### Mix Design & Calculation Chart - Boral

2019-1-14 · 50 2.5 3.8 5.0 6.3 7.5 For rectangular slabs, paths and driveways 1. First calculate the area: Area square metres(m2) = length x width (metres) 2. Then use the following table: Materials Foundations & large masses General use, paths, floors etc General use, higher strength cement 1 1 1 sand 3 2.5 2 stone or gravel 5 4 3 Mix (as per concrete …

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