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EN12697-1-2020
1
Foreword
6
Introduction
9
1 Scope
10
2 Normative references
10
3 Terms and definitions
10
4 Preparatory treatment of laboratory samples of bituminous mixtures
11
5 Determination of binder content
11
5.1 General principles of test
11
5.2 Binder extraction
12
5.2.1 Solvent
12
5.2.2 Apparatus
12
5.2.3 Procedure
12
5.3 Separation of mineral matter
13
5.3.1 Apparatus
13
5.3.2 Procedure
13
5.4 Binder quantity
13
5.4.1 Apparatus
13
5.4.2 Procedure
13
5.5 Calculation and expression of results
14
5.5.1 General
14
5.5.2 Binder determined by difference
14
5.5.3 Binder by total recovery
14
5.5.4 Binder by recovery from portion (volume calculation)
14
5.5.5 Binder by recovery from portion (mass calculation)
15
6 Drying to constant mass
15
6.1 General
15
6.2 Apparatus
15
6.3 Procedure
16
7 Reporting of results
16
7.1 Results
16
7.2 Test report
16
8 Precision data
16
8.1 Precision – Experiment 1
17
8.2 Precision – Experiment 2
17
8.3 Precision – Experiment 3
18
Annex A (informative) Guidance on the determination of binder content
19
A.1 Evaluation of the results
19
A.2 Effect of water content
19
A.3 Choice of test equipment and the sequence of operations
20
A.4 Determination of total binder content
20
Annex B (normative) Use of equipment for the determination of binder content
22
B.1 Binder extraction
22
B.1.1 Hot extractor (paper filter) method
22
B.1.2 Hot extractor (wire mesh filter) method
25
B.1.3 Soxhlet extractor method
27
B.1.4 Bottle rotation machine method
29
B.1.5 Centrifuge extractor method
31
B.1.6 Cold mix dissolution of bitumen by agitation
33
B.2 Separation of mineral matter
33
B.2.1 Continuous flow centrifuge
33
B.2.2 Pressure filter
35
B.2.3 Bucket type centrifuge – Type 1
36
B.2.4 Bucket type centrifuge – Type 2
37
B.3 Soluble binder content
38
B.3.1 Method by recovery from a portion using a volume calculation
38
B.3.2 Method by recovery from a portion using a mass calculation
40
Annex C (normative) Determination of residual mineral matter in the binder extract by incineration
41
C.1 General
41
C.2 Method 1
41
C.2.1 Apparatus
41
C.2.2 Reagent
41
C.2.3 Procedure
41
C.3 Method 2
42
C.3.1 Apparatus
42
C.3.2 Procedure
42
Annex D (informative) Guidance on determination of soluble binder content of mixtures with polymer-modified binders
44
D.1 General
44
D.2 Preparatory treatment of laboratory samples of bituminous mixtures
44
D.3 Determination of binder content
44
D.3.1 General principles of test
44
D.3.2 Binder extraction
44
D.3.3 Separation of mineral matter
46
D.3.4 Binder quantity
47
D.3.5 Calculation and expression of results
47
D.4 Drying to constant mass
47
D.5 Reporting of results
47
D.6 Precision data
47
Bibliography
48
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