voids analysis and stability – flow test. Strength is measured in terms of the ‘ Marshall’s Stability’ of the mix following the specification ASTM D (), which. To design the Asphalt concrete mix using Marshall method. .. Max. Min. Max. Marshall specimens. (ASTM D ). No. of comp. Blows, each end of specimen. (ASTM – D – & MS-2) The original Marshall method is applicable only to hot-mix asphalt paving mixtures containing aggregates with.

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ASTM D, Test equipment Controls

With suitable accessories UTAS The load jack, DC motor and controls are housed in a specially designed base cabinet. The machine has built-in data acquisition with four channels dedicated to two strain gauge load cells and two potentiometric linear transducers; one of each can be used during the test.

Parameters such as test information, user information, sample information and test parameters can be modified and saved for later use by operators. The compacted specimen should have a thickness aztm Maintenance Spares Technical trainings Warranty Academy. Circulating water bath with cooler unit for Marshall. The specific gravity and apparent specific gravity values of the different aggregates, filler and bitumen used are determined first.

To determine the stability, flow, voids, voids in mineral aggregates, voids filled with asphalt and density of the asphalt mixture by Marshall stability test.

This will normally be about gm 2. Universal load frames accessories for soil, asphalt, concrete, cement, mortar and rock testings.

The load jack, DC motor and controls are housed in an ergonomic cabinet. Mould holder provided consisting of spring tension device designed to hold compaction mould centered in place on compaction pedestal. The bitumen is heated to temperature of 0 to 0 C and the required quantity of first trial percentage of bitumen say, 3.

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Marshall Stability and Flow values: Prior to the test, the operator can impose travel limits for automatically ending the mrashall. Follow us YouTube LinkedIn. Six graphs are plotted with values of bitumen content against the values of: Digital thermoregulator and temperature display, internal and d159 outer case in stainless steel. Three specimens should be prepared at each trial bitumen content, which may be varied at 0. An important feature is provided by the processing unit that controls the speed in a closed-loop modeavoiding speed calibrations and tension fluctuation effects.

The software supports SI, Imperial and kgf unit system. Iva Company info Privacy policy Each test requires a list of accessories depending on the type of test and on the reference standard. Bruce Marshall, a former Bituminous Engineer with the Mississippi State Highway Department, formulated the concepts of the Marshall method of designing aastm mixtures. In case the mix designed does not fulfill any one or more of the design requirements, the gradation of the aggregates or filler content or bitumen content or combination of these are altered and the design tests are repeated till all the requirements are simultaneously fulfilled.

Automatic Marshall Stability Test Machine – Marshall Stability – Utest Material Testing Equipment

Automatic Marshall Stability Test Machine. Test reports can be instantly printed using an optional thermal printer.

The front panel is fitted with an emergency button for prompt stopping of the machine. Preparation of test specimens: In the Marshall method each compacted test specimen is subjected to the following tests and analysis in the order listed below: The loading machine produces a movement at the rate of 50mm per minute.


The EN covering the Determination of the indirect tensile strength of bituminous mixtures, prescribe a water U-Touch PRO incorporates a user-friendly interface that shows all existing menu options as buttons and tabs.

The aggregate size more than 25mm use the Modified Marshall method. U-Touch PRO can export, copy, or delete the test data saved in its internal memory. All the design values of Marshall stability, flow, voids and VFB are checked at the Optimum Bitumen Content, with the specified design requirements of the mix. Then the Optimum Bitumen Content is given by: This method covers the measurement of the resistance to plastic flow of cylindrical specimens of bituminous paving mixture loaded on the lateral surface by means of the Marshall apparatus.

Automatic Marshall Stability Test Machine

The front panel is also fitted with an emergency button and two operating led: A real-time test graph and transducer data are displayed marshalp the touchscreen. Determination of Optimum Bitumen Content: The proportions in which the different aggregates, filler and bitumen are to be mixed are specified by weight or by volume for implementation during construction. Home Products Search results Results for: Rapid adjustment of the platen can be done by using the up and down buttons located on the front panel.

The pedestal should be installed on concrete slab so that the post is plumb and the cap is level.

When the test is completed, the sharpest slope of the graph is calculated.