Why Use
Superplasticizer
Superplasticizers (SPs) are also known as high- range water reducers that are additive used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow a 30% or more reduction in water content.
It is chemical admixtures that are added to the concrete to improve their flowing ability, they help to reduce the amount of water in the concrete and to improve the strength and durability of concretes.
They achieve a reduction in water content without loss of workability.
It is chemical admixtures that are added to the concrete to improve their flowing ability, they help to reduce the amount of water in the concrete and to improve the strength and durability of concretes.
They achieve a reduction in water content without loss of workability.
THE IMPORTANCE OF
Superplasticizer
Superplasticizers are additions that allow a given degree of workability to be obtained at a reduced water/cement ratio. The ratio may be reduced by up to 20% in the presence of, for example, sulphonated naphthalene formaldehyde condensate, which is absorbed at the solid/liquid interface. They have the effect of neutralizing the surface attractions between individual particles of the cement, causing them to form a less open structure, which therefore requires less water to fill spaces and provide fluidity to the paste. By decreasing the water/cement ratio in this way, superplasticizers act to increase the strength of the cement product.
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