Roadsurface material strength tester

A pavement material and tester technology, which is applied in the direction of testing material hardness, material inspection products, and basic structure tests, can solve the problems of difficulty in manual reading, low equipment utilization, and low detection accuracy, and achieves convenient installation and use. Work efficiency and stability are improved, and the effect of improving work efficiency

Inactive Publication Date: 2006-08-02
SHANDONG LUDA TEST INSTR
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Problems solved by technology

[0002] Pavement material strength tester is mainly used in testing items such as bearing ratio (CBR), rebound modulus and unconfined compressive strength of pavement material, in the prior art, its force-measuring device of known pavement material strength tester and The displacement measuring devices all use mechanical force measuring rings and dial indicators, which require manual reading of the readings of the dial indicators before statistical analysis. Manual readings are not only difficult to read, but also often lead to human errors. The detection accuracy is low, and often only To detect a material, at the same time, it requires more labor, difficult operation and low utilization rate of equipment

Method used

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  • Roadsurface material strength tester
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Embodiment Construction

[0011] Such as figure 1 , figure 2 As shown, the material strength tester of this road has a frame 1, and the frame 1 is provided with a lifting plate 2, and the lifting plate 2 is driven by a transmission device to go up and down, and the top of the frame 1 is provided with a beam 3, which passes Column 4 is fixed on the frame 1.

[0012] 1. Doing the bearing ratio (CBR) test, such as figure 2 As shown, the pressure sensor 5 can be fixed on the beam 3, the lower part of the pressure sensor 5 is connected to the pressure-bearing support 6, and two displacement sensors 8 are placed on both sides of the pressure-bearing support 6 corresponding to the test piece 7. The pressure sensor 5 and the two displacement The sensors 8 are respectively connected to the microprocessor assembly 9 through data lines, and the microprocessor assembly may include an AD converter 91, a microprocessor 92, a display screen 93, a printing device 94, a keyboard 95, and the like. Put the test piec...

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Abstract

The present invention discloses a pavement material strength- testing instrument. It includes a machine frame; the lower portion of said machine frame is equipped with a lifting plate. Besides, it also includes a sensor component and a microprocessor component, the upper portion of said machine frame is equipped with a crossbeam for fixing sensor component, said sensor component is connected with microprocessor component, said microprocessor component is equipped with data output device. Said invention adopts pressure sensor to implement pressure measurement and displacement measurement.

Description

technical field [0001] The invention relates to a pavement material strength tester used in traffic, scientific research institutes and road, municipal and railway road construction projects. Background technique [0002] Pavement material strength tester is mainly used in testing items such as bearing ratio (CBR), rebound modulus and unconfined compressive strength of pavement material, in the prior art, its force-measuring device of known pavement material strength tester and The displacement measuring devices all use mechanical force measuring rings and dial indicators, which require manual reading of the readings of the dial indicators before statistical analysis. Manual readings are not only difficult to read, but also often lead to human errors. The detection accuracy is low, and often only To detect a material, at the same time, it requires a lot of labor, the operation is difficult, and the utilization rate of equipment is low. Contents of the invention [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/40G01N33/42E02D33/00
Inventor 张桂芝唐飞
Owner SHANDONG LUDA TEST INSTR
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