible for any damage caused to the site and you will be asked to sign a disclaimer. If you think the access may be a problem, you can ask us to come and look at your site or request a minimix vehicle which is lighter or smaller. See also our information about the size of our vehicles.
How long am I allowed the delivery truck for?
Up to 30 minutes is included for the 4m³ mixer and up to 40 minutes for the 6m³ mixer. After the allowed time you may incur a waiting time charge. Please speak to our Sales Office for further details.
Is ready-mixed concrete dangerous?
It can be, wet concrete can burn and cause dermatitis. We advise caution when handling ready-mixed concrete and refer you to our Health and Safety Data Sheet.
Is compaction / vibration really necessary?
Yes. Failing to tamp, compact or vibrate the wet ready-mixed concrete could leave air pockets which could weaken the structure and reduce its durability. Also, the process ensures the ready-mixed concrete is at its most dense and, where reinforcing metal is used, ensures that the bond is at its best.
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|Application||Designated Concrete||Standard Mixes||Recommended Consistence Class|
Floors & Roads
|Livestock floors and aprons||RC28/35||N/A||S2/S3|
|Crop store floors||RC28/35||N/A||S2/S3|
|Floors & walls for silage||RC32/40||N/A||S2/S3|
|Workshop floors subject to fork lift trucks||RC32/40||N/A||S2/S3|
|Brewers grain stores||RC35/45||N/A||S2/S3|
|Floors for parlours and dairies||RC28/35||N/A||S2/S3|
|Floors for manure and slurry storage||RC32/40||N/A||S2/S3|
|External yards & roads||PAV2||N/A||S2|
|Application||Designated Concrete||Alternate Mixes||Consistence Class|
Foundations requiring DC-1 concrete
|Strip foundations (Non reinforced)||Gen 1||ST2||S2/S3|
|Strip foundations (Reinforced)||RC25/30||N/A||S2/S3|
|Kerb backing and bedding||Gen0||8-1 'P190 'ST1||S1|
|House floors with no embedded metal||Gen3||6-1 'P240 'ST2||S2/S3|
|Permanent finish to be added e.g. screed||Gen3||6-1 'P240 'ST2||S2/S3|
|No permanent finish to be added e.g. carpet||Gen3||6-1 'P240 'ST2||S2/S3|
|Garage Floors with no embedded metal||C25/30||5-1 'P240 'ST4||S2/S3|
|Reinforced house floors||C25/30||5-1 'P300 'ST4||S2/S3|
|Reinforced garage floor||RC28/35||6-1 'P330 'ST5||S2/S3|
|House drives and domestic external parking||PAV1||N/A||S2|
|Heavy duty external parking||PAV2||N/A||S2|
|CONSISTENCE CLASS||SLUMP RANGE (mm)||TARGET SLUMP (mm)|