PASS 250

GEO CHEMICAL PASS 250

Water Reducer/ Plasticizer Concrete Admixtures

Based on polycarboxylic polymers for concrete with low water cement ratio    

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Description

GEO CHEMICAL PASS 250 admixture are sophisticated high end plasticizers formulated that are based on Polycarboxylate acidic, are considered superior to any other super plasticizers component. This product from selected polymers specially designed to enable the water content of the concrete perform more effectively with higher developed early strength with flow able concrete to achieve highest concrete durability, this effect can be used to improve workability, to increase ultimate strengths or to facilitate a reduction in the cement content while sustaining mix properties.

PASS 250 gives high slump increase with the same amount of water.

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Application

PASS 250 admixture is used in condition such as:

# High strength concrete.

# Produces concrete with high levels of workability without segregation.

# Has no chloride ions and non-corrosion to steel bar. 

# Low water cement ratios.

# Self compacting concrete.

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

# In slab and foundation, tunnel box, V funnel, 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.

# Improved cohesion allow for use in mass concrete pours and piling.

# For application where fast stripping needed.

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 Advantage

# Improves shrinkage and creep behaviors, optimizes cement utilization.

# High reduction in water without loss of workability, with flow concrete.

# Improved early and long term strengths.

# Less Bleeding and Separation.

# Gives smooth surface after leveling, self-leveling.

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

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

#High density and impermeable concrete.

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 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/ Super Plasticizer Concrete Admixtures.

# Type  G   

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Package

PASS 250 is available in 200 liter barrel, 1000 liter bulks supply, tanker.

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Dosage

PASS 250 admixture are depending on performance expected from the concrete, it is between

(% 1 – 2) of the binding material (cement, micro silica, fly ash) amount.

If dosed over % 2 in winter months, set retarding may be observed, 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.

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Compatibility

PASS 250 admixture 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.

 

Cleaning 

PASS 250 admixture can be washed with fresh cold water, and should not be allowed to enter sewers or open bodies of water.

                                                             

Technical Properties   

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Storing Condition

It is store in dry condition, PASS 250 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.

PASS 250 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

PASS 250 is nonflammable.