Page 307 - New Trends in Eco efficient and Recycled Concrete

(2001).

al. f cm b MPa 35.5 38.3 43.6 c 35.9 d
et
Han
from
RAC2 SP a (%) 1.4 1.9 1.0 1.0

and
NAC2 Water kg/m 3

(2004); 165 179 180 180

Etxeberria Cement I CEM kg/m 3

from 300 325 327 327 aggregate.

RAC1 4/25 concrete

and RCA kg/m 3 1123 1008
NAC1 recycled RCA,

mixes: 4/25 concrete;

selected NA kg/m 3 1207 1097 aggregate

of
strength 0/4 FA kg/m 3 765.1 683.2 726 726 RAC, recycled

compressive concrete;

and RCA density kg/m 3 2431 2380 aggregate admixture). days. 28 at
proportions natural NAC, (water-reducing cylinder on values. values.

Mix RCA absorption h 24 (%) 4.45 5.73 aggregate; strength reported 2 reported 10

10.4 a Superplasticiser from from
Table Unit NAC1 RAC1 NAC2 RAC2 NA, natural b Compressive c Average d Average