To keep the right humidity and temperature in the early stages of cement production, a device called a concrete curing cabinet (cement curing time) is used. It is used so that the strength of the cement increases as the hydration of the cement is completed. Within a set period of time this device protects the cement's temperature and supplies the moisture it has lost. The device is used in cement and concrete production plants and in university and research centers. In this article we look at the concrete curing cabinet.
1Features of the concrete curing cabinet
The device is built in different sizes, with different auxiliary equipment and features, according to customers' orders. Its sizes include 200 liters and 500 liters. The features of this product include the following:
- It has the fastest and newest microprocessor.
- It has an accurate, intelligent digital control system and controls time, humidity and temperature.
- It is designed and built with varied capabilities.
- It is used in cement production plants and in concrete, asphalt and soil mechanics laboratories.
- All standards and legal requirements are observed in its design and production.
2Technical specifications of the concrete curing cabinet
The technical specifications of the concrete curing cabinet are internal shelving, insulation around the chamber, door insulation (silicone), standard elements and refrigeration system, lockable wheels for moving it, an inner body of rust-proof stainless steel, a body of iron profile with electrostatic paint, an indirect cooling system, circulation fans (2), the fastest microprocessor, an accurate, intelligent digital and touch control system, and the ability to control time, humidity and temperature.
3Size and general specifications of the concrete curing cabinet
As said before, the material of the frame, the inner chamber and the outer body of this device is as follows:
- Iron profile with electrostatic paint coating
- Rust-proof stainless steel
- Iron sheet with electrostatic paint coating
The device has a door with an inspection window and is built with fittings, hinges and double-glazed glass. It has lockable wheels so that it can be moved easily in the laboratory. The heating system of the device is built with standard European elements. Its refrigeration system is built with a good-quality imported compressor. The area around the chamber of the device is insulated with foam made for refrigeration systems, and the area around the door is insulated with special silicone rubber. The internal shelving is made of steel profile in sizes and sections to suit.
4Auxiliary features and control system of the concrete curing cabinet
This product uses microprocessors made by major companies so that time, humidity and temperature are controlled accurately. For more uniform heat, the cooling system of the device has two circulation fans and is an indirect cooling system. Its temperature range is 4 to 45 degrees Celsius and its temperature tolerance is ± 0.3 degrees Celsius. The chamber volume of this product can differ according to the model; for example, volumes of 200 liters and 500 liters can be mentioned. The device is built with two shelves.
5Different sizes of the concrete curing cabinet
The device is built in sizes of 200 liters and 500 liters, and in other sizes to customer order, with technical features such as a data logger that records to internal memory and an SD card, a color touch screen, an alarm if the temperature deviates, and a cold-steam type humidifier system.
The usual tests that show a device of this kind works correctly are:
- IQ, or Installation Qualification
- Operation Qualification, or OQ
6For what reasons is the concrete curing cabinet used?
Developing the strength of the concrete, keeping the temperature of the concrete at the desired level for a set time, providing the moisture it has lost and preventing loss of moisture are among the aims that have led to the use of the concrete curing cabinet.
In cement plants, one of the most important jobs for controlling the quality of the cement is curing tests. For this reason the concrete curing cabinet is used, so that the strength of the cement increases and outside factors such as humidity and temperature do not reduce the quality and strength of the concrete and cement.
Closing words
To keep the strength of the cement against humidity and temperature, cement production plants use the concrete curing cabinet. This device controls time, humidity and temperature so that the strength of the cement increases. We have described all the specifications and technical features of this product to you in this article.
