The table below contains information about three different mixtures of concrete.
| Concrete mixture | Mixing ratio (cement : sand : coarse aggregate) | Compressive strength in MPa | Example of use |
|---|---|---|---|
| Mix P | 1 : 2 : 3 | 25 | Foundations |
| Mix Q | 1 : 2 : 5 | 18 | Driveways |
| Mix R | 1 : 1 : 2 | 35 | Structural columns |
What mass of coarse aggregate is needed for a batch of Mix Q concrete containing 6000 kg of sand?
3000 kg3000\text{ kg}3000 kg
6000 kg6000\text{ kg}6000 kg
15,000 kg15,000\text{ kg}15,000 kg
30,000 kg30,000\text{ kg}30,000 kg
Practise Edexcel GCSE Chemistry Bulk and surface properties of matter including nanoparticles with exam-style questions for Foundation and Higher tier. 63 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
