In the field of material science and construction engineering, testing the durability of building materials is critical. One of the most significant factors affecting the lifespan of concrete and reinforced structures is carbonation. As researchers strive to develop eco-friendly, highly durable materials, the demand for precise environmental testing equipment has surged. However, not every laboratory has the space or budget for a massive walk-in climatic room.
Enter the Benchtop CO2 Chamber for Accelerated Carbonation of Building Materials. Designed specifically for smaller samples, this compact powerhouse delivers the exact same testing integrity as industrial-sized equipment, but in a fraction of the footprint. Essentially, this equipment builds upon the foundation of a standard temperature and humidity chamber by integrating an advanced CO2 gas control system.
| Equipment Model | WEW-BCO-ES-01 | WEW-BCO-ES-01Pro | WEW-BCO-ES-5e |
| Internal Dimensions (W×D×H) | 300 × 300 × 250 mm | 300 × 300 × 250 mm | 300 × 300 × 300 mm |
| Equipment Dimensions (W×D×H) | 450 × 720 × 795 mm | 450 × 720 × 795 mm | 450 × 720 × 1015 mm |
| The Output Mode | Pulse Solid State Relay ( PID + SSR ) | Pulse Solid State Relay ( PID + SSR ) | Pulse Solid State Relay ( PID + SSR ) |
| Temperature Range | 0℃ ~ +150℃ | -40℃ ~ +150℃ | -70℃ ~ +150℃ |
| Humidity Control Range | 20% ~ 95% RH | 30% ~ 98% RH | 50% ~ 95% RH |
| CO2 Concentration Control | 0% ~ 20%~98% | 20% ~ 98% | 0% ~ 20% |
| CO2 Sensor Device | Imported Photoelectric Sensor | Imported Photoelectric Sensor | Imported Photoelectric Sensor |
| Temperature Uniformity | 0.5℃ ~ 2℃ | 0.5℃ ~ 2℃ | 0.5℃ ~ 2℃ |
| Humidity Accuracy | ± 3% | ± 3% | ± 3% |
| CO2 Concentration Tolerance | ± 1% | ± 1% | ± 1% |
| Temperature Sensor | PT100Ω/MV | PT100Ω/MV | PT100Ω/MV |
| Heating System | Nickel-chromium Alloy Electric | Nickel-chromium Alloy Electric | Nickel-chromium Alloy Electric |
| Power Supply (AC) | AC 220V, 50Hz, 1 Phase | AC 230V, 60Hz, 1 Phase | AC 230V, 50Hz, 1 Phase |
| Equipment Weight | 85 kg | 95 kg | 105 kg |
How Does a Benchtop CO2 Climatic Chamber Work? At its core, an accelerated carbonation chamber simulates and accelerates the natural carbonation process that occurs over years or decades in the real world. By exposing building materials-such as concrete blocks, mortar, or novel cementitious composites-to elevated levels of carbon dioxide under strictly controlled temperature and humidity conditions, scientists can evaluate structural integrity and corrosion resistance in a matter of days.
| Because the tests require absolute consistency, our mini carbonation chamber precisely synchronizes three critical environmental variables: | Environmental Variables: |
| Ensuring the thermal environment mimics specific climates, critical for activating the chemical reactions. | Temperature Control: |
| Direct injection and monitoring of CO2 gas to maintain specific ppm or percentage levels throughout the testing cycle. | The CO2 Concentration: |
| Moisture is essential for the carbonation reaction to occur within the concrete pores. Without precise RH, testing data becomes invalid. | Humidity Regulation: |
Seeing is Believing: Intuitive CO2 Concentration Adjustment
We understand that in scientific research, absolute precision and verification are non-negotiable. “Seeing is believing”—which is why our chambers are equipped with a state-of-the-art Programmable Logic Controller (PLC) featuring a highly responsive, full-color touchscreen interface.
As demonstrated on the interface, users have complete and effortless control over the internal environment. You can easily adjust the target CO2 concentration setpoints, whether you are running a mild test at low percentages or a highly accelerated test approaching maximum saturation. The intelligent control system displays real-time operational data, historical curve tracking, and instant feedback from our imported Non-Dispersive Infrared (NDIR) sensors. This transparent, user-friendly interface guarantees that your testing parameters are not just theoretical promises, but verifiable realities accurately executed by the machine.
Explore Our Control System
High-Concentration Climatic Chamber for Heavy-Duty Testing
For laboratories and manufacturing facilities dealing with bulky, oversized, or incredibly heavy test specimens, our large-capacity Climatic Chamber with CO2 Control System is the ultimate industrial solution. This equipment is explicitly engineered for extreme accelerated carbonation testing, capable of maintaining high CO2 concentrations ranging from 20% up to 98% (or even 99% upon custom request).
