Thermal deformation tester for cement-emulsified asphalt mortar material

A thermal deformation tester, cement emulsified asphalt technology, applied in the direction of material thermal analysis, analysis materials, instruments, etc., can solve the problem that the thermal deformation performance of cement emulsified asphalt mortar is not suitable for testing, so as to reduce the accuracy requirements, ensure accuracy, The effect of guaranteeing accuracy

Inactive Publication Date: 2012-04-18
CENT SOUTH UNIV
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  • Description
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Problems solved by technology

[0004] In order to overcome the deficiency that the existing thermal expansion instruments are not suitable for testing the thermal deformation properties of cement emulsified asphalt mortar, the present invention provides a thermal deformation testing device for cement emulsified asphalt mortar that can accurately test the thermal deformation properties of large-sized and heterogeneous materials

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  • Thermal deformation tester for cement-emulsified asphalt mortar material
  • Thermal deformation tester for cement-emulsified asphalt mortar material
  • Thermal deformation tester for cement-emulsified asphalt mortar material

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and embodiment this patent is further described.

[0020] The cement emulsified asphalt mortar thermal deformation testing device provided by the present invention consists of a specimen support 5, a push rod 8, a fixed support 13 and a lifting device, a temperature chamber 12, a temperature sensor 10, a displacement sensor 6, a data acquisition module and a temperature controllable The external circulation system of high and low temperature tank is composed.

[0021] The test piece bracket 5 and the push rod 8 are made of quartz glass, and the push rod 8 passes through the top surface of the fixed support 13 to contact the test piece 9, and transmits the deformation of the test piece 9 to the displacement sensor 6. The fixed bracket 13 is suspended on the electric lifting slide bar, so that the fixed bracket 13 can vertically descend or rise out of the temperature chamber 12 . The displacement sensor 6 is fixed on the fix...

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Abstract

The invention discloses a thermal deformation tester capable of testing a large-size cement-emulsified asphalt mortar material. The tester comprises a fixed bracket, a liquid circulation temperature chamber and a displacement sensor are mounted on the fixed bracket, a heat preservation cavity of the liquid circulation temperature chamber is internally provided with a test piece, the test piece and the displacement sensor are connected through an ejector rod mounted on the fixed bracket, and the test piece is provided with a temperature sensor. Based on the characteristic that the cement-emulsified asphalt mortar is a heterogeneous material, the tester can test the large-size test piece, and can guarantee the accuracy and the representativeness of the test result. The large-size test piece bracket cooperates with the quartz glass ejector rods in different length, which facilitates further study on service behavior of the cement-emulsified asphalt mortar and cracking mechanism of a filled layer of a slab track structure.

Description

Technical field [0001] The patent of the present invention relates to a thermal deformation tester for cement emulsified asphalt mortar material. Background technique [0002] Cement emulsified asphalt mortar is the key engineering material used in the filling layer of slab track structure of high-speed railway. The cement emulsified asphalt mortar filling layer mainly plays the role of construction adjustment, support, buffer and coordination deformation. During the service process, the cement emulsified asphalt mortar filling layer is subjected to seasonal and daily temperature changes, so the thermal deformation behavior of the cement emulsified asphalt mortar directly affects the deformation coordination and supporting functions of the filling layer. [0003] At present, the furnace body of the existing thermal dilatometer adopts electric heating. In order to meet the requirements of fast temperature rise and fall and uniform temperature distribution of the test piece,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/00G01B21/32
Inventor 郑克仁谢友均周锡玲蔡锋良
Owner CENT SOUTH UNIV
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