GROUP ANALYSIS: TESTING OF FILLERS
| 项目名称： | GROUP ANALYSIS: TESTING OF FILLERS |
| 摘要： | THE FOLLOWING TEST PROCEDURES ARE ANTICIPATED: DETERMINATION OF PARTICLE SIZE DISTRIBUTION THROUGH WET SIEVING AT 0.09 AND 0.0063 MM INSTEAD OF PREVIOUS GRADING CURVE AND SLURRY ANALYSIS; BULK DENSITY AND VOIDS CONTENT ACCORDING TO RIGDEN WITH PRECISION TESTING; WATER ABSORPTION ACCORDING TO ENSLIN (MAXIMUM 4 HOURS) AS A DECISION AID - WHETHER EXPENSIVE DETERMINATION OF THE CLAY MINERALS HAS TO BE UNDERTAKEN OR NOT. FIRSTLY THREE STONE DUST SAMPLES ARE BEING SENT FOR TESTING WITH THE SPECIFICATIONS WORKED OUT BY THE GROUP DEALING WITH STONE ROADS AND MATERIALS. RESULTS WILL BE COMPARED AND EXPERIENCE EXCHANGED WITH THE HANDLING OF THE TEST SPECIFICATIONS, WHICH WILL BE REVISED IF NECESSARY. AFTERWARDS 6 FURTHER SAMPLES (2 COMMERCIAL STONE DUSTS, 2 NATURAL FILLERS OF REFINED CRUSHED SAND, 1 FILTER DUST AND 1 NATURAL FILLER OF GRAVEL SAND) WILL EACH BE EXAMINED TWICE BY ALL THE LABORATORIES IN A TRUE GROUP TEST. EVALUATION WILL BE IN ACCORDANCE WITH THE SPECIFICATIONS FOR THE STATISTICAL EVALUATION OF TEST RESULTS, PUBLISHED BY THE FORSCHUNGSGESELLSCHAFT FUER DAS STRASSENWESEN IN GERMANY. THIS ALLOWS PERMISSIBLE SCATTER AND INDIVIDUAL VALUES TO BE DETERMINED, TOGETHER WITH RESULTS UNDER REPEATED AND COMPARABLE CONDITIONS. |
| 状态： | Active |
| 资助组织： | BUNDESMINISTERIUM FUER BAUTEN UND TECHNIK |
| 项目负责人： | KRZEMIEN, R |
| 执行机构： | FORSCHUNGSGESELLSCHAFT FUER DAS STRASSENWESEN IM OEIAV |
| 开始时间： | 19790000 |
| 预计完成日期： | 19800000 |
| 主题领域： | Research；I36: Aggregates |
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