To increase the plasticity of concrete and improve its workability, various additives are added, such as plasticizers. These additives reduce the viscosity of the concrete mixture, making it more pliable and easy to form, while maintaining its strength and wear resistance. In this article, we will talk about some types of additives that can be used to improve the ductility of concrete.
Superplasticizers
Superplasticizers are one of the most common and effective additives for increasing the plasticity of concrete. Superplasticizers can significantly reduce the water-cement number (WCN) and improve the mobility of the mixture without loss of strength. They are often used in the construction of high strength and high density concrete structures.
Teknoflow Super, a naphthalenesulfonate-based material, is added at a ratio of 0.5-2% to the total weight of the concrete mix and provides excellent flowability without the need to add additional water.
Retarders
Retarders are added to concrete to slow down its curing rate. This allows for increased working time and concrete handling, which is especially useful when constructing large structures or in high temperature environments.
Plasticizing additives based on polyester resins
These additives increase the plasticity and workability of concrete, especially over a long period of time. They are often used in hot climates and to increase the resistance of concrete to various aggressive environments.
It is important to note that additives should be used in accordance with the manufacturer's recommendations and the dosage should be observed in order to achieve the desired effect without negatively affecting the strength and characteristics of the concrete.
