Polydos SR 707

High-Performance Superplasticizer Concrete Admixture

Standard
Ministry of Public Works Specification No: 04.613/1-A3
TS EN 934-2 Tables 11.1 and 11.2: Set Retarder / High-Range Water Reducer / Superplasticizer Concrete Admixture

Description
Polydos® SR 707 is a new-generation, polycarboxylate-based high-performance superplasticizer admixture used in concrete production. It is designed for concrete that can easily flow into densely reinforced, narrow and deep sections, can self-compact without the need for internal or external vibration, and maintains cohesion without causing issues like segregation or bleeding, while offering excellent flowability and passing ability.

Areas of Use

• In ready-mixed concrete production that needs to be transported over long distances in hot climates
• In concrete requiring high water reduction and extended workability
• In reinforced concrete applications with dense and narrow reinforcement where placement is difficult
• In high-strength and high-quality concrete
• In concrete requiring smooth and dense surface finishes
• In foundations, slabs, beams, columns, and wall concretes
• In bridge, viaduct, tunnel, airport, and dam concretes
• In concrete where impermeability is required
• To compensate for workability loss caused by hot, windy, or humid weather conditions
• In the production of self-compacting concrete (SCC)

Features / Advantages

• Provides long-term slump retention
• Significantly enhances early and final strength development
• Greatly reduces the mixing water in concrete
• Imparts self-compacting properties to concrete
• Allows for higher unit weight and strength
• Results in low-void, good surface finish, and less permeable concrete
• Extends setting times in a controlled manner
• Enables pumping of concrete over long distances
• Ensures void-free and smooth surfaces
• Eliminates the need for vibration, preventing noise pollution
• Reduces the rate of carbonation and improves mechanical properties such as shrinkage and creep
• Improves impermeability thanks to the low water/cement ratio
• Maintains slump in summer conditions without the need for re-tempering

Dosage

• For flowable and self-compacting concretes, it is recommended to use between 0.4 – 2.0 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 determine the ideal dosage through preliminary laboratory trials.
• When adjusting consistency, the admixture’s strong water-reducing effect should be taken into account, and adding excess water should be avoided.

Technical Specifications