POLYCARBOXYLIC ACID COPOLYMER

CONCRETE ADMIXTURE

PROPERTY
Chemical admixtures are water soluble ingredients (other than cement, water, and aggregate) added to concrete in small quantities before or during mixing to obtain some desired performance in the fresh and hardened state. They should improve workability of the fresh mixture and strength or durability of the hardened concrete. Chemical admixtures can be classified into five major categories depending on the effectiveness; superplasticizers, air-entraining, water-reducers, retarders, and accelerators. There are also other admixtures that have functions such as corrosion inhibition, shrinkage reduction, alkali-silica reaction inhibition, workability enhancement, damp proofing, and coloring. Mineral admixtures are hydraulic or pozzolanic supplementary fine powder materials to increase additional strength and durability of hardened concrete.
  • Superplasticizers
    • Sulphonated naphthalene formaldehyde polymer
    • Sulphonated melamine formaldehyde polymer
    • Lignosulfonates, modified
    • Polycarboxylates
  • Mineral admixtures
    • Blast-furnace slag
    • Fly ash
    • Condensed silica fume

Polycarboxylic copolymer, a water-soluble polymers made of olefin monomer, is a concrete admixtures to reduce the cost of construction and to improve the quality of concrete. They have a water reducing effect with non-setting retardation and low entraining in manufacturing of high strength concrete. They are used to increase slump, to reduce water content and to lower cement content.

WR GRADE

PROPERTY

UNIT

VALUE

APPEARANCE

 

Brownish oily liquid

ACTIVE CONTENT

%

40±1

WATER

%

Balance

pH

 

7 ± 1

Viscocity

cps

250 ± 50

SPECIFIC GRAVITY

 

1.13 ± 0.02 at 20 C

SR GRADE

PROPERTY

UNIT

VALUE

APPEARANCE

 

Brownish oily liquid

ACTIVE CONTENT

%

40±1

WATER

%

Balance

pH

 

7 ± 1

Viscocity

cps

200 ± 50

SPECIFIC GRAVITY

 

1.12 ± 0.02 at 20 C

 

SUPPLIERS

Korea

LG Chem Ltd
www.lgchem.com

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