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Equipment for simulating dry-wet circulation and fresh water to sea water circulation

A dry-wet cycle, simulation device technology, used in measuring devices, instruments, scientific instruments, etc.

Inactive Publication Date: 2009-08-26
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no standard method that can simulate the corrosion environment of concrete in river and sea estuaries with both dry-wet cycle and fresh water-sea water cycle

Method used

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  • Equipment for simulating dry-wet circulation and fresh water to sea water circulation
  • Equipment for simulating dry-wet circulation and fresh water to sea water circulation
  • Equipment for simulating dry-wet circulation and fresh water to sea water circulation

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Embodiment 1: Stainless steel is used to make the ring 2. The diameter of the ring 2 can be determined according to the amount of samples to be tested each time. Generally, a ring 2 with a diameter of 1 meter can be placed at most 60 pieces of 4×4×16cm at a time. Rectangular sample 11. According to the number of test samples 11 that can be placed, use an equal number of stainless steel angle steel or stainless steel flat steel as the sample holder 9, one end of which is welded on the outer ring of the circle perpendicular to the circular surface, and the other end is suspended and fixed on the outer side of the circle of the ring 2. Rubber gear teeth; make the ring support 7, and the ring 2 is installed on the ring support 7 through the shaft, so that the ring 2 can freely rotate on the ring support 7, thereby forming a rotating frame.

[0020] Select the motor 6, which is generally two motors, and its power is determined according to the weight of the ring 2 and the sa...

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Abstract

The invention relates to a dry-wet cycle and fresh water-sea water cycle simulation device. It consists of a shower head, a water tank, a water tank bracket, a transmission system, a rotating frame and an erosion solution tank. The transmission gear of the transmission system is fixed on the motor shaft, and the controller is connected to the motor; the rotating frame is composed of a ring, a ring bracket and a sample holder. , the ring is fixed to one end of the ring bracket through a shaft, so that the ring can rotate freely on the ring bracket perpendicular to the horizontal plane; the tooth shape of the transmission gear matches the tooth shape on the outer ring of the ring; one side of the ring bracket is equipped with Erosion solution tank, the lower part of the ring is located in the erosion solution tank; one end of the sample holder is vertically fixed on the outer ring of the ring surface; the shower head is located above the ring, and the water tank is fixed on the water tank bracket below the shower head It rotates between the sink and the shower head. The invention can greatly improve the efficiency of research on the sulfate erosion resistance of cement and concrete, and is closer to actual engineering conditions than traditional methods.

Description

technical field [0001] The invention relates to a dry-wet cycle and fresh water-sea water cycle simulation device. Background technique [0002] At the estuaries of rivers and rivers in our country, many cross-river and sea-crossing projects are planned. Due to the effect of tides, seawater pours into rivers and rivers at high tide, submerging concrete structures below the tidal range, and making concrete withstand chloride salts and various sulfuric acids. Salt erosion; when the tide ebbs, the river and river water begin to erode the concrete, making it subject to fresh water erosion, while the concrete in the tidal range area is exposed to the air. Therefore, the concrete structures of these projects are in the corrosive environment of dry-wet cycle and fresh water-sea water cycle. [0003] Concrete in the marine environment is called marine concrete or marine concrete. Its main damage form is that Cl ions in the sea invade the concrete protective layer and cause corrosio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00G01N33/38
Inventor 朱洪波王培铭康明
Owner TONGJI UNIV
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