Dry-Wet Cycle Simulation Device for Concrete Tidal Zone Testing
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Solution Overview
Problem
Existing methods for simulating dry-wet cycle tests of concrete in marine environments fail to accurately replicate the combined effects of tidal and splash zones, leading to incomplete simulation of chloride ion ingress and erosion.
Innovation Solution
A device and method that integrates a liquid storage tank and test chamber with a communicating pipeline, air holes, exhaust, and spraying systems, along with a control box for automated control of water levels, temperature, and humidity, to simulate the dry-wet cycles in both tidal and splash zones, using a three-layer support frame to differentiate between the two zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual operation methods are used to simulate dry-wet cycle tests, then device complexity is reduced, but productivity and measurement precision deteriorate due to incomplete simulation of tidal and splash zones
Solution Approach 1:
The test chamber is divided into three distinct layers: tidal zone layer, transition zone layer, and splash zone layer. Each layer has specific functions and is equipped with dedicated components (spray nozzles for splash zone, water level control for tidal zone). This segmentation enables simultaneous simulation of multiple marine environments, improving productivity and measurement precision while maintaining manageable device complexity through modular design.
Solution Approach 2:
The automated control system integrates multiple functions into a single control box that manages water level control, spray system operation, exhaust control, and data acquisition across all three zones. The liquid storage tank serves both as water source for spraying and as part of the tidal zone simulation. This multi-functionality improves productivity by automating the test process while the standardized design maintains ease of operation.
2Productivity
If automated control systems are implemented to simulate dry-wet cycles, then productivity and measurement precision improve, but device complexity increases
Solution Approach 1:
The control box integrates water level control, spray system control, exhaust control, and data acquisition systems into a single automated unit. The liquid storage tank is merged with the test chamber through a communicating pipeline, allowing automatic water level regulation. This merging reduces the number of separate control systems needed, improving productivity through automation while managing device complexity through integration.
Solution Approach 2:
The water level control system automatically maintains the liquid level in the tidal zone layer through the communicating pipeline connection with the liquid storage tank. The spray system automatically activates when liquid level reaches the spray head, and the exhaust system automatically operates during drying phases. This self-service capability improves productivity through automation while reducing the complexity of manual intervention systems.
3Measurement precision
If a three-layer support frame is used to differentiate tidal and splash zones, then measurement precision improves, but device complexity increases
Solution Approach 1:
The support frame is divided into three distinct layers positioned at specific heights: tidal zone layer at the bottom, transition zone layer in the middle, and splash zone layer at the top. Each layer is equipped with specific sensors and components to measure and control the unique environmental conditions of that zone. This segmentation enables precise measurement of chloride ion ingress, moisture content, and temperature in each zone while maintaining a relatively simple overall structure.
Solution Approach 2:
The three-layer support frame utilizes the vertical dimension to differentiate between tidal and splash zones. By positioning concrete specimens at different heights, the system creates distinct micro-environments that replicate real marine exposure conditions. This vertical dimensionality approach improves measurement precision by capturing zone-specific effects while avoiding the complexity of multiple separate test chambers.
4Measurement precision
If integrated simulation of tidal and splash zones is implemented, then measurement precision and reliability improve, but device complexity increases
Solution Approach 1:
The test chamber is segmented into three functional layers with dedicated sensors and control components for each zone. Water level sensors, temperature sensors, and humidity sensors are positioned at specific locations to monitor conditions in the tidal zone, transition zone, and splash zone separately. This segmentation enables precise measurement of zone-specific parameters while the integrated control system manages the overall complexity through coordinated operation of all components.
Solution Approach 2:
The transition zone layer acts as an intermediary between the tidal zone and splash zone, facilitating the gradual transition of environmental conditions. The communicating pipeline serves as an intermediary mechanism for water level control, automatically balancing liquid levels between the storage tank and test chamber. These intermediary elements improve measurement precision by capturing gradient effects while simplifying the control of complex multi-zone environments.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a more accurate and automated simulation of marine environments, improving the simulation of chloride ion ingress and reducing manual labor and resource requirements, while clearly delineating the tidal and splash zones for enhanced testing accuracy.
Implementation Method 1
a spraying device is arranged in an upper portion inside the test chamber... The spraying device is communicated with the inside of the liquid storage tank through a pipeline
Implementation Method 2
an exhaust device... is arranged in an upper portion inside the test chamber... water vapor is discharged through air holes of the test chamber, and drying the concrete samples
Data Source
AI summary
The disclosure relates to a device and method for a dry-wet cycle simulation test of concrete in a tidal zone and a splash zone. A main structure includes a liquid storage tank, a test chamber, a communicating pipe, air holes of the liquid storage tank, air holes of the test chamber, ceiling fans, steel pipes, a support frame, an upper water level sensor, a lower water level sensor, a temperature and humidity sensor, a temperature sensor, a chamber body support, a communication valve, a pipe support, a water inlet pump, a water inlet valve, a water outlet pipe, a water outlet pump, a water outlet valve, spray water pipes, spray heads, and a control box. The control box can control and record test parameters in real time, so that the boundary between the tidal zone and the splash zone is clear.