Aydosper NBA 71

High Performance Superplasticizer Concrete Additive

Standard

Ministry of Public Works Poz No: 04.613/1-A3
EN 934-2 Table 3.1 and 3.2: High Water-Reducing / Superplasticizer Concrete Additive

Description

Aydosper® NBA 71 is a modified naphthalene sulfonate-based superplasticizer concrete additive that significantly increases concrete strength with a low water/cement ratio while enhancing workability. It significantly improves flowability without increasing water content and without the risk of segregation, providing high durability.

Applications

• Concrete requiring high final strength.

• Concrete where dense and smooth surfaces are desired.

• Concrete requiring high water reduction and long workability.

• Areas where early formwork removal or rapid loading is required.

• Foundations, slabs, beams, columns, and wall concrete.

• Concrete for bridges, viaducts, tunnels, airports, and dams.

• Concrete requiring impermeability.

• Precast and prefabricated concrete production.

Properties / Advantages

• Significantly increases early high strength development.

• Ensures normal setting time for concrete without any retardant effect.

• Provides high unit weight and strength.

• Allows for long-distance pumping of concrete.

• Reduces curing time and temperature for precast elements, offering energy savings.

• Improves concrete’s freeze-thaw resistance and mechanical properties such as shrinkage and creep.

• Reduces segregation and bleeding, enhancing wear resistance.

• Provides smoother and more aesthetically pleasing concrete surfaces.

• Ensures easy placement and smooth surfaces for low water/cement ratio concrete applications without loss of workability.

Dosage

• It is recommended to use between 0.6 – 1.7 kg per 100 kg of binder (cement-microsilica-fly ash).
• The dosage may vary depending on aggregate properties, concrete class, water/cement ratio, water quality, and ambient temperature. Therefore, it is recommended to perform preliminary trial mixes in the laboratory to determine the correct dosage.

Technical Specifications