CHARACTERISTICS OF MATERIALS TO TAKE INTO ACCOUNT IN CALCULATIONS
| 项目名称： | CHARACTERISTICS OF MATERIALS TO TAKE INTO ACCOUNT IN CALCULATIONS |
| 摘要： | TO DEFINE ACCURATELY THE VALUE OF THE MATERIALS CHARACTERISTICS TO TAKE INTO ACCOUNT IN CALCULATIONS, IN EXISTING OR FUTURE REGULATIONS. ADVICE AND PROPOSALS WERE PUT FORWARD REGARDING THE DRAFT SPECIFICATION MODEL OF THE EUROPEAN COMMITTEE OF CONCRETE (CEB) AND THAT OF THE NEW REGULATION GOVERNING THE DESIGN OF PRESTRESSED CONCRETE STRUCTURES (VOLUME 52) ON THE FOLLOWING: TIME-RELATED RELATIONS BETWEEN COMPARATIVE STRENGTH, TENSILE STRENGTH AND MODULUS; SHRINKAGE AND CREEP OF CONCRETE, STEEL RELAXATION; LOSS OF PRESTRESSING IN THE CASE OF PRETENSIONING. IN 1979, PROPOSALS AND JUSTIFICATIONS WILL DEAL WITH: THERMAL AND HYDRAULIC SHRINKAGE DURING THERMAL TREATMENT; INFLUENCE OF THE RATE OF TEMPERATURE RISE ON THE LONG-TERM CHARACTERISTICS OF THERMALLY TREATED CONCRETE; EVOLUTION IN THE BULK DENSITY OF LIGHTWEIGHT CONCRETE ACCORDING TO CURING CONDITIONS. |
| 状态： | Active |
| 资助组织： | MINISTERE DES TRANSPORTS (MINISTRY OF TRANSPORT)<==>MINISTERE DE L'ENVIRONNEMENT ET DU CADRE DE VIE (MINISTRY OF ENVIRONMENT AND QUALITY OF LIFE) |
| 项目负责人： | ACKER, P |
| 执行机构： | LABORATOIRES DES PONTS ET CHAUSSEES - ROAD AND BRIDGE LABORATORIES |
| 开始时间： | 19770000 |
| 主题领域： | Law；Materials；Research；I32: Concrete |
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