PDS Sika® ViscoCrete® ACE 520
PDS Sika® ViscoCrete® ACE 520
Product Data Sheet (PDS)
Sika® ViscoCrete® ACE 520 (Admixture Controlled Energy) consists of a range of innovative superplasticizers based on newly developed polycarboxylate ether polymer. The particular molecular configuration of Sika® ViscoCrete® ACE 520 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 520 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 520. Suitable for use in hot and tropical climatic conditions.
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Sika® ViscoCrete® ACE 520

(former MGlenium ACE 520)

HIGH-PERFORMANCE POLYCARBOXYLATE ETHER (PCE) SUPERPLASTICIZERS FOR THE PRECAST CONCRETE INDUSTRY

 Sika® ViscoCrete® ACE 520 (Admixture Controlled Energy) consists of a range of innovative superplasticizers based on newly developed polycarboxylate ether polymer. The particular molecular configuration of Sika® ViscoCrete® ACE 520 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 520 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 520. Suitable for use in hot and tropical climatic conditions.  

Sika® ViscoCrete® ACE 520 offers the following benefits for the precast concrete industry:
  • Production of highly flowable self-compacting 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 mix design optimization
  • Elimination of heat curing
  • Improved surface appearance
  • Durable precast concrete elements as per EN 206-1
  • Increased productivity
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PDS Sika® ViscoCrete® ACE 520
PDS Sika® ViscoCrete® ACE 520
Product Data Sheet (PDS)
Sika® ViscoCrete® ACE 520 (Admixture Controlled Energy) consists of a range of innovative superplasticizers based on newly developed polycarboxylate ether polymer. The particular molecular configuration of Sika® ViscoCrete® ACE 520 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 520 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 520. Suitable for use in hot and tropical climatic conditions.
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Usage

  • Sika® ViscoCrete® ACE 520 is suitable for making precast concrete elements with highly-fluid concrete without segregation but with low water cement ratio, consequently, high early and final strengths.
  • Sika® ViscoCrete® ACE 520 may be used in combination with Sika® Stabilizer for producing advanced self-compacting 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 520 offers the following benefits for the precast concrete industry:
  • Production of highly flowable self-compacting 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 mix design optimization
  • Elimination of heat curing
  • Improved surface appearance
  • Durable precast concrete elements as per EN 206-1
  • Increased productivity

Packaging

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

Colour

Colorless to brown liquid

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

Sika® ViscoCrete® ACE 507 M meets the requirements of ASTM C-494 Type A, E & 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 use.

Density

~1.08 kg/l (+25 °C)

pH-Value

5–8

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® ACE 520 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® ACE 520 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® ACE 520 with the above products or other admixtures. Please consult our Sika Technical Department for further assistance.

Dispensing

Sika® ViscoCrete® ACE 520 is a ready-to-use admixture to be added to the concrete as a separate component. Optimal result is obtained if Sika® ViscoCrete® ACE 520 is poured into the concrete mix right after the addition of the first 80 % of the mixing water, i.e. when all solids are wetted. Avoid adding the admixture to the dry aggregates.
Consumption

Recommended dosage

0.3 - 3.0 L per 100 kg of total binder. Trial mixes must be performed to establish the exact dosage rate as per the project requirements.

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