Superplasticiser EB 821-P
High Early Strength Concrete Superplasticiser
Conforms to BS 5075 Part 3 and ASTM C494
Types A and F

DESCRIPTION

Superplasticiser EB 821-P is a high quality chloride-free superplasticiser containing sodium naphthalene sulphonate polymer.

It is specifically formulated for the production of very high early and ultimate strength concrete, for example, precast concrete where early demoulding is essential for time and cost savings.

Superplasticiser EB 821-P can be dosed into ready-mixed concrete at site to improve its workability and flowabilty without causing bleeding and segregation; and hence enables the concrete to be placed and compacted even when it is heavily reinforced and to prevent honeycombing.

Superplasticiser EB 821-P may reduce the required mixing water by 20 to 25% while achieving very high early and ultimate strength concrete.

TYPICAL PROPERTIES

  • Produces very high early strength concrete which enables precast concrete units to be demoulded in 10-16 hours by reducing water-cement ratio.
  • Provides faster and easier placing and compacting
    of concrete around heavy reinforcements by improving workability at given water-cement ratio.
  • Enables the production of high density water-fight concrete, and at the same time gives better corrosion protection to the steel reinforcements.
  • Enables the production of fair faced concrete.

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Cementone Hardflor-NM Coloured

SPECIFYING

"Superplasticiser EB 821-P" should be specified by name and used as per application instructions below.

APPLICATION PROCEDURES

  1. Dose Superplasticiser EB 821-P together with gauging water at the batching plant at the recommended rate of between 800ml to 1700ml/100kg of cement, into the concrete mix.
  2. Superplasticiser EB 821-P Maybe dosed at site into the ready-mixed concrete truck.
  3. Mix thoroughly to acieve a homogenous mix.
  4. The optimum dosage of Superplasticiser EB 821-P should be determined by site trial.

           Note: Severe over-dosage results in the following:

  • Increases the normal initial setting time of the concrete;
  • Leads to excessive workability of the concrete;
    and
  • Increases air entrainment in the concrete.

However, the ultimate strength of the concrete will not be adversely affected as a result of over-dosage if the concrete is properly cured and formwork stripping is properly conducted.

PRODUCT DATA

Physical Appearance Dark brown liquid
Dry Material Content  40 1 % w/w.
Ash Content 8.0% w/w.
Relative Density  1.200.01.
Foam Stability No stable foam
Chloride Ion Content Less than 0.01% w/w
Dosage 800 to 1700 ml per 100 kg of cement
Pack Size 25 liltre and 210 titre drums
Storage Avoid extreme temperatures
Shelf Life One year if unopened
Flash Point Non-flammable

 

 

 


Unicorp Sendirian Berhad Lot 66, Beribi II Industrial Estate,
B.S.B. BE1118 P.O. Box 620, Bandar Seri Begawan BS8671,
Brunei Darussalam
Tel: 673-245 0450, 245 0500, 245 0998
Fax: 673-245 0999 E-mail: unicorp@brunet.bn or unicorpbrunei@brunet.bn
Copyright Unicorp Sendirian Berhad All Rights Reserved 2005

g: -.45pt"> Flash Point Non-flammable

 

 

 


Unicorp Sendirian Berhad Lot 66, Beribi II Industrial Estate,
B.S.B. BE1118 P.O. Box 620, Bandar Seri Begawan BS8671,
Brunei Darussalam
Tel: 673-245 0450, 245 0500, 245 0998
Fax: 673-245 0999 E-mail: unicorp@brunet.bn or unicorpbrunei@brunet.bn
Copyright Unicorp Sendirian Berhad All Rights Reserved 2005