Polydos EG 455

High-Performance Hyperplasticizer Concrete Admixture

Standard
Ministry of Public Works Specification No: 04.613/1-A3
TS EN 934-2 Tables 3.1 and 3.2: High-range water reducing / superplasticizer concrete admixture

Description
Polydos® EG 455 is a new-generation, high-performance hyperplasticizer concrete admixture based on modified polycarboxylate, developed for the ready-mix concrete industry. It significantly reduces the mixing water, enhances strength and durability, and provides excellent flowability and self-compacting properties even at low water/cement ratios. It is also effective in maintaining concrete consistency and preventing slump loss.

Areas of Use

• In the production of ultra-high-performance concrete

• In concrete requiring excellent flowability and long-lasting workability

• In heavily reinforced or congested concrete structures that are difficult to place

• In concrete needing high water reduction and extended workability

• In applications where early formwork removal or fast load application is required

• In concrete requiring plastic consistency and fluidity

• In both pumped and non-pumped ready-mix concrete production

• In the production of Self-Compacting Concrete (SCC)

Features / Advantages

• Ensures significantly high early strength development

• Provides high water reduction (25–35%) in concrete mixtures that require it

• Prevents rapid slump loss of concrete

• Ensures long-term workability retention

• Imparts self-compacting properties to concrete

• Provides high unit weight and strength potential

• Results in low-void, smooth-surfaced, and low-permeability concrete

• Reduces curing time and temperature in precast production, providing energy savings

• Eliminates the risk of segregation

• Reduces the rate of carbonation, and improves shrinkage and creep behavior

• Enhances freeze-thaw resistance of concrete

• Enables concrete pumping over long distances

• Eliminates the need for vibration, reducing noise pollution on site

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 admixture dosage may vary depending on aggregate properties, concrete class, water/cement ratio, water quality, and ambient temperature. Therefore, trial mixes in the laboratory are strongly recommended.
During consistency adjustments, the admixture’s high water-reducing effect must be considered, and excess water should not be added to the mix.

Technical Specifications