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Road cement concrete flowing water washout tester and use method thereof

A technology for road cement and concrete specimens, applied in instruments, scientific instruments, measuring devices, etc., can solve problems such as restricting the research progress of road cement concrete resistance to dynamic water erosion, and achieve smooth water circulation, convenient use, and simple device structure. Effect

Inactive Publication Date: 2015-04-01
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, there is no test device for testing the water erosion resistance of road cement concrete pavement, which greatly restricts the research progress in the aspect of road cement concrete pavement resistance to dynamic water erosion

Method used

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  • Road cement concrete flowing water washout tester and use method thereof
  • Road cement concrete flowing water washout tester and use method thereof
  • Road cement concrete flowing water washout tester and use method thereof

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings. The height and diameter of the concrete test piece in the present invention are both 10cm.

[0030] see Figure 1-Figure 5 As shown, the present invention includes a motor 12, a speed regulator 13, an upper cover 11, and a base 1 provided with several water tanks. The base 1 is provided with a scourer 5, and the scourer 5 and the base 1 are connected by threads to flush The upper cover 11 is arranged on the top of the cylinder 5, and the upper cover 11 is fixed on the scour cylinder 5 by bolts 8; the concrete specimen 2 is placed on the inner bottom of the scour cylinder 5, and the scour plate assembly is arranged on the top of the concrete specimen 2; the output shaft of the motor 12 is The speed regulator 13 is connected with a piston 6, the piston 6 includes a pull rod and a pressure plate connected to the pull rod, the bottom surface of the pressure plate is provi...

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Abstract

The invention discloses a road cement concrete flowing water washout tester and a use method thereof. The road cement concrete flowing water washout tester comprises a motor, a speed adjuster and a base, wherein a washout cylinder is arranged on the base; a concrete test piece is arranged at the bottom inside the washout cylinder; a washout plate component is arranged on the top of the concrete test piece; the output shaft of the motor is connected with a piston through the speed adjuster; the piston comprises a pull rod and a pressure plate connected with the pull rod; the cavity between the washout plate component and the top of the washout cylinder is divided into a cavity A and a cavity B by the pressure plate; a flowing water circulation pipeline is arranged on one side of a washout bucket; the water inlet of the flowing water circulation pipeline is communicated with the cavity B; the water outlet of the flowing water circulation pipeline is communicated with the cavity A. Due to the hollow structure, the shapes of patterns of a tire can be actually simulated, so that the washout plate has the load effect on the concrete test piece, and the load effect of the tire to a pavement structure can be simulated. The road cement concrete flowing water washout tester is simple in structure, convenient to use, and capable of simulating the washout testing on the bottom and the top of a concrete pavement plate.

Description

technical field [0001] The invention relates to a test device, in particular to a road cement concrete dynamic water scour test device and a use method thereof. Background technique [0002] A large number of engineering practices have shown that many cement concrete pavement damages are caused by the erosion of pressurized water flow, and the insufficient anti-scouring performance of road materials is one of the important factors that accelerate pavement damage. The scouring of cement concrete pavement is a phenomenon of hydraulic scouring when vehicles traveling at high speed pass through the road surface covered by water film in rainy days or when there is water on the road surface. Dynamic water scouring mainly includes two types: bottom scouring and top scouring. Slab bottom scour is a unique phenomenon of cement concrete pavement. Since the cement concrete pavement is equipped with cutting joints, water flow is squeezed into the cutting joints and even the bottom of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
Inventor 申爱琴万晨光郭寅川薛翠真赵学颖樊莉
Owner CHANGAN UNIV
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