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Polycarboxylate superplasticizer powder

DD-901

[Description: ]

DD-901  is a high performance 100% polycarboxylate based polymer specifically developed as an effective dispersant fluidifier and high range water reducing agent for concrete and other mineral materials. It is mainly used as raw material to produce different types of high performance water reducers for targeted industrial.

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DD-901  is a high performance 100% polycarboxylate based polymer specifically developed as an effective dispersant fluidifier and high range water reducing agent for concrete and other mineral materials. It is mainly used as raw material to produce different types of high performance water reducers for targeted industrial. It complies with ASTMC 491
Type F specifications.

Technical Principle

The main chains of the high performance polycarboxylate water reducing agent molecular are absorbed onto the surface of the cement granulates which can efficiently hinder the hydration enhance its flowing retention ability the branch chains surrounded by the cement granulates play dual roles of steric hindrance and electrostatic repulsion it is totally different from the traditional water reducing agents which principal is dispersing cement granulates by electrostatic repulsion so the high performance polycarboxylate water reducing agents have better dispersion and water reducing effect which makes the comprehensive performance of the concrete products attain a qualitative leap.

Characteristics:

1.Wide adaptability: It is compatible with ordinary silicate cement slag silicate cement and all kinds of blendings having excellent dispersibility and plasticity.
2.High water reduction: The water reduction rate of concrete is above 38% improving concrete working characteristics increasing concrete strength  and durability.
3.Good slump retention ability: Guarantee concrete pumpability.
4.Good dispersibility: Making concrete have high fluidity.
5.Good cohesiveness: Making concrete have excellent workability non-segregative & non-bleeding..
6.Lower cost & NO harmful substances.

Methods of Use

The recommended mixing amount is 0.3-0.8%. The actual mixing amount depends on testing. The recommended stirring time is 150s at least. It can also compound with other concrete admixtures. It can be added directly or after preparing solution with water.

Scope of Application:

It is suitable for the preparation of dry mortar pumping high strength high durability self-compacting&precast concrete.

Safety Attention:

Keeping away from contacting skin and eyes. In case of contact immediately flush skin with plenty of water. In case of allergy and other adverse reaction seek immediate medical advice.

Package & Storage

Package : Packed in 20 or 25kg plastic woven bag.
Storage : Stored at dry and cool place at 0-35℃ away from sunshine.
Shelf life: Normally 1 year.
Inspection characteristics Standard value
Appearance White powder
Bulk Density[g/L 20℃³] ≥500
Cement paste fluidity[mm] ≥240
Air content[%] ≤6.0
Chloride Content[%] ≤0.10
Total Alkali Content[%] ≤10
Water Reducing of Mortar[%] ≥20
Slump loss retention[mm] 30min ≥180
60min ≥150

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