BSI 14/30310358 DC:2014 Edition
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BS EN 12697-31. Bituminous mixtures. Test methods. Part 31. Specimen preparation by gyratory compactor
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 35 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 6 | Foreword |
| 10 | 1 Scope 2 Normative references |
| 11 | 3 Terms, definitions and symbols 3.1 Terms and definitions 3.2 Symbols |
| 13 | 4 Principle |
| 14 | 5 Apparatus 5.1 Test device 5.2 Metallic moulds |
| 15 | 5.3 Round metallic inserts 5.4 Device for measuring the distance between inserts 5.5 Device for counting the number of rotations to within one revolution 5.5.1 Ventilated oven for heating mould, metallic inserts and bituminous mixture to the accuracy given in EN 12697-38 5.5.2 Balance capable of measuring the mass of the mould and the bituminous mixture to the accuracy given in EN 12697-38 5.5.3 Thermometer capable of measuring the temperature inside the bituminous mixture to the accuracy given in EN 12697-38. 6 Preparation of specimens 6.1 Mass of mixture to be introduced in the mould 6.1.1 Preparation of specimens for further mechanical testing 6.1.2 Preparation of specimens for void content requirement 6.1.2.1 Dry mixtures |
| 16 | 6.1.2.2 Mixtures with a water content w 6.2 Preparation of mixtures |
| 17 | 7 Test procedure 7.1 Preliminary setting 7.1.1 Pre-load 7.1.2 Force F 7.1.3 Setting of the angle of inclination |
| 18 | 7.1.4 Speed of rotation 7.1.5 Temperature 7.2 Compaction 7.2.1 Start of compaction 7.2.2 Specimens for void content requirement |
| 19 | 7.2.3 Specimens for further testing 8 Test report |
| 20 | 9 Precision |
| 21 | Annex A (normative) Procedure for setting the angle and force for types of gyratory compactor using central reference material A.1 Scope A.2 Principle A.3 Gyratory-type testing procedure A.3.1 Central reference materials for gyratory-type testing |
| 22 | A.3.2 Force |
| 23 | A.3.3 Gyratory-type angle test A.4 Procedure to test the conformity of a gyratory compactor to a type A.5 Procedure for periodical check |
| 24 | A.6 Summary of the gyratory calibration chain |
| 25 | Annex B (normative) Procedure to evaluate the gyratory compactor internal angle of gyration using a self-contained measurement unit B.1 Scope B.2 Principle B.3 Equipment B.3.1 Measurement instrument B.3.2 Static angle block |
| 26 | B.4 Procedure B.4.1 General B.4.2 Determination of the bottom angle |
| 27 | B.4.3 Determination of the top angle |
| 28 | B.4.4 Repetitions of bottom and top angle determination B.5 Calculation |
| 29 | B.6 Compliance |
| 30 | B.7 Report B.8 Precision data B.9 Periodical check procedure |
| 31 | Annex C (normative) Procedure to evaluate the gyratory compactor (GC) internal angle of gyration and related parameters using simulated loading C.1 Scope C.2 Principle C.3 Procedure C.4 Calculation of results |
| 32 | C.5 Compliance |
| 33 | C.6 Report C.7 Precision and bias |
| 35 | Bibliography |