Subjecting large concrete blocks or reinforced structural components to such highly saturated carbon dioxide environments allows researchers to force the carbonation chemical reaction in a fraction of the time it would take in nature. Built with a robust stainless-steel interior, reinforced shelving to bear immense weight, and a heavy-duty airflow circulation system, this chamber ensures that even the largest test materials are enveloped in a perfectly uniform temperature, humidity, and high-concentration CO2 environment, yielding rapid and actionable durability data.
View High-Concentration Chamber
Standard Accelerated Carbonation Chamber (Low Concentration)
While some testing protocols require extreme chemical acceleration, many international testing standards (such as EN, ISO, and ASTM guidelines) mandate a more gradual, precise simulation of natural atmospheric conditions. Our large-scale Accelerated Carbonation Chamber is expertly tailored for these exact requirements, focusing on the highly accurate maintenance of low CO2 concentrations, typically within the 0% to 20% range.
Perfect for large batches of concrete prisms, mortar samples, or novel cementitious composites, this chamber simulates the long-term, slow-acting environmental exposure that buildings face over decades. By maintaining strict control over lower CO2 thresholds combined with optimal relative humidity (usually 50% to 70% RH), this apparatus prevents the premature drying of samples and ensures that the carbonation depth measurements strictly reflect real-world weathering processes. It is the dependable workhorse for long-term quality assurance and fundamental material research.
Discover Low-Concentration ModelsWe understand that different testing protocols (such as EN, ASTM, or ISO standards) require different environmental parameters. As a direct manufacturer, we offer highly customizable configurations tailored to your laboratory’s actual testing needs. Our benchtop CO2 chambers feature broad adjustable ranges across all three primary metrics.
| Depending on whether you are conducting standard atmospheric testing or highly accelerated carbonation testing, we offer two distinct CO2 control modules: | 1. Precision CO2 Concentration Ranges |
| Low Concentration Testing (0% ~ 20% CO2): Ideal for simulating natural atmospheric conditions or mildly accelerated environments. This is often used for long-term observation of slow-reacting composites. | |
| High Concentration Testing (20% ~ 98% CO2): Perfect for extreme acceleration, rapidly forcing the carbonation process in dense building materials to yield quick, actionable data. | |
| We provide three distinct temperature range options to suit both standard curing and extreme thermal cycling tests: | 2. Versatile Temperature Options |
| Standard Range (0℃ to +150℃): General accelerated carbonation and mild curing simulations. | |
| Low Temperature (-40℃ to +150℃): Freeze-thaw cycles combined with carbonation tracking. | |
| Ultra-Low Temp (-70℃ to +150℃): Extreme environmental simulation for aerospace or specialized polar construction materials. | |
| The carbonation reaction in concrete typically peaks at specific humidity levels (usually between 50% and 70% RH). Our chambers allow you to dial in the exact moisture content required for your specific material: | 3. Flexible Relative Humidity (RH) Control |
| Standard RH Range: 20% to 95% RH | |
| Extended RH Range: 10% to 98% RH (recommended for ultra-dry materials or near-saturation environment testing). |
The benchtop CO2 chamber from Wewon Environmental Chambers Co., Ltd. perfectly bridges the gap between high-end environmental simulation and laboratory space constraints. By taking the robust engineering of a standard temperature and humidity chamber and integrating a highly accurate CO2 control system into a compact form factor, we offer a tailored, highly efficient solution for modern material research. Whether your lab requires low-concentration monitoring or extreme 98% CO2 testing environments, our factory-direct manufacturing capabilities ensure your specific testing parameters are flawlessly met.
| Question: | Can a benchtop CO2 chamber be used just for standard temperature and humidity testing? |
| Answer: | Yes. The CO2 injection and monitoring system can be turned off entirely via the control panel. When disabled, the equipment functions flawlessly as a high-precision, stand-alone climatic chamber for standard temperature and humidity cycling tests. |
| Question: | How is the CO2 concentration measured and maintained inside the chamber? |
| Answer: | Our chambers utilize advanced Non-Dispersive Infrared (NDIR) CO2 sensors. These robust sensors provide highly accurate, real-time feedback to the programmable logic controller (PLC), ensuring rapid injection and drift-free concentration management regardless of internal temperature or humidity fluctuations. |
| Question: | Is the benchtop chamber suitable for international building material testing standards? |
| Answer: | Absolutely. By customizing the specific temperature, humidity, and CO2 concentration levels, the chamber can easily meet the strict requirements of international standards such as BS EN 13295, ISO 1920-12, and various ASTM guidelines for the accelerated carbonation of concrete. |