Product Data Sheet Show all documents

Sika® ViscoCrete® ACE 456

(former MasterGlenium® ACE 456)

Essential component of ZERO ENERGY SYSTEM – A new generation of high-performance polycarboxylate ether (PCE) superplasticizers for the Precast industry.

Sika® ViscoCrete® ACE 456 (Admixture
Controlled Energy) consists of a range of
innovative superplasticizers based on newly
developed polycarboxylate ether polymers. The
particular molecular configuration of
Sika® ViscoCrete® ACE 456 accelerates the
cement hydration by exposing increased
surface of the cement grains to react with
water. As a result, it is possible to obtain earlier
development of the heat of hydration, rapid
development of the hydration products and, as
a consequence, higher strengths at very early
age. The polymer structure of Sika® ViscoCrete® ACE 456 is specially designed to improve the
rheology of precast concrete, making it very
flowable and low viscous even at very low
water/cement ratios, without increasing
stickiness. Robustness is a distinctive feature
of the precast concrete produced with
Sika® ViscoCrete® ACE 456.

Sika® ViscoCrete® ACE 456 offer the following
benefits for the precast concrete industry:
  • Production of highly flowable, robust selfcompacting concrete having a low water cement ratio along with an optimal rheology.
  • Enhanced robustness and consistency in concrete quality with low stickiness.
  • Environmentally friendly, CO2 reduced mixdesign optimization.
  • Elimination of heat curing.
  • Improved surface appearance.
  • Durable precast concrete elements as per EN 206-1.
  • Elimination of the energy required for placing, compaction and curing.
  • Optimization of the curing cycles by reducing curing time or curing temperature.
  • Increased productivity.
Product Data Sheet Show all documents

Usage

Sika® ViscoCrete® ACE 456 is suitable for making precast concrete elements with highlyfluid concrete without segregation but low water cement ratio and, consequently, high early and final strengths. Sika® ViscoCrete® ACE 456 may be used in combination with SikaStabilizer® for producing advanced selfcompacting concrete like Smart Dynamic Concrete (SDC, latest V- type SCC), without the aid of vibration, for economic, ecological and ergonomic precast production.  

Advantages

Sika® ViscoCrete® ACE 456 offer the following
benefits for the precast concrete industry:
  • Production of highly flowable, robust selfcompacting concrete having a low water cement ratio along with an optimal rheology.
  • Enhanced robustness and consistency in concrete quality with low stickiness.
  • Environmentally friendly, CO2 reduced mixdesign optimization.
  • Elimination of heat curing.
  • Improved surface appearance.
  • Durable precast concrete elements as per EN 206-1.
  • Elimination of the energy required for placing, compaction and curing.
  • Optimization of the curing cycles by reducing curing time or curing temperature.
  • Increased productivity.

Packaging

Sika® ViscoCrete® ACE 456 is available in 1000 litre containers or in bulk.

Colour

Whitish to light brownish liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

EN EN934-2 and ASTM C494 Type A, E & F.

 
Product Information

Shelf Life

If stored in unopened containers according to manufacturer’s instructions, the shelf life is 1 year.

Storage Conditions

Sika® ViscoCrete® ACE 456 must be stored in a place where the temperature does not drop below 5°C. In case of freezing, warm up and homogenise the admixture solution before using.

occurrence of a surface layer with Sika® ViscoCrete® ACE 456 is normal and will have no effect on the performance of the product.

Density

1.060 typical

pH-Value

4-7

Total Chloride Ion Content

<0.1%

Equivalent Sodium Oxide

< 3%
System information

Compatibility

Sika® ViscoCrete® ACE 456 is compatible and recommended for use with:

  • SikaStabilizer® to modify the viscosity of SCC.
  • SikaControl® AER, air entraining admixture, to improve freeze-thaw resistance (exposure class XF1 to XF4, EN 206-1)
  • Sika Separol®, demoulding agent for easy formwork removal and improved finish.
  • Sika Antisol®, curing compound for highly efficient water retention and friendly use.

Sika® ViscoCrete® ACE 456 is not compatible with all admixtures of Sikament® RB series.

Application

Application Information

Dispensing

Sika® ViscoCrete® ACE 456 is a liquid admixture to be added to the concrete during the mixing process. The best results are obtained when the admixture is added to the mixing water that is used for the concrete mix after all the other components are already in the mixer and after the addition of at least 80% of the total water. The water content is adjusted to obtain the desired consistence or workability. Optimal water reduction is obtained if the Sika® ViscoCrete® ACE 456 is poured into the concrete mix right after the addition of the initial 80-90% of mixing water. Avoid adding the admixture to the dry aggregates. After adding Sika® ViscoCrete® ACE 456 admixture provide enough mixing time to secure a homogenous dispersion. Continue mixing and adjust the water content to obtain the required workability.

 
Consumption

Recommended Dosage

The recommended dosage rate is 0.3 to 2.0 liters per 100 kg of the binder.
Other dosages may be used in special cases according to specific production conditions. In this case please consult our Technical Services Department.

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