Product Description
Polycarboxylate superplasticizer is a new generation of polycarboxylic acid series highperformance water reducing agent formed by free radical polymerization of polyoxyethylene ether macromers unsaturated acids and sulfonic acid monomers The product has a high water reduction rate and low slump loss performance ensuring excellent workability high strength and excellent durability of concrete It can be widely used in pumped concrete ultra fluid self compacting highstrength highperformance concrete and commercial concrete
Technical Principles
After adding a water reducing agent to concrete the hydrophobic group of the water reducing agent is directional adsorbed on the surface of cement particles while the hydrophilic group points to the aqueous solution forming a singlemolecule or multimolecule layer adsorption membrane Due to the directional adsorption of surfactant the surface of cement particles carries the same sign of charge Therefore under the action of isotropic repulsion not only can the cement water system be in a relatively stable suspended state but also the flocculent structure formed in the early stage of water addition can be dispersed and disintegrated thereby releasing the water within the flocculent structure and achieving the goal of reducing water content
Product Characteristics
Outstanding comprehensive performance The product has a high water reduction rate up to 35water reduction rate and a low slump loss rate which can effectively improve the working performance of concrete enhance its strength and durability
Good workability of concrete Fresh concrete has good workability no segregation no bleeding good cohesion moderate air content and is suitable for pumping
Concrete has high hardening and durability performance
Concrete has high strength at all ages good volume stability outstanding impermeability freezethaw resistance corrosion resistance and carbonation resistance
Wide adaptability It has wide adaptability to Portland cement ordinary Portland cement slag silicate fly ash cement volcanic ash cement and various admixtures
Green and environmentally friendly The raw materials used are nontoxic and harmless and there are no three wastes generated during the production process
Usage Method
When using this product in practice it should be diluted and compounded with water as needed before use
The commonly used dosage is 0612 calculated based on the total amount of cementitious materials and the optimal dosage should be determined through experiments based on the engineering materials and characteristics
Water reducing agents can be dissolved in water or added separately to concrete mixers
It can be used in combination with lignosulfonate water reducing agents and various retarders
Our company provides a complete set of composite usage technology which can provide training for users If there are any difficult problems engineers can come to our doorstep for guidance
Applicable Scope
Suitable for preparing early strength concrete slow setting concrete Prefabricated concrete castinplace concrete high flow concrete self compacting concrete mass concrete highperformance concrete soil and plain concrete various industrial and civil buildings premixed and castinplace concrete especially suitable for lowgrade goods concrete
Widely used in highspeed railways nuclear power water conservancy and hydropower projects subways large bridges highways ports and docks national largescale and key projects
Suitable for various types of industrial and commercial construction and commercial concrete mixing stations
Packaging Storage
This product is liquid sealed in 200KG and 1000KG barrels During storage it is necessary to prevent leakage exposure to sunlight and high temperatures
The shelf life is two years and must be inspect and qualified before use
This product is an alkali free liquid nontoxic noncorrosive and non polluting to the environment but t is not edible
Uniformity Index of Water Reducing Agent
Density gcm3 110250015
PH Value 68
Solid content 501
Alkali content NA200658K20 100
Chloride ion content 0200
Sodium sulfate content 1000
Cement paste fluidity mm 240
Physical Mechanical Properties of Concrete
Water reduction rate 25
Bleeding rate ratio 60
Air content 60
Slump retention value mm
30 min 180
60 min 150
Compressive strength ratio
3d 160
7d 150
28d 140
Corrosion effect on steel bars No Corrosion
Shrinkage ratio 135
Relevant indicator basis GB80762008
Note The experimental dosage is 05
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