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VAF<br />
In-situ Hollowcore slab<br />
535<br />
Total floor depth (mm) 750 750<br />
726<br />
Total foor mass (kg / m²) 1,247 906<br />
41.76<br />
% reduction in mass 0.00 27.32<br />
R 1,997<br />
Estimated cost (R / m²) R 2,110 R 2,250<br />
11.26<br />
% reduction in cost 6.23 0.00<br />
41,523<br />
Total mass of cement 80,561 53,274<br />
48.46<br />
% reduction in cement 0.00 33.87<br />
31.56<br />
Total mass of reinforcing 31.49 23.83<br />
0.00<br />
% reduction in reinforcing 0.23 24.51<br />
250.57<br />
Carbon footprint (kg/m 2 ) 376.06 287.62<br />
% Reduction in carbon footprint 0.00 23.52<br />
33.37
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