Issue 55

M. Mani et alii, Frattura ed Integrità Strutturale, 55 (2021) 50-64; DOI: 10.3221/IGF-ESIS.55.04

20

15

%100GSD

10

%100GSD(con)

5

Compressive Strength (MPa)

0

0

28

90

180

Age (days)

(a) Guemar Sand dune concrete (GSD)

20

15

10

40%GSD+60%NSR 40%GSD+60%NSR(con)

5

0

0 Compressive strength (MPa) 28

90

180

Age (days)

(b) Mixed sand concrete (GSD+NSR)

25

20

15

100%NSR 100%NSR(con)

10

5

0 Compressive Strength (MPa)

0

90

28

180

Age (days)

(c) Natural Sand Oued El-Ratm sand concrete (NSR) Figure 8: Impact of preservation medium in the case of compressive strength.

58