The alkaline components in concrete materials can react with 0.04% CO₂ concentration in the atmosphere under natural conditions, a process that is very slow. However, by employing techniques like pressurization and temperature increase, the carbonization of concrete can be rapidly achieved, resulting in higher strength.

Naird's high-pressure, high-concentration carbonization test kettle, under conditions of setting the test environment and adjusting CO₂ concentration, temperature, humidity, and pressure, provides a reliable testing environment for research institutions studying CO₂ carbon sequestration, carbonization preservation, and geological sequestration, as well as industrial production enterprises that quickly carbonize and preserve products.

This unit is primarily composed of a touch screen microcomputer control system, reactor vessel, refrigeration system, heating system, and humidification system. The microcomputer touch screen controls temperature, humidity, and CO₂ concentration, and allows for adjustable test duration settings. It boasts excellent control, display, recording, and protective functions.

The inner liner of the test chamber is made of 304 stainless steel sheet, the refrigeration system uses an imported fully enclosed compressor, temperature measurement is achieved with a high-precision Pt100 sensor, humidity measurement is conducted with an imported high-precision humidity sensor, and the circulating air system features a high-quality, high-temperature-resistant circulating fan to ensure uniformity of temperature, humidity, and CO₂. The entire carbonization test process is fully automated. In case of a fault, an audible and visual alarm will be triggered, and corresponding safety protection will be activated automatically.