Sand & Gravel Mix Ballast - 850kg
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The RangeTurfworld Sand & Gravel Mix Ballast - 850Kg Bulk Bag - Sandy
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£150.00
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B&Q - Turfworld Sand & Stone Ballast Mix (Ballast) 850Kg Bulk Bag
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£200.00
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Product Information
Full details
The B&Q 850kg Sand & Gravel Mix is an essential, high-quality ballast blend designed for construction professionals and DIY enthusiasts who need a reliable aggregate for concrete projects. By providing a pre-blended ratio of sharp sand and graded stones, this product streamlines the process of mixing concrete for foundations and structural work, though users should note that the large bulk bag requires adequate storage space and mechanical equipment for offloading or transport.
All features
| Model Part Number | 1386847 |
|---|---|
| Brand | B&Q |
Extended Product Information
FAQs
How much concrete will one 850kg bag produce?
Yield varies based on your specific mix ratio (cement to ballast), but generally, this bag provides enough material for a significant foundation project.
Do I need to add anything other than water and cement?
No, this is a ready-to-use blend of sharp sand and gravel. You only need to add Portland cement and clean water.
Can this be used for decorative purposes?
While the mix is uniform, it is designed for structural concrete. It may not provide the aesthetic finish expected from decorative gravel or decorative sand.
How long can I store the bag before use?
As long as it is kept dry and off the ground, the ballast materials do not expire. However, prevent the bag from tearing to avoid losing material.
Is this suitable for laying patio slabs?
This mix is typically used for sub-bases or concrete foundations. For bedding the slabs themselves, you may prefer a dedicated sharp sand or paving mortar mix.
Troubleshooting
Concrete is crumbling after drying
Check your mix ratio; you may have used too much ballast relative to the amount of cement added.
Mixer is struggling to turn the load
The aggregate is heavy; ensure you are adding water gradually and not overloading the mixer drum beyond its rated capacity.
Surface of concrete is uneven
Ensure you are using a vibrating plate or manual tamping rod to remove trapped air pockets during the setting process.
Pros and Cons
Pros
- Eliminates the need for manual blending of sand and gravel
- Suitable for both heavy-duty professional structural work and home DIY projects
- High-quality, screened aggregates ensure a consistent mix every time
- Substantial bulk capacity reduces frequent material restocking
Cons
- Requires access for a delivery vehicle or mechanical aid for transport
- Heavy weight makes manual handling impossible without tools
- Outdoor storage can be difficult if not protected from moisture
Setup, Compatibility & Care
Handling and Setup
Due to the 850kg weight, the delivery vehicle will require adequate space to drop the bag as close to the worksite as possible. Use a shovel or a mechanical loader to transfer the ballast to your mixer.
Compatibility
This product is compatible with all standard Portland cements. If you are adding additives, such as waterproofers or concrete accelerators, ensure they are thoroughly mixed into the wet concrete stage.
Care and Storage
To maintain the quality of the sand and gravel, keep the bulk bag covered with a tarpaulin. Exposure to heavy rain can saturate the sand, which alters your water-to-cement ratio and may lead to a weaker concrete mix. Avoid storing directly on damp ground if possible; placing the bag on a pallet can prevent moisture wicking from the bottom.