Research Article

Mechanical Properties of Recycled Aggregate Concrete at Low and High Water/Binder Ratios

Table 1

Mix proportions and compressive strength of concretes#.

Type of concreteW/B ratio
Quantity of raw materials (Kg/m3)f cu, 28 (MPa)
CSNARCAWSFSP

255NAC0.255518578111901456229.3580.8
H-255NAC0.255518578111901456229.3576.8
255RAC0.255491548010611385927.8370.9
H-255RAC0.255507566010951426128.7265.6
586NAC0.5863935781119025847031.9
H-586NAC0.5863935781119025847031.6
586RAC0.5863655360103823944025.3
H-586RAC0.5863695420105024244031.1

Note: the symbols in Table 1 are as follows: C for cement, S for sand, NA for natural coarse aggregates, RA for recycled coarse aggregates, W for water, SF for silica fume, SP for superplasticizer, and f cu,28 for compressive strength of concrete at 28 days.