DEZOAIR 220
Foaming additive
Dezoair 220 is an air-entraining admixture that produces very stable air bubbles. These bubbles are firm, fine, and closely spaced.
Applications:
- Introducing controlled air in a wide range of concrete types:
- Normal mixing design
- Segregation-free
- Containing high-carbon ash
- Containing large amounts of fine materials
- Containing high alkaline cement
- Casting concrete in warm air
- Extended mixing time
Dezoair 220 is suitable for improving the properties of concrete mixes, ensuring proper air entrainment, and optimizing the performance of concrete in various conditions.
Scores:
Dezoair 220 is particularly beneficial for concretes that require a certain amount of air to be introduced and maintained due to existing issues. Optimal air bubble incorporation in concrete leads to the following quality improvements:
- Increased resistance to freeze-thaw cycles
- Reduced permeability and enhanced waterproofing properties
- Decreased segregation and bleeding
- Improved workability and ease of use
- Enhanced stability of introduced air bubbles
Dezoair 220 is compatible with all concrete mixes containing other additives such as water reducers, high-range water reducers, retarders, accelerators, and water repellents. It also enhances the air-entraining properties of Portland cement. Using Dezoair 220 in conjunction with other additives from the Technical and Specialized Concrete Clinic results in a suitable blend for producing high-quality normal and lightweight concrete.
Packaging:
Dezoair 220 is an air-entraining admixture for concrete that is available in 25-kilogram jars, 220-kilogram buckets, and large containers.
Attributes:
Specific Gravity: 0.986 to 1.036 grams per cubic centimeter
Color: Amber or light brown
Chloride Content: Less than 0.1%
Flash Point: Non-flammable
Freezing Point: -1 degree Celsius
Alkalinity: 7 to 8
Mixing Dezoair 220 with concrete according to the ASTM C-182 standard. The steps are as follows:
1. Allow the concrete mixture to rest for 3 minutes and then mix it for 2 minutes.
2. Mix the concrete gently for 13 minutes and then mix it for 2 minutes.
3. Stir the concrete and mix it for 2 minutes.
These steps ensure proper mixing of Dezoair 220 with the concrete mixture, which leads to the production of high-quality concrete with improved properties.
Function;
The ACI recommends adding multiple admixtures to the concrete mixture separately, either manually or using a distribution device, and not mixing them together before adding them to the concrete. For optimal performance of the air-entraining agent, it is best to add it to the moist fine aggregate. This ensures the best possible results when using multiple admixtures in concrete.
Consumption amounts:
There is no standard for the amount of air-entraining admixture required. The required amount of air-entraining admixture should be determined through specific tests. The factors affecting the required amount include temperature, cement, aggregate gradation, aggregate moisture content, sand-to-cement ratio, slump, transportation and placement methods, and the use of fine materials such as fly ash and micro-silica. The required amount of Dezoair 220 is dependent on the amount of air required in the specific working conditions. The amount of Dezoair 220 required for normal concrete is less than that required for other types of concrete that contain water-reducing or set-controlling additives. Tests have been conducted to add and maintain the desired amount of air in concrete by adding Dezoair 220. The mix designs used in these tests contain large amounts of fine aggregate, fly ash, cement with high specific gravity, and low slump, and are produced in low-speed mixers. The amount of Dezoair 220 required for each 100 kg of cement in these tests is between 60 and 200 ml, and the amount should be adjusted based on the test results. The amount of Dezoair 220 required for each project should be determined based on the specific conditions of the project, including the type of cement, aggregate, and admixtures used, as well as the ambient temperature and method of concrete transportation and placement.
Storage:
Dezoair 220 should be stored and used at a temperature above 2 degrees Celsius to prevent freezing. If the product freezes, it can be thawed and gently mixed until fully restored. Compressed air can be used for mixing. Proper conditions will ensure a useful life of 12 months for the product. Dezoair 220 does not contain any hazardous substances.
All products offered by the Iranian Concrete Clinic Technical and Specialized Company comply with international quality standards.
Dezoair 220 is used to introduce controlled air in a wide range of concrete types, including normal mixing design, segregation-free, high-carbon ash, and fine materials. It is available in 25-kilogram jars, 220-kilogram barrels, and large containers. Its specific gravity is between 0.986 and 1.036 grams per cubic centimeter, and its color is amber or light brown.
Safety tips :
The required amount of Dezoair 220 should be determined through specific tests, as it depends on the temperature, cement, aggregate gradation, aggregate moisture content, sand-cement ratio, slump, transportation and placement methods, and the use of fine materials such as fly ash and micro-silica.