Page 306 - New Trends in Eco efficient and Recycled Concrete

NAC1 (2001). al. et Han from RAC2 and NAC2 (2004); Etxeberria from RAC1 and f cm b SP a Water Cement 4/25 RCA I CEM MPa (%) kg/m 3 kg/m 3 kg/m 3 35.5 1.4 165 300 38.3 1.9 179 325 1123 43.6 c 1.0 180 327 35.9 d 1.0 180 327 1008 aggregate. concrete 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