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Capitolo 3.qxd - Hilti

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Diagramma 2: per superfici sabbiate<br />

(Ruvidità media R t > 0.5 mm, ovvero altezza picchi > 1 mm circa)<br />

Rdj [N/mm 2 ] Rdj [N/mm 2 ]<br />

1.15<br />

1.10<br />

1.05<br />

1.00<br />

0.95<br />

0.90<br />

0.85<br />

0.80<br />

0.75<br />

0.70<br />

0.65<br />

0.60<br />

0.55<br />

0.50<br />

0.45<br />

0.40<br />

0.35<br />

0.30<br />

0.25<br />

0.20<br />

5.0<br />

4.8<br />

4.6<br />

4.4<br />

4.2<br />

4.0<br />

3.8<br />

3.6<br />

3.4<br />

3.2<br />

3.0<br />

2.8<br />

2.6<br />

2.4<br />

2.2<br />

2.0<br />

1.8<br />

1.6<br />

1.4<br />

1.2<br />

1.0<br />

0.8<br />

0.4<br />

0.00<br />

0.02<br />

0.5<br />

C5 0 / 6 0<br />

C4 5 / 5 5<br />

C4 0 / 5 0<br />

C3 5 / 4 5<br />

C3 0 / 3 7<br />

C2 5 / 3 0<br />

C2 0 / 2 5<br />

0.04<br />

C5 0 / 6 0<br />

C4 5 / 5 5<br />

C4 0 / 5 0<br />

C3 5 / 4 5<br />

C3 0 / 3 7<br />

C2 5 / 3 0<br />

C2 0 / 2 5<br />

0.6<br />

0.06<br />

0.08<br />

0.7<br />

Connessione di nuovi strati di calcestruzzo<br />

0.10<br />

Rapporto d'armatura, [%]<br />

0.8<br />

Rapporto d'armatura, [%]<br />

0.12<br />

0.14<br />

0.9<br />

0.16<br />

1.0<br />

0.18<br />

1.1<br />

0.20<br />

0.22<br />

1.2<br />

0.24<br />

1.3<br />

0.26<br />

0.28<br />

1.4<br />

0.30<br />

1.5<br />

0.32<br />

0.34<br />

1.6<br />

0.36<br />

1.7<br />

0.38<br />

Acciaio armatura, f yk = 500 N/mm 2<br />

1.8<br />

0.40<br />

Acciaio armatura, f yk = 500 N/mm 2<br />

305<br />

6

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