Polydos EG 450

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 450 is a high-performance, new-generation hyperplasticizer concrete admixture based on polycarboxylate, developed for the ready-mix concrete industry. It significantly reduces the mixing water, enhances strength and durability, and imparts excellent flowability and self-compacting properties to the concrete, even at low water/cement ratios. It is highly effective in maintaining concrete workability over time.

Areas of Use

• In the production of ultra-high-performance concrete

• In concrete requiring excellent flow and workability retention

• In heavily reinforced and hard-to-place concrete applications

• In concrete demanding high water reduction and extended workability

• In applications requiring early formwork removal or rapid load application

• In concrete needing plastic consistency and good flow

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

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

Features / Advantages

• Provides noticeably high early strength development

• Reduces mixing water significantly in concretes requiring 25–35% water reduction

• Prevents rapid slump loss of concrete

• Ensures long-term workability retention

• Provides self-compacting properties to concrete

• Allows for higher unit weight and strength

• Produces low-void, smooth-surfaced, and low-permeability concrete

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

• Eliminates the risk of segregation

• Decreases the rate of carbonation and improves mechanical properties such as shrinkage and creep

• Enhances freeze-thaw resistance of the concrete

• Facilitates pumping of concrete over long distances

• Eliminates the need for vibration, reducing noise pollution

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).
Dosage may vary depending on aggregate characteristics, concrete class, water/cement ratio, water quality, and ambient temperature. Therefore, trial mixes in the laboratory are strongly recommended.
During consistency adjustment, the admixture’s high water-reducing effect must be considered, and excessive water addition should be avoided.

Technical Specifications