International Journal of Concrete Structures and Materials

Table 4 Volumetric optimal proportions of mixes.

From: Mix Design and Properties of Recycled Aggregate Concretes: Applicability of Eurocode 2

	NAC	RAC30	RAC65	RAC100
$\frac{S}{G_{1} + G_{2}}$	0.67	0.82	1.51	–
$\frac{G_{1}}{G_{2}}$	0.50	0.53	0.67	–
$\frac{S}{G R_{1} + G R_{2}}$	–	0.82	1.51	1.50
$\frac{G R_{1}}{G R_{2}}$	–	0.52	0.67	0.67

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