| 000 | 00590nam a2200157 a 4500 | ||
|---|---|---|---|
| 005 | 20220228110618.0 | ||
| 035 | _aF8901000708412 | ||
| 084 | _aPCA BUL 33 1949 | ||
| 100 | _aPowers T. C. | ||
| 245 | _aair requeriments of frost-resistant concrete / by T. C. Pow-ers. | ||
| 260 | _aChicago : Portland Cement Association, Research Laboratories | ||
| 300 | _a28 p. | ||
| 440 | _aBulletin 33 / Portland Cement Association | ||
| 500 | _a"Authorized reprint from Proceedings, Highway Research Boar-d, Vol. 29 (1949)". | ||
| 690 | _aPresión Hidráulica - Estimación - Congelamiento del concreto | ||
| 999 |
_c58556 _d58556 |
||