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BS EN 14770:2023

$142.49

Bitumen and bituminous binders. Determination of complex shear modulus and phase angle. Dynamic Shear Rheometer (DSR)

Published By Publication Date Number of Pages
BSI 2023 26
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This document specifies a general method of using a dynamic shear rheometer (DSR) for measuring the rheological properties of bituminous binders. The procedure involves determining the complex shear modulus and phase angle of binders over a range of test frequencies and test temperatures when tested in oscillatory shear. From the test, the complex shear modulus, |G*|, and its phase angle, Ī“, at a given temperature and frequency are calculated, as well as the components G’ and G” of the complex shear modulus. This method is applicable to un-aged, aged, stabilized and recovered bituminous binders. The test procedure in accordance with this document is not applicable for bituminous binders with particles larger than 250 Ī¼m (e.g. filler material, granulated rubber). WARNING – The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Principle
5 Apparatus
9 6 Preparation of rheometers
6.1 General
6.2 Selection of geometry
10 6.3 Set up
6.4 Zero gap setting
7 Specimen preparation
7.1 General
7.2 Heating procedure for the preparation of the binder
7.3 Specimen manufacturing and storage conditions
11 8 Procedure
8.1 General
8.2 Specimen placing into the rheometer
8.3 Gap setting
12 8.4 Temperature and frequency conditions selecting
8.5 Testing procedure
13 9 Expression of results
14 10 Precision
16 11 Test report
17 Annex A (informative)Temperature verification procedure
18 Annex B (informative)Determining equilibration time
19 Annex C (normative)Determination of the linear viscoelastic (LVE) range
20 Annex D (normative)Determining rheological parameters TX and Ī“TX
22 Annex E (informative)Flow chart
BS EN 14770:2023
$142.49