Test Procedure of ASTM D – 06 Standard Test: The apparatus for the Marshall Stability test consists of the following: Specimen mould assembly comprising. ASTM DStandard Test Method for Marshall Stability and Flow of Bituminous Mixtures_建筑/土木_工程科技_专业资料。ASTM的沥青混合. Preparation of Marshall Specimens (from bituminous mixes). ASTM D PROCEDURE (continued) e. Specimens conditioned to specified temperature.
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This facilitates adequate space for placing test head system after one specimen has been tested. The activating pin of the gage shall slide inside the guide sleeve with minimal friction and the guide sleeve shall slide freely over the guide post see Fig.
However, results with larger corrections should be used with caution. Marshall compression tester A bench mounted compression frame with motor and worm gear xstm within the base unit.
NOTE 1—A higher capacity ring dynamometer may be required for high-stability mixes.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
The lower segment shall be mounted on a base having two perpendicular guide rods or posts minimum Dense-graded mixtures will generally show a peak in stability within the range of binder contents tested.
ASTM D – 06 Standard Test Method for Marshall Stability and Flow of Bituminous Mixtures
Various agencies have criteria for Marshall stability. Precision Correlation Ratio 5. The large acceptable range of two test results between-laboratories indicates that this test should not be used for material acceptance programs that compare between-laboratory results.
One source of error in testing? These points of frictional resistance shall be checked before tests. Marshall stability and flow may also be used to relatively evaluate different mixes and the effects of conditioning such as with water.
Follow us YouTube LinkedIn. The tank shall have a perforated false bottom or be equipped with a shelf for supporting specimens 50 mm 2 atsm.
In addition, a mixture design may be required to meet minimum voids in the mineral aggregate based on nominal maximum aggregate size in the mixture. Bring specimens prepared with asphalt cement, tar, or tar-rubber to the speci? In both types of failure, the Marshall? Correction ast correlation ratios are given in Table 1.
ASTM D – 15 Standard Test Method for Marshall Stability and Flow of Asphalt Mixtures
The ring dynamometer astk be attached to the testing frame see ring holding bar, Fig. The machine is fit with a precision strain gauge load cell and displacement transducer, both connected to the Digimax No external transducer is required for displacement measurement.
B Volume-thickness relationship is based on a specimen diameter of 4 in. In addition, a mixture design may be required to meet minimum voids in the mineral aggregate based on nominal maximum aggregate size in the mixture. D — 05 TABLE 1 Stability Correlation FactorsA Volume of Specimen, cm3B to to to to to to to to to to to to to to to to to to to to to to to to to to to to to to to to to A 8. The machine d69227 supplied complete with load ring, 30 kN cap. NOTE 2—Temperature variation will affect test results.
The Marshall Test can be conducted with two different types of equipment: If a water bath is used, wipe excess water from the inside of the testing head segments.
ASTM D6927 – 15
As shown in Fig. Stay informed – subscribe to our newsletter.
Current edition approved June 1, These results are given in percent so that they apply to various levels of Marshall asgm and? The 50kN capacity and fully variable speed of 0. Last previous edition approved in as D — Flexible Pavement Definition and Explanation. Standard Test Method f Such conditions can create stress concentrations in loading and low Marshall stability.