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.
|Published (Last):||9 June 2011|
|PDF File Size:||15.8 Mb|
|ePub File Size:||19.78 Mb|
|Price:||Free* [*Free Regsitration Required]|
All the accessories have to be ordered separately. Motor, worm gear system and Utouch Pro Control Unit are housed within the base unit. The point that this line crosses displacement axis is commented as an offset. Each test requires a list of accessories depending on the type of f1559 and on the reference standard.
The highest possible Marshall stability values in the mix should be aimed at consistent with the other four requirements mentioned above.
Automatic Marshall Stability Test Machine – Marshall Stability – Utest Material Testing Equipment
At least three samples are prepared for each binder content. Marshall compression tester A bench mounted compression frame with motor and worm gear housed within the base unit. All moving marshqll are protected with safety guard, which stop automatically the compactor when opened and the control panel is fit with an emergency stop red When the test is completed, the sharpest slope of the graph is calculated.
Three specimens should be prepared at each trial bitumen content, which may be varied at 0. Furthermore, c1559 test stroke can be set at the beginning of the test with automatic stop, avoiding to overload the machine and the specimen, thus assuring the operator safety.
The main advantage of this machine is its high flexibility as a general purpose testing system, ensured by its generous dimensions which allow the placement of an The display also show the travel direction of lower platen.
The software accepts specimen diameter and height as an input parameter.
Automatic Marshall Stability Test Machine
Digital thermoregulator and temperature display, internal and external outer case in stainless steel. The front panel is also fitted with an emergency button and two operating led: Home Products Search results Results for: The three parts of the compaction moulds can be purchased individually.
The compacted specimen should have a thickness of Test reports can be instantly printed using an optional thermal printer. The original Marshall method is applicable only to hot-mix asphalt paving mixtures containing aggregates with maximum sizes of 25mm or less.
U-Touch PRO can export, copy, f1559 delete the test data saved in its internal memory.
The loading machine produces a movement marshxll the rate of 50mm per minute. The compaction temperature may be 0 to 0 C.
Marshall Stability and Flow values: The software continously updates load and displacement until the end of test. General lab – Water baths: The madshall baths are available in three different dimensions: It automatically calculates correction factor coming from the standards with respect to specimen thickness.
The sharpest slope is shifted 1. Two compaction hammers are recommended. Soil – CBR loading presses: The report includes all results for 9 samples. Linear Potentiometric Displacement Transducer, 25×0. For safety, up and down travel of the lower platen is marshalp by limit switches mounted on the gear system. A real-time test graph and transducer data are displayed on the touchscreen.
The machine is fit with a precision strain gauge load cell and displacement transducer, both connected to the Digimax It is generally to prepare a trial specimen prior to preparing the aggregate batches. Correction Factors for Modified Marshall.
Utouch Pro enables the users to display current memory usage and test results with its advanced data and memory management interface. U-Touch Pro TFT can simultaneously display machine status, test values, warnings during operation and test graphs in real time. The coarse aggregates, fine aggregates and the filler material should be proportioned and mixed in such mrshall way that final mix after blending has the gradation with in the specified range.
All the design values of Marshall stability, flow, voids and VFB are checked aastm the Optimum Bitumen Content, with the specified design requirements of the mix. Universal load frames accessories for soil, asphalt, concrete, cement, mortar and rock testings.