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Experimental device for simulating algae corrosion of hydraulic concrete and experimental method thereof

A technology of hydraulic concrete and experimental device, which is applied in the directions of measuring device, horticultural method, botanical equipment and method, etc., can solve the problem of lack of special experimental equipment for algal corrosion of hydraulic concrete, and achieve the effect of satisfying the growth and reproduction of algae

Pending Publication Date: 2022-03-01
TIANJIN CHENGJIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an experimental device and an experimental method for simulating algae corrosion of hydraulic concrete, and to solve the problem of lack of special experimental equipment for algae corrosion of hydraulic concrete in the prior art

Method used

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  • Experimental device for simulating algae corrosion of hydraulic concrete and experimental method thereof
  • Experimental device for simulating algae corrosion of hydraulic concrete and experimental method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] According to the test method of Enteromorpha spores on concrete in the marine environment, the specific steps are as follows: pull open the push-pull cover of the algae corrosion reactor, place the test piece at the cross mark at the bottom of the corrosion reactor, and prepare a sample with a salinity of 30-33‰ and a pH of 8 .0±1 seawater is put into the algae corrosion reactor. Turn on the thermostat to keep the temperature of the water body within 20°C±1°C, turn on the LED light tube, and keep the light intensity in the algae corrosion reactor at 50μmol / m 2 s, light time 14h, night time 10h.

[0037] Turn on the magnetic stirrer and take a density of 1.5×10 6The cell / ml algae spores were evenly placed in the water body of the algae corrosion reactor, the sliding cover and the magnetic stirrer of the corrosion reactor were closed and the air pump was turned on, and it was kept still for 24 hours in the dark. Turn on the frequency conversion wave generator, sensors a...

Embodiment 2

[0039] According to the test method of sporophytes released by mature Enteromorpha algae in marine environment on concrete, the specific steps are as follows. Pull open the push-pull cover of the algae corrosion reactor, place the test piece according to the cross mark at the bottom of the corrosion reactor, and put the prepared seawater with a salinity of 30-33‰ and a pH of 8.0±1 into the algae corrosion reactor. Turn on the thermostat to keep the temperature of the water body within 20°C±1°C.

[0040] Wash the mature Enteromorpha algae in sterile seawater, cut them into algae segments of about 1cm, dry them out for 24 hours in the dark, and put them into the algae corrosion reactor. Turn on the LED light tube so that the light intensity in the algae corrosion reactor is 150 μmol / m 2 s. When the algal body turns from green to brown, turn on the magnetic stirrer. When the algal body turns white, remove the algae segment. Turn off the magnetic stirrer, turn off the LED ligh...

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Abstract

The invention discloses an experimental device for simulating algal corrosion of hydraulic concrete and an experimental method thereof.The experimental device comprises a shell and a sealing push-and-pull cover, the shell forms an experimental device body, the top of the shell is partially open, the sealing push-and-pull cover covers the open part of the top of the shell, and a magnetic stirrer is arranged at the bottom of the outer side of the shell; a variable-frequency wave maker for simulating wind waves and tides on the water surface, a temperature controller, a luminosity detector and a water body quality controller are arranged on the inner side of the shell, an LED lamp tube for guaranteeing photosynthesis of algae is arranged on the upper portion of the side wall of the inner side of the shell, and a drainage pipeline with a stop valve is installed at the bottom of the shell and facilitates periodic replacement of new water bodies in an experiment. The top of the shell is provided with an air pump inlet which is provided with a sealing rubber pad and is used for supplying CO2 gas, and the outer side of the shell is provided with a sensor and an alarm which are used for water environment detection and early warning. The device not only can simulate water flow circulation in water to realize a real environment in which algae grow in flowing water circulation, but also can simulate stormy waves in water to realize an impact effect of the stormy waves on a real water surface on concrete.

Description

technical field [0001] The invention relates to an experiment of algae corrosion of hydraulic concrete, in particular to an experimental device and an experimental method for simulating algae corrosion of hydraulic concrete. Background technique [0002] In recent years, the design life of hydraulic concrete has been nearly a hundred years, but the environmental test faced by hydraulic concrete is more severe than pavement concrete, because hydraulic concrete not only has to resist physical and chemical damage, but also suffers from biological damage in water bodies, among which Hydraulic coagulation can act as an algae growth carrier, and the algae root system and growth and reproduction process are corrosive to concrete, which seriously reduces the service life of concrete. [0003] The macroscopic impact of algae on hydraulic concrete is visible to the naked eye. It not only affects the appearance of hydraulic concrete, but also penetrates into the interior of the concret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/00A01G33/00A01G7/045
Inventor 荣辉陈肖杰张颖刘德娥张磊冯阳
Owner TIANJIN CHENGJIAN UNIV
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