Poly 77

GEO CHEMICAL POLY 77

High Range Water Reducer/High Super Plasticizer  Concrete Admixtures

High-performance permeability and improved workability, compaction problem. 

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Description

GEO CHEMICAL POLY 77 admixture are Super plasticizers formulated that are based on Polynafthalene Sulphonate. This product from selected polymers is specially designed to enable the water content of the concrete to perform more effectively with higher developed early strength, this effect can be used to high strengths, improve segregation and bleeding problems, compaction problems with, workability, to increase ultimate strengths or to facilitate a reduction in the cement content while sustaining mix properties.

POLY 77 gives a high slump increase with the same amount of water.

 

Application

Poly77 admixture is used in conditions such as:

# High-strength concrete.

# Low water-cement ratios.

#Improved cohesion allows for use in mass concrete pours and pilling.

# To produce high-quality concrete of improved durability and water tightness.

# In slab and foundation, precast, curtain walls, girders, and columns, in bridges, in architectural structures and in RCC concretes.

# To concrete elements with thin and dense reinforcements.

# To pre-cast concrete.

# To pre-stressed construction blocks.

# For applications where fast stripping is needed.

 

Advantage

# Improved workability without increasing water content. Reduce placing &compaction.

# High reduction in water without loss of workability.

# Improved early and long term strengths, cement saving without affecting strength.

# Gives smooth surface after leveling, reducing segregation& bleeding problem.

# It is more suitable to be used in reinforced concrete constructions, improved cohesion.

# Increases the resistance of the concrete against water and frost.

 

 Standards

# BS EN 934-2 Chart 3.1 and 3.2 : High Range Water Reducer/ Superpalasticizer Concrete Admixtures .

# BS EN 934-2 Chart 11.1 and 11.2 : Set Retarder /High Range Water Reducer/ superplasticizer Concrete Admixtures.

 

Package

Poly 77 is available in 200 liter barrel, 1000 liter bulks supply, tanker.

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Dosage

Poly 77 admixture are depending on performance expected from the concrete, it is between

(% 0.6 - 1.4) of the binding material (cement, micro silica, fly ash) amount.

If dosed over %1.4 in winter months, set retarding may be observed & increase workability with mixing cementitiouse material, in order to find optimum admixture dosage, it is recommended to make experimental and aggregate used.

When it is required, GEO CHEMICAL Construction Chemicals Technical Support Unit should be consulted.

 

Compatibility

Poly 77 admixture can be used with all type of Portland cement and cement replacement material, that is compatible with other GEO CHEMICAL admixtures used in the same concrete mix, if more than one type of admixture will be used in the concrete mix, they must be dispensed to the concrete separately.

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Cleaning 

Poly 77 admixture spillage should be collected by a suitable absorbent such as vermiculite and transferred by suitable container, and should not be allowed to enter sewers or open bodies of water, dispose of in accordance with local environmental regulations.

 

Technical Properties   

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Storing Condition

It is store in dry condition, Poly 77 series has minimum shelf life of 12 months from date of manufacture if stored properly in its original unopened packing.

If the additive is frosted under +5 c , it should be thawed by waiting at ambient temperature without using direct heating and mixed until it becomes homogeneous.

Compressed air should not be used during this operation.  

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Security Information

All technical information stated out in this product data sheet are based on laboratory experiments, Users can get physical, toxicological, geological information and recommendations related to carrying, storing and safe disposal of chemical products from (MSDS) Material Safety Data Sheet of product.

Poly 77 should not come into contact with skin and eyes, that is classified as hazardous material.

In case of contact with eyes wash immediately with plenty of water and seek medical advice promptly.

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Fire

Poly 77 is nonflammable.