PDS Sika® ViscoCrete® GL 3165
PDS Sika® ViscoCrete® GL 3165
Product Data Sheet (PDS)
Sika® ViscoCrete® GL 3165 is ready to use high range water reducing admixture based on latest generation polycarboxylic ether polymer. It has been primarily developed for applications in the ready mixed and precast concrete industries where the highest durability and performance is required. CHEMISTRY & MECHANISM OF ACTION Conventional superplasticisers, such as those based on sulphonated melamine and naphthalene formaldehyde condensates, at the time of mixing, become absorbed onto the surface of the cement particles. This absorption takes place at a very early stage in the hydration process. The sulphonic groups of the polymer chains increase the negative charge on the surface of the cement particle and dispersion of the cement occurs by electrostatic repulsion. Sika® ViscoCrete® GL 3165 is differentiated from conventional superplasticisers in that it is based on a unique carboxylic ether polymer with long lateral chains. This greatly improves cement dispersion. At the start of the mixing process the same electrostatic dispersion occurs as described previously but the presence of the lateral chains, linked to the polymer backbone, generate a steric hindrance which stabilises the cement particles capacity to separate and disperse. This mechanism provides flowable concrete with greatly reduced water demand. Sika® ViscoCrete® GL 3165 is suitable for use in hot and tropical climatic conditions.
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Sika® ViscoCrete® GL 3165

(former MGlenium 3165)

HIGH RANGE WATER REDUCING ADMIXTURE BASED ON MODIFIED POLYCARBOXYLIC ETHER 

Sika® ViscoCrete® GL 3165 is ready to use high range water reducing admixture based on latest generation polycarboxylic ether polymer. It has been primarily developed for applications in the ready mixed and precast concrete industries where the highest durability and performance is required.
                                                                                        CHEMISTRY & MECHANISM OF ACTION
Conventional superplasticisers, such as those based on sulphonated melamine and naphthalene formaldehyde condensates, at the time of mixing, become absorbed onto the surface of the cement particles. This absorption takes place at a very early stage in the hydration process. The sulphonic groups of the polymer chains increase the negative charge on the surface of the cement particle and dispersion of the cement occurs by electrostatic repulsion. Sika® ViscoCrete® GL 3165 is differentiated from conventional superplasticisers in that it is based on a unique carboxylic ether polymer with long lateral chains. This greatly improves cement dispersion. At the start of the mixing process the same electrostatic dispersion occurs as described previously but the presence of the lateral chains, linked to the polymer backbone, generate a steric hindrance which stabilises the cement particles capacity to separate and disperse. This mechanism provides flowable concrete with greatly reduced water demand.  Sika® ViscoCrete® GL 3165 is suitable for use in hot and tropical climatic conditions.  

Sika® ViscoCrete® GL 3165 offers the following benefits:
  • Suitable for concrete mixes with low water cement ratio or high powder content.
  • High early compressive strength
  • It can be used for production of Self Compacting Concrete (SCC)
  • High quality durable concrete with lower permeability
  • Low risk of segregation
  • Improved density and surface finish
  • Improved water tightness
  • Does not contain chlorides or other steel corrosion promoting ingredients
     
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PDS Sika® ViscoCrete® GL 3165
PDS Sika® ViscoCrete® GL 3165
Product Data Sheet (PDS)
Sika® ViscoCrete® GL 3165 is ready to use high range water reducing admixture based on latest generation polycarboxylic ether polymer. It has been primarily developed for applications in the ready mixed and precast concrete industries where the highest durability and performance is required. CHEMISTRY & MECHANISM OF ACTION Conventional superplasticisers, such as those based on sulphonated melamine and naphthalene formaldehyde condensates, at the time of mixing, become absorbed onto the surface of the cement particles. This absorption takes place at a very early stage in the hydration process. The sulphonic groups of the polymer chains increase the negative charge on the surface of the cement particle and dispersion of the cement occurs by electrostatic repulsion. Sika® ViscoCrete® GL 3165 is differentiated from conventional superplasticisers in that it is based on a unique carboxylic ether polymer with long lateral chains. This greatly improves cement dispersion. At the start of the mixing process the same electrostatic dispersion occurs as described previously but the presence of the lateral chains, linked to the polymer backbone, generate a steric hindrance which stabilises the cement particles capacity to separate and disperse. This mechanism provides flowable concrete with greatly reduced water demand. Sika® ViscoCrete® GL 3165 is suitable for use in hot and tropical climatic conditions.
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Usage

The excellent dispersion properties of Sika® ViscoCrete® GL 31655 make it the ideal admixture for precast and ready-mix concrete where low water cement ratios are required. This property allows the production of very high early and high ultimate strength concrete with minimal voids and therefore optimum density. Due to the strength development characteristics, the elimination or reduction of steam curing in precast works may be  considered as an economical option.

Advantages

Sika® ViscoCrete® GL 3165 offers the following benefits:
  • Suitable for concrete mixes with low water cement ratio or high powder content.
  • High early compressive strength
  • It can be used for production of Self Compacting Concrete (SCC)
  • High quality durable concrete with lower permeability
  • Low risk of segregation
  • Improved density and surface finish
  • Improved water tightness
  • Does not contain chlorides or other steel corrosion promoting ingredients
     

Packaging

210 L drum, 1000 L flowbin or bulk supply in tanker

Colour

Colorless to pale yellow liquid

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

Sika® ViscoCrete® GL 3165 follows the requirements of ASTM C494; Type A&F and BS EN 934-2

 
Product Information

Composition

Aqueous solution of modified polycarboxylates, co-polymers

Shelf life

12 months from date of production if stored properly

Storage conditions

Store in undamaged, unopened, original sealed packaging in dry conditions
at temperatures between +5°C and +45°C. Protect from direct sunlight.
Mix well before using.

Density

~1.08 kg/l (+25°C)

Total chloride ion content

Nil                                                                                                         (BS EN 934-2)
Technical Information

Concreting guidance

The standard rules of good concreting practice for production and placing
must be observed when using Sika® ViscoCrete® GL 3165 in concrete.
Refer to relevant standards. Fresh concrete must be cured properly
especially at high temperatures in order to prevent plastic and drying shrinkage. Use Sika® Antisol® products as a curing agent or apply
wet hessian.

Application

Application Information

Compatibility

Sika® ViscoCrete® GL 3165 is suitable for mixes containing all types of cement and supplementary cementitious materials such as: Microsilica (Silica Fume), Fly Ash (PFA), GGBS (Ground Granulated Blast Furnace Slag) and the following Sika products:
▪ SikaPump®
▪ Sika® FerroGard®
▪ SikaFume®
▪ SikaFiber®
▪ Sika® Aer
▪ Sika® Stabilizer
▪ SikaControl®
We recommend to perform trial mixes to establish the required performance when combining Sika® ViscoCrete® GL 3165 with the above products or other admixtures. Please consult our Sika Technical Department for further assistance.

Dispensing

Sika® ViscoCrete® GL 3165 is a ready-to-use admixture to be added to the concrete as a separate component. Optimal result is obtained if Sika® ViscoCrete® GL 3165 is poured into the concrete mix right after the addition of the first 60 % to 70 % of the mixing water, i.e. when all solids are wetted. Avoid adding the admixture to the dry aggregates.
Consumption

Recommended dosage

0.5 to 2.0 L per 100 kg of total binder.

Trial mixes must be performed to establish the exact dosage rate based on required concrete perfomance.

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