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  • ASTM D6931-12

ASTM D6931-12

Standard Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures

ASTM International, 02/01/2012

Publisher: ASTM

File Format: PDF

$30.00$60.00


Published:01/02/2012

Pages:5

File Size:1 file , 200 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

1.1 This test method covers procedures for preparing and testing laboratory-fabricated or field-recovered cores of bituminous mixtures to determine the Indirect Tensile (IDT) Strength.

1.2 The within-laboratory repeatability standard deviation, for the recommended rate of loading (50 mm/min) and test temperature (25ºC), has been determined to be 80 kPa for 101.6 mm diameter specimens, based on 28 labs using either 2 or 4 test replicates with 11 different mix samples. Additional data is provided in Table 1 for the user's information. The between-laboratory reproducibility of this test method is being determined and will be available on or before August 2012. Therefore, this test method should not be used for acceptance or rejection of materials for purchasing purposes.

1.3 The values stated in SI units are to be regarded as standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Source of Data Number
of
Replicates		 Specimen
Diameter
(mm)		 Loading
Rate
(mm/min)		 Test
Temperature
(°C)		 Average
Strength
(kPa)		 Standard
Deviation
Strength
(kPa)		 d2s
(2.83×SE)
(kPa)		 Standard
Deviation
Strength
(% mean)		 d2s
(2.83×SE)
(% mean)
Anderson and
McGennisA		 3 150 12.5 -10 2870 200 566 7.0 19.8
N CHRP
Report 530B		 3 150 12.5 -10 - - - 9 22-32
(4 aggregate types;
4 binders)		 2 150 12.5 -10 - - - 11
(nom max size:
9.5 mm to 25 mm)
Solaimanian and
KennedyC-dry		 4 100 50 25 - 103 292 - -

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