DETERMINATION OF THE DRY DENSITY OF BITUMINOUS MIXTURE AS A BASIS FOR DRAWING UP A STANDARD
| 项目名称： | DETERMINATION OF THE DRY DENSITY OF BITUMINOUS MIXTURE AS A BASIS FOR DRAWING UP A STANDARD |
| 摘要： | ACCORDING TO STANDARD DIN 1996, SHEET 7, USED IN AUSTRIA, THE STANDARDISED DETERMINATION OF DRY DENSITY CANNOT BE USED FOR CAPILLARY POROUS AGGREGATES AND THOSE HAVING OPEN PORES. WITH THESE STONES THE TESTING LIQUID PENETRATES INTO PORES WHICH ARE NOT FILLED WHEN MIXING WITH BITUMEN - A GREATER DRY DENSITY IS DETERMINED AND TOO GREAT A VOIDS CONTENT IS CALCULATED. PARAFFIN OIL OEAB 9 HAS AT ROOM TEMPERATURE ABOUT THE SAME VISCOSITY AS BITUMEN AT MIXING TEMPERATURE. IT CAN THEREFORE BE ASSUMED THAT IN RELATION TO THE VOIDS IN THE AGGREGATE IT BEHAVES IN A SIMILAR WAY TO BITUMEN IN THE ASPHALT MIXTURE. A GROUP ANALYSIS IS TO BE UNDERTAKEN TO CLARIFY WHETHER THE SOLVENTS NORMALLY USED AS TEST LIQUIDS CAN BE REPLACED BY PARAFFIN OIL WHEN POROUS ROCK IS PRESENT. THE FOLLOWING 4 TYPES OF BITUMINOUS MIXTURE AND ASSOCIATED AGGREGATES ARE TO BE EXAMINED: 2 SLAG BASALTS, 1 BLAST FURNACE SLAG AND ONE QUARRY GRAVEL. |
| 状态： | Active |
| 资助组织： | OESTERREICHISCHES NORMUNGSINSTITUT<==>BUNDESMINISTERIUM FUER BAUTEN UND TECHNIK |
| 项目负责人： | KRZEMIEN, R；VASILJEVIC, V |
| 执行机构： | OESTERREICHISCHES NORMUNGSINSTITUT (AUSTRIAN STANDARDS INSTITUTE) |
| 开始时间： | 19770000 |
| 预计完成日期： | 19770000 |
| 主题领域： | Research；I31: Bituminous Binders and Materials；I36: Aggregates |
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