Some numbers

Being 38C today gives me an opportunity to sit in aircon comfort and crunch a few numbers.

Blocks poured to date – 467.42
Bags of cement used – 213.5
Blocks per bag – 2.19
Cement cost per block – $3.84
Sand cost per block – $1.55
Blocks per square metre – 5.55
Wall cost per square metre – $29.91

Cubic metres poured – 23.69
Guesstimated cubic metres wasted mix – 3
We are getting better at managing the wasted mix but it is not completely avoidable.

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