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BS EN 12697-46:2020

BS EN 12697-46:2020

$142.49

Bituminous mixtures. Test methods – Low temperature cracking and properties by uniaxial tension tests

Published By Publication Date Number of Pages
BSI 2020 28
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This document specifies uniaxial tension tests for characterizing the resistance of an asphalt mixture against low temperature cracking. The results of the uniaxial tension tests can be used to evaluate the following:

  • tensile strength at a specified temperature, using the uniaxial tension stress test (UTST);

  • minimum temperature that the asphalt can resist before failure, using the thermal stress restrained specimen test (TSRST);

  • tensile strength reserve at a specified temperature (using a combination of TSRST and UTST);

  • relaxation time, using the relaxation test (RT);

  • creep curve to back calculate rheological parameters, using the tensile creep tests (TCT);

  • fatigue resistance at low temperatures due to the combination of cryogenic and mechanical loads, using the uniaxial cyclic tension stress tests (UCTST).

PDF Catalog

PDF Pages PDF Title
2 undefined
8 1 Scope
2 Normative references
3 Terms and definitions
10 4 Principle
11 5 Apparatus
5.1 Testing device for conducting UTST, TSRST, RT and TCT
5.1.1 General
5.1.2 Load device
13 5.1.3 Deformation measurement system
5.1.4 Load measurement system
5.1.5 Recording equipment
14 5.1.6 Thermostatic chamber
5.2 Testing device for conducting UCTST
5.2.1 Dynamic testing device
5.2.2 Monitoring system
15 5.2.3 Electronic signal amplifier
5.2.4 Thermostatic chamber
5.2.5 Recording equipment
6 Calibration
6.1 Testing device for conducting UTST, TSRST, relaxation test and tensile creep test
6.2 Testing device for conducting UCTST
16 7 Specimen preparation
7.1 Number of samples
7.2 Dimensions
7.3 Preparation
7.4 Bulk density
17 7.5 Drying
7.6 Storage
7.7 Mounting
18 7.8 Installation and conditioning
8 Procedure
8.1 Uniaxial tension stress test (UTST)
19 8.2 Thermal stress restrained specimen test (TSRST)
8.3 Relaxation test (RT)
8.4 Tensile creep test (TCT)
20 8.5 Uniaxial cyclic tensile stress test (UCTST)
8.5.1 Test temperature and test frequency
8.5.2 Base stress
8.5.3 Peak stress
21 9 Evaluation
9.1 Tension strength reserve
23 9.2 Uniaxial cyclic tensile stress test (UCTST)
24 10 Test report
10.1 General
10.2 General information
10.3 Information on specimen
10.4 Information on test method
10.5 Information on the test and results
10.5.1 Uniaxial tension stress test (UTST)
25 10.5.2 Thermal stress restrained specimen test (TSRST)
10.5.3 Tension strength reserve
10.5.4 Relaxation test (RT)
10.5.5 Tensile creep test (TCT)
10.5.6 Uniaxial cyclic tensile stress test (UCTST)
26 11 Precision

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BS EN 12697-46:2020
$142.49