What is the correct batch ratio for mixing concrete?
The ratio of cement to river sand and stone determines the strength of the concrete. Here is a cheat sheet to ensure that you have the right strength of concrete for the job.
Your tools:
• Bucket / Tin
• Spade
• Wheelbarrow
![RATIO-1-(1).jpg RATIO-1-(1).jpg](https://www.buildit.co.za/getattachment/1b174ca0-050e-43bb-bb1a-42c3a2a99ca3/RATIO-1-(1).jpg.aspx)
To make 1 cubic metre of concrete, you will need: 5 ½ bags cement + 0.75 cubic metres sand + 0.75 cubic metres stone.
Medium-strength concrete suitable for domestic floors, footpaths and driveways.
![RATIO-2-(1).jpg RATIO-2-(1).jpg](https://www.buildit.co.za/getattachment/ac8f82ed-5e94-4b07-93a3-3724dd43e18d/RATIO-2-(1).jpg.aspx)
To make 1 cubic metre of concrete, you will need: 7 bags cement + 0.70 cubic metres sand + 0.70 cubic metres stone.
High-strength concrete suitable for precast concrete, heavy-duty floors.
![RATIO-3-(1).jpg RATIO-3-(1).jpg](https://www.buildit.co.za/getattachment/9d4331c0-97f5-4248-a0c2-78ebda06c662/RATIO-3-(1).jpg.aspx)
To make 1 cubic metre of concrete, you will need: 10 bags cement + 0.65 cubic metres sand + 0.65 cubic metres stone.
Use containers such as buckets, drums or tins. Use the same size container for measuring all the materials in a batch.
![RATIO-4-(1).jpg RATIO-4-(1).jpg](https://www.buildit.co.za/getattachment/f21359cf-fa3c-47c7-b89e-42880d867504/RATIO-4-(1).jpg.aspx)
Your tools:
• Bucket / Tin
• Spade
• Wheelbarrow
Large batches
Low-strength concrete suitable for house foundations.![RATIO-1-(1).jpg RATIO-1-(1).jpg](https://www.buildit.co.za/getattachment/1b174ca0-050e-43bb-bb1a-42c3a2a99ca3/RATIO-1-(1).jpg.aspx)
To make 1 cubic metre of concrete, you will need: 5 ½ bags cement + 0.75 cubic metres sand + 0.75 cubic metres stone.
Medium-strength concrete suitable for domestic floors, footpaths and driveways.
![RATIO-2-(1).jpg RATIO-2-(1).jpg](https://www.buildit.co.za/getattachment/ac8f82ed-5e94-4b07-93a3-3724dd43e18d/RATIO-2-(1).jpg.aspx)
To make 1 cubic metre of concrete, you will need: 7 bags cement + 0.70 cubic metres sand + 0.70 cubic metres stone.
High-strength concrete suitable for precast concrete, heavy-duty floors.
![RATIO-3-(1).jpg RATIO-3-(1).jpg](https://www.buildit.co.za/getattachment/9d4331c0-97f5-4248-a0c2-78ebda06c662/RATIO-3-(1).jpg.aspx)
To make 1 cubic metre of concrete, you will need: 10 bags cement + 0.65 cubic metres sand + 0.65 cubic metres stone.
Small batches
Use containers such as buckets, drums or tins. Use the same size container for measuring all the materials in a batch.
![RATIO-4-(1).jpg RATIO-4-(1).jpg](https://www.buildit.co.za/getattachment/f21359cf-fa3c-47c7-b89e-42880d867504/RATIO-4-(1).jpg.aspx)