Star N 550
GEO CHEMICAL - STAR N 550
High Range Water Reducer/ Super Plasticizer Concrete Admixtures
High performance permeability and Anti freeze (Accelerator) admixture
Description
GEO CHEMICAL STAR N 550 admixture are Super plasticizers formulated that are based on Polynafthalene Sulphonate This product from selected polymers specially designed to enable the water content of the concrete perform more effectively with higher developed early strength, 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.
STAR N 550 gives high slump increase with the same amount of water.
Application
Star N550 admixture is used in condition such as:
# High strength concrete.
# Low water cement ratios.
# 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 cold and warm weather.
# To pre stressed construction blocks.
# For application where fast stripping needed.
Advantage
# Improved workability without increase water content.
# High reduction in water without loss of workability.
# Improved early and long term strengths.
# Gives smooth surface after leveling.
# It is more suitable to be used in reinforced concrete constructions.
# 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 is available in 200 liter barrel, 1000 liter bulks supply, tanker.
Dosage
Star N 550 admixture are depending on performance expected from the concrete, it is between
(% 0.9- 1.5) of the binding material (cement, micro silica, fly ash) amount.
If dosed over % 1.5in 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.
Compatibility
Star N 550 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
Poly55 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
Storing Condition
It is store in dry condition, Star N 550series 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.
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.
Star N 550 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.
Fire
Star N 550 is nonflammabl