Polycarboxylate Superplasticizer

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

Index  of   Water  Reducing  Agent

 

Item

lndex

Actual quality

Appearance

Light yellow transparent liquid

Density gcm3

110250015

11025

PH Value              68

7

Solid content 

501

50

Alkali content 

100

024

Chloride ion content 

0200

006

Sodium sulfate content 

1000

122

Cement paste fluidity mm

240

240