ASTM D6927 PDF
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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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. Link to Active This link will always route to the current Active version of the standard. However, results with larger corrections should be used with caution. One source of error in testing field cores arises when the side of the core is not smooth or perpendicular to the core faces. During cooling they should be placed on a smooth,?
Various agencies have criteria for Marshall stability. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? NOTE 2—Temperature variation will affect test results. Different asphalts were also used.
For the purpose of mix design, Marshall stability and flow asttm results should consist of aastm average of a minimum of three specimens at each increment of binder content where the binder content varies in one-half percent increments over a range of binder content. The flow is measured as the deformation in units of 0. Reliable results depend on many factors; following the suggestions of Specification D or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.
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 aetm to to to to to to A 8. Such conditions can create stress concentrations in loading and low Marshall stability.
ASTM D6927 – 15
There is no ideal value but there are acceptable limits. The dial gauge of the flow meter should be able to measure accurately the total vertical moment upward. These points of frictional resistance shall be checked before tests. In both types of failure, the Marshall? Factors Affecting Selection of Highway Location. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
These alternate devices should be capable of indicating or displaying? The 50kN capacity and fully variable speed of 0. As shown in Fig.
asm This includes mixing efficiency and aging. The binder content range is generally selected on the basis of experience and historical testing data of the component materials, but may involve trial and error to include the desirable range of mix properties. Such conditions can create stress concentrations in loading and low Marshall stability.
The machine is fit with a precision strain gauge load cell and displacement transducer, both connected to the Digimax These devices must be designed to measure and record the same relative movement between the top of the atm post and the upper breaking head. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
These results are given in percent so that they apply to various levels r6927 Marshall stability and? Circulating water bath with cooler unit for Marshall. An important feature is provided by the processing unit that controls the speed in a closed-loop modeavoiding speed calibrations and tension fluctuation effects. Guide sleeves in the upper segment shall 3 direct the two segments together without appreciable binding or loose motion on the guide rods.
Marshall Stability Test Procedure – ASTM D – 06 Standard Test Method
Railway Gauges – Types of Railway Gauges. Machine is capable of reversing its moment downward also. Historical Version s – view previous versions of standard. The above test properties may also be weighted differently to reflect a particular mix design philosophy.
The quality of the results produced by this standard are dependent on the competence zstm the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. These include mixes with harsh, crushed aggregate and dense gradation, as well as awtm made with very stiff binders. In addition, Marshall stability and flow can be used to monitor the plant process of producing asphalt mixture. Soil – CBR loading presses: Marshall v6927 and flow may also be used to relatively evaluate different mixes and the effects of conditioning such as with water.
Subscribe v6927 our Newsletter. One test result is considered to be the average of tests on three specimens. Email The subscriber’s email address. The magnitude of Marshall Stability varies with aggregate type and grading and bitumen type, grade and amount.
Users of this standard are cautioned that compliance with Specification D alone does not completely assure reliable results. The firmware allows performance of transducer calibrations and setting of up to 10 test profiles, saving data onboard.